public class DSRequest extends RPCRequest
DataSource operation
.
All properties which are legal on RPCRequest
are legal, in addition to the properties
listed here.RPCRequest
factoryCreated, factoryProperties
Constructor and Description |
---|
DSRequest() |
DSRequest(DSOperationType operationType) |
DSRequest(DSOperationType operationType,
Criteria criteria) |
DSRequest(DSOperationType operationType,
com.google.gwt.core.client.JavaScriptObject data) |
DSRequest(DSOperationType operationType,
Record data) |
DSRequest(DSOperationType operationType,
java.lang.String operationId) |
DSRequest(DSOperationType operationType,
java.lang.String operationId,
Criteria criteria) |
DSRequest(DSOperationType operationType,
java.lang.String operationId,
com.google.gwt.core.client.JavaScriptObject data) |
DSRequest(DSOperationType operationType,
java.lang.String operationId,
Record data) |
DSRequest(com.google.gwt.core.client.JavaScriptObject jsObj) |
Modifier and Type | Method and Description |
---|---|
java.lang.String |
getAdditionalOutputs()
For fetch, add or update operation, an optional comma separated list of fields to fetch from another,
related DataSource.
|
java.lang.String |
getComponentId()
For requests submitted by a
DataBoundComponent , the Canvas.ID of the submitting component. |
Criteria |
getCriteria()
Return the Criteria associated with a FETCH operation.
|
DSProtocol |
getDataProtocol()
DataProtocol for this particular request. |
java.lang.String |
getDataSource()
DataSource this DSRequest will act on.
|
java.lang.Integer |
getEndRow()
End row of requested results, used only with fetch operations.
|
ExportFormat |
getExportAs()
The format in which the data should be exported.
|
java.lang.String |
getExportCSS()
When using
RPCManager.exportContent() to produce a .pdf from a
Smart GWT UI, this property allows dynamic CSS to be passed to the server. |
Record[] |
getExportData()
Only applies to request properties passed to
ListGrid.exportClientData() . |
java.lang.Boolean |
getExportDatesAsFormattedString()
When exporting via
ListGrid.exportClientData() to an
XLS or OOXML spreadsheet, forces dates to export as a string rather than a true date value. |
java.lang.String |
getExportDelimiter()
The character to use as a field-separator in CSV exports.
|
ExportDisplay |
getExportDisplay()
Specifies whether the exported data will be downloaded as an attachment or displayed in a new browser window.
|
java.lang.String[] |
getExportFields()
The list of field names to export.
|
java.lang.String |
getExportFilename()
The name of the file to save the exported data into.
|
java.lang.String |
getExportFooter()
Optional text to appear at the end of the file.
|
java.lang.String |
getExportHeader()
Optional text to appear at the beginning of the file.
|
java.lang.Boolean |
getExportHeaderless()
This property allows omitting column names from CSV and Excel exports (no effect on JSON or XML exports).
|
ExportImageFormat |
getExportImageFormat()
The image format in which the SVG graphic should be exported.
|
java.lang.Float |
getExportImageQuality()
Deprecated.
|
java.lang.Double |
getExportImageQualityAsDouble()
If exporting in
JPEG format , the output JPEG quality level. |
java.lang.Boolean |
getExportNumbersAsFormattedString()
When exporting via
ListGrid.exportClientData() to an
XLS or OOXML spreadsheet, forces numbers to export as a string rather than a true numerical
value. |
java.lang.String |
getExportPath()
If
exportToFilesystem is set, optionally specifies a
path to use when saving the file. |
PropertyIdentifier |
getExportPropertyIdentifier()
Determines the
PropertyIdentifier to be used in the exported data. |
java.lang.Boolean |
getExportRawValues()
Whether formatting settings should be applied to data being exported.
|
java.lang.Boolean |
getExportResults()
When set, causes the results of the DSRequest to be exported to a file, whose name
and format are indicated by
exportFilename and
exportAs respectively. |
java.lang.Boolean |
getExportShowHeaderSpanTitles()
When you erxport a
ListGrid that has headerSpans , should headerSpans also be exported. |
java.lang.String |
getExportSpanTitleSeparator()
When you export a
ListGrid that has headerSpans defined and exportShowHeaderSpanTitles is true, the behavior is
dependent on the export type. |
boolean |
getExportStreaming()
When exporting to OOXML format (this is the standard file format used by Excel 2007 and later), we default to using
streaming mode, for memory efficiency.
|
java.lang.String |
getExportTitleSeparatorChar()
The character with which to replace spaces in field-titles when exporting to XML.
|
java.lang.Boolean |
getExportToClient()
If set, Smart GWT Server will export data back to the client, either as a file download or as content in a new browser
window, depending on the setting of
exportDisplay . |
java.lang.Boolean |
getExportToFilesystem()
If set, Smart GWT Server will export data to a file on the server filesystem.
|
java.lang.String |
getExportTZ()
For server-side export with
ExportFormat "xls" or "ooxml" only, timezone to use when
saving values from FieldType "datetime" to the spreadsheet. |
java.lang.Boolean |
getExportValueFields()
This flag has a different meaning depending on whether you are doing a client-driven or server-driven export.
|
java.util.Map |
getFieldValueExpressions()
A set of key:value pairs, mapping field names to expressions that will be evaluated
server-side to derive a value for that field.
|
java.lang.Boolean |
getGenerateRelatedUpdates()
Specifies should related updates have to be generated.
|
java.lang.String[] |
getGroupBy()
List of fields to group by when using
server-side summarization . |
java.util.Map |
getHeaderData()
For DataSources using SOAP messaging with a WSDL web service, data to be serialized to form SOAP headers, as a map from
the header part name to the data.
|
java.lang.Boolean |
getKeepParentsOnFilter()
This property is for advanced use in integrating trees that
load data on demand using data paging. |
java.lang.String |
getLineBreakStyle()
The style of line-breaks to use in the exported output.
|
Record |
getOldValues()
For an
update or remove operation, the original values from the record that is being updated
or removed. |
java.lang.String |
getOperationId()
When a
DataBoundComponent sends a DSRequest, the dsRequest.operationId
will be automatically picked up from the fetchOperation , addOperation , etc properties of the
DataBoundComponent. |
DSOperationType |
getOperationType()
Type of operation being performed: "fetch", "add", "remove", "update" or "custom".
|
static DSRequest |
getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj) |
java.lang.String |
getOutputs()
The list of fields to return in the response, specified as a comma-separated string (eg,
"foo, bar, baz" ). |
TreeNode |
getParentNode()
For advanced use in integrating trees that
load
data on demand with web services, parentNode is automatically set in "fetch" DSRequests issued by a
databound TreeGrid that is loading children for that parentNode . |
java.lang.Boolean |
getPendingAdd()
Indicates that a validation request is being made for a record that will ultimately be saved with an "add" request, as
opposed to an "update" request.
|
java.lang.Boolean |
getProgressiveLoading()
Sets
progressive loading mode for this particular
request, overriding the OperationBinding- and DataSource-level settings. |
java.lang.String |
getRequestId()
Automatically generated unique ID for this request.
|
ResultSet |
getResultSet()
For advanced use in integrating dataset paging with web services, the ResultSet that issued this "fetch" DSRequest is
automatically made available as the
resultSet property. |
ResultTree |
getResultTree()
For advanced use in integrating trees that
load
data on demand with web services, the ResultTree that issued this "fetch" DSRequest is automatically made available as
the resultTree property. |
java.lang.Boolean |
getShouldUseCache()
This is a per-request flag for explicitly controlling whether the cache is used (bypassing it when not wanted, or using
it when settings would indicate otherwise).
|
SortSpecifier[] |
getSortBy()
Fieldname to sortBy
|
java.lang.Integer |
getStartRow()
Starting row of requested results, used only with fetch operations.
|
boolean |
getStreamResults()
If true, results will be streamed on the server, rather than all records being read into server memory at once; this
approach is appropriate for retrieving or exporting large datasets without swamping the server.
|
java.util.Map<java.lang.String,SummaryFunctionType> |
getSummaryFunctions()
A mapping from field names to summary functions to be applied to each field.
|
TextMatchStyle |
getTextMatchStyle()
For "fetch" operations, how search criteria should be interpreted for text fields: one of "exact" for exact match,
"exactCase" for case-sensitive exact match, "startsWith" for matching at the beginning only, or "substring" for
substring match.
|
java.lang.Boolean |
getUseFlatFields()
When
useFlatFields is set for a request to be sent to a WSDL web service, when
creating the input XML message to send to the web service, properties in
request.data will be used as the values for XML elements of the same
name, at
any level of nesting. |
java.lang.Boolean |
getUseFlatHeaderFields()
Cause the
useFlatFields XML serialization behavior to be
used for all soap headers in the request. |
java.lang.Boolean |
getUseStrictJSON()
Should the HTTP response to this request be formatted using the strict JSON subset of the javascript language? If set to
true, responses returned by the server should match the format described here.
|
ValidationMode |
getValidationMode()
Mode of validation for entered data.
|
void |
setAdditionalOutputs(java.lang.String additionalOutputs)
For fetch, add or update operation, an optional comma separated list of fields to fetch from another,
related DataSource.
|
void |
setAttribute(java.lang.String property,
java.lang.Object value)
Set a custom attribute value on the DSRequest as an Object.
|
void |
setCallback(DSCallback callback) |
void |
setComponentId(java.lang.String componentId)
For requests submitted by a
DataBoundComponent , the Canvas.ID of the submitting component. |
void |
setCriteria(Criteria criteria)
This method applies to "fetch" requests only; for update or delete operations pass a
Record to setData() which contains primaryKey values as Record attributes.
|
void |
setDataProtocol(DSProtocol dataProtocol)
DataProtocol for this particular request. |
void |
setDataSource(java.lang.String dataSource)
DataSource this DSRequest will act on.
|
void |
setEndRow(java.lang.Integer endRow)
End row of requested results, used only with fetch operations.
|
void |
setExportAs(ExportFormat exportAs)
The format in which the data should be exported.
|
void |
setExportCSS(java.lang.String exportCSS)
When using
RPCManager.exportContent() to produce a .pdf from a
Smart GWT UI, this property allows dynamic CSS to be passed to the server. |
void |
setExportData(Record... exportData)
Only applies to request properties passed to
ListGrid.exportClientData() . |
void |
setExportDatesAsFormattedString(java.lang.Boolean exportDatesAsFormattedString)
When exporting via
ListGrid.exportClientData() to an
XLS or OOXML spreadsheet, forces dates to export as a string rather than a true date value. |
void |
setExportDelimiter(java.lang.String exportDelimiter)
The character to use as a field-separator in CSV exports.
|
void |
setExportDisplay(ExportDisplay exportDisplay)
Specifies whether the exported data will be downloaded as an attachment or displayed in a new browser window.
|
void |
setExportFields(java.lang.String... exportFields)
The list of field names to export.
|
void |
setExportFilename(java.lang.String exportFilename)
The name of the file to save the exported data into.
|
void |
setExportFooter(java.lang.String exportFooter)
Optional text to appear at the end of the file.
|
void |
setExportHeader(java.lang.String exportHeader)
Optional text to appear at the beginning of the file.
|
void |
setExportHeaderless(java.lang.Boolean exportHeaderless)
This property allows omitting column names from CSV and Excel exports (no effect on JSON or XML exports).
|
void |
setExportImageFormat(ExportImageFormat exportImageFormat)
The image format in which the SVG graphic should be exported.
|
void |
setExportImageQuality(java.lang.Double exportImageQuality)
If exporting in
JPEG format , the output JPEG quality level. |
void |
setExportImageQuality(java.lang.Float exportImageQuality)
Deprecated.
|
void |
setExportNumbersAsFormattedString(java.lang.Boolean exportNumbersAsFormattedString)
When exporting via
ListGrid.exportClientData() to an
XLS or OOXML spreadsheet, forces numbers to export as a string rather than a true numerical
value. |
void |
setExportPath(java.lang.String exportPath)
If
exportToFilesystem is set, optionally specifies a
path to use when saving the file. |
void |
setExportPropertyIdentifier(PropertyIdentifier exportPropertyIdentifier)
Determines the
PropertyIdentifier to be used in the exported data. |
void |
setExportRawValues(java.lang.Boolean exportRawValues)
Whether formatting settings should be applied to data being exported.
|
void |
setExportResults(java.lang.Boolean exportResults)
When set, causes the results of the DSRequest to be exported to a file, whose name
and format are indicated by
exportFilename and
exportAs respectively. |
void |
setExportShowHeaderSpanTitles(java.lang.Boolean exportShowHeaderSpanTitles)
When you erxport a
ListGrid that has headerSpans , should headerSpans also be exported. |
void |
setExportSpanTitleSeparator(java.lang.String exportSpanTitleSeparator)
When you export a
ListGrid that has headerSpans defined and exportShowHeaderSpanTitles is true, the behavior is
dependent on the export type. |
void |
setExportStreaming(boolean exportStreaming)
When exporting to OOXML format (this is the standard file format used by Excel 2007 and later), we default to using
streaming mode, for memory efficiency.
|
void |
setExportTitleSeparatorChar(java.lang.String exportTitleSeparatorChar)
The character with which to replace spaces in field-titles when exporting to XML.
|
void |
setExportToClient(java.lang.Boolean exportToClient)
If set, Smart GWT Server will export data back to the client, either as a file download or as content in a new browser
window, depending on the setting of
exportDisplay . |
void |
setExportToFilesystem(java.lang.Boolean exportToFilesystem)
If set, Smart GWT Server will export data to a file on the server filesystem.
|
void |
setExportTZ(java.lang.String exportTZ)
For server-side export with
ExportFormat "xls" or "ooxml" only, timezone to use when
saving values from FieldType "datetime" to the spreadsheet. |
void |
setExportValueFields(java.lang.Boolean exportValueFields)
This flag has a different meaning depending on whether you are doing a client-driven or server-driven export.
|
void |
setFieldValueExpressions(java.util.Map fieldValueExpressions)
A set of key:value pairs, mapping field names to expressions that will be evaluated
server-side to derive a value for that field.
|
void |
setGenerateRelatedUpdates(java.lang.Boolean generateRelatedUpdates)
Specifies should related updates have to be generated.
|
void |
setGroupBy(java.lang.String... groupBy)
List of fields to group by when using
server-side summarization . |
void |
setHeaderData(java.util.Map headerData)
For DataSources using SOAP messaging with a WSDL web service, data to be serialized to form SOAP headers, as a map from
the header part name to the data.
|
void |
setKeepParentsOnFilter(java.lang.Boolean keepParentsOnFilter)
This property is for advanced use in integrating trees that
load data on demand using data paging. |
void |
setLineBreakStyle(java.lang.String lineBreakStyle)
The style of line-breaks to use in the exported output.
|
void |
setOldValues(com.google.gwt.core.client.JavaScriptObject oldValues)
For an
update or remove operation, the original values from the record that is being updated
or removed. |
void |
setOldValues(java.util.Map oldValues)
For an
update or remove operation, the original values from the record that is being updated
or removed. |
void |
setOldValues(Record oldValues)
For an
update or remove operation, the original values from the record that is being updated
or removed. |
void |
setOperationId(java.lang.String operationId)
When a
DataBoundComponent sends a DSRequest, the dsRequest.operationId
will be automatically picked up from the fetchOperation , addOperation , etc properties of the
DataBoundComponent. |
void |
setOperationType(DSOperationType operationType)
Type of operation being performed: "fetch", "add", "remove", "update" or "custom".
|
void |
setOutputs(java.lang.String outputs)
The list of fields to return in the response, specified as a comma-separated string (eg,
"foo, bar, baz" ). |
void |
setParams(java.util.Map params)
Values to be sent as simple HTTP params, as a JavaScript Object where each property/value pair will become an HTTP
parameter name and value.
|
void |
setPendingAdd(java.lang.Boolean pendingAdd)
Indicates that a validation request is being made for a record that will ultimately be saved with an "add" request, as
opposed to an "update" request.
|
void |
setProgressiveLoading(java.lang.Boolean progressiveLoading)
Sets
progressive loading mode for this particular
request, overriding the OperationBinding- and DataSource-level settings. |
void |
setShouldUseCache(java.lang.Boolean shouldUseCache)
This is a per-request flag for explicitly controlling whether the cache is used (bypassing it when not wanted, or using
it when settings would indicate otherwise).
|
void |
setSkinName(java.lang.String skinName)
Set the skin to use.
|
void |
setSortBy(SortSpecifier[] sortSpecifiers)
Fieldnames to sortBy.
|
void |
setStartRow(java.lang.Integer startRow)
Starting row of requested results, used only with fetch operations.
|
void |
setStreamResults(boolean streamResults)
If true, results will be streamed on the server, rather than all records being read into server memory at once; this
approach is appropriate for retrieving or exporting large datasets without swamping the server.
|
void |
setSummaryFunctions(java.util.Map<java.lang.String,SummaryFunctionType> summaryFunctions)
A mapping from field names to summary functions to be applied to each field.
|
void |
setTextMatchStyle(TextMatchStyle textMatchStyle)
For "fetch" operations, how search criteria should be interpreted for text fields: one of "exact" for exact match,
"exactCase" for case-sensitive exact match, "startsWith" for matching at the beginning only, or "substring" for
substring match.
|
void |
setUseFlatFields(java.lang.Boolean useFlatFields)
When
useFlatFields is set for a request to be sent to a WSDL web service, when
creating the input XML message to send to the web service, properties in
request.data will be used as the values for XML elements of the same
name, at
any level of nesting. |
void |
setUseFlatHeaderFields(java.lang.Boolean useFlatHeaderFields)
Cause the
useFlatFields XML serialization behavior to be
used for all soap headers in the request. |
void |
setUseStrictJSON(java.lang.Boolean useStrictJSON)
Should the HTTP response to this request be formatted using the strict JSON subset of the javascript language? If set to
true, responses returned by the server should match the format described here.
|
void |
setValidationMode(ValidationMode validationMode)
Mode of validation for entered data.
|
getActionURL, getAllowIE9Leak, getBypassCache, getCallbackParam, getContainsCredentials, getContentType, getData, getDataAsString, getDownloadResult, getDownloadToNewWindow, getEvalResult, getHttpHeaders, getHttpMethod, getHttpProxyURL, getIgnoreTimeout, getMockMode, getOmitNullMapValuesInResponse, getParams, getPrompt, getPromptCursor, getPromptDelay, getPromptStyle, getSendNoQueue, getServerOutputAsString, getShowPrompt, getSuppressAutoDraw, getTimeout, getTransport, getUseCursorTracker, getUseHttpProxy, getUseSimpleHttp, getWillHandleError, getWithCredentials, setActionURL, setAllowIE9Leak, setBypassCache, setCallbackParam, setContainsCredentials, setContentType, setData, setData, setData, setData, setDownloadResult, setDownloadToNewWindow, setEvalResult, setEvalVars, setHttpHeaders, setHttpMethod, setHttpProxyURL, setIgnoreTimeout, setMockMode, setOmitNullMapValuesInResponse, setPrompt, setPromptCursor, setPromptDelay, setPromptStyle, setSendNoQueue, setServerOutputAsString, setShowPrompt, setSuppressAutoDraw, setTimeout, setTransport, setUseCursorTracker, setUseHttpProxy, setUseSimpleHttp, setWillHandleError, setWithCredentials
applyFactoryProperties, doAddHandler, fireEvent, getAttribute, getAttributeAsBoolean, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsDoubleArray, getAttributeAsFloat, getAttributeAsInt, getAttributeAsIntArray, getAttributeAsJavaScriptObject, getAttributeAsLong, getAttributeAsMap, getAttributeAsObject, getAttributeAsRecord, getAttributeAsString, getAttributeAsStringArray, getAttributes, getHandlerCount, isFactoryCreated, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttributeAsJavaObject, setFactoryCreated
public DSRequest()
public DSRequest(com.google.gwt.core.client.JavaScriptObject jsObj)
public DSRequest(DSOperationType operationType)
public DSRequest(DSOperationType operationType, java.lang.String operationId)
public DSRequest(DSOperationType operationType, Record data)
public DSRequest(DSOperationType operationType, java.lang.String operationId, Record data)
public DSRequest(DSOperationType operationType, com.google.gwt.core.client.JavaScriptObject data)
public DSRequest(DSOperationType operationType, java.lang.String operationId, com.google.gwt.core.client.JavaScriptObject data)
public DSRequest(DSOperationType operationType, Criteria criteria)
public DSRequest(DSOperationType operationType, java.lang.String operationId, Criteria criteria)
public static DSRequest getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
public void setAdditionalOutputs(java.lang.String additionalOutputs)
Fields should be specified in the format
"localFieldName!relatedDataSourceID.relatedDataSourceFieldName"
.
where relatedDataSourceID
is the ID of the related dataSource, and
relatedDataSourceFieldName
is the field for which you want to
fetch related values. The returned field values will be stored on
the data returned to the client under the specified localFieldName
.
Note that this will be applied in addition to any specified outputs
.
Note that as with DataSourceField.includeFrom
, the
related dataSource must be
linked to the primary datasource via a foreignKey relationship.
Note additionalOutputs sent in request from the browser can be completely disabled in
server.properties
by setting
datasource.allowClientAdditionalOutputs
:
datasource.allowClientAdditionalOutputs: falseIn this case
additionalOutputs
sent from the browser
will be cleared before
executing request. Note that programatically configured additionalOutputs are always allowed, but
you can't modify them from within a DMI method, so the only way to execute a request
with additionalOutputs that differ from what was sent by the client is to create a new DSRequest
Note : This is an advanced setting
additionalOutputs
- New additionalOutputs value. Default value is nullpublic java.lang.String getAdditionalOutputs()
Fields should be specified in the format
"localFieldName!relatedDataSourceID.relatedDataSourceFieldName"
.
where relatedDataSourceID
is the ID of the related dataSource, and
relatedDataSourceFieldName
is the field for which you want to
fetch related values. The returned field values will be stored on
the data returned to the client under the specified localFieldName
.
Note that this will be applied in addition to any specified outputs
.
Note that as with DataSourceField.includeFrom
, the
related dataSource must be
linked to the primary datasource via a foreignKey relationship.
Note additionalOutputs sent in request from the browser can be completely disabled in
server.properties
by setting
datasource.allowClientAdditionalOutputs
:
datasource.allowClientAdditionalOutputs: falseIn this case
additionalOutputs
sent from the browser
will be cleared before
executing request. Note that programatically configured additionalOutputs are always allowed, but
you can't modify them from within a DMI method, so the only way to execute a request
with additionalOutputs that differ from what was sent by the client is to create a new DSRequestpublic void setComponentId(java.lang.String componentId)
DataBoundComponent
, the Canvas.ID
of the submitting component. This ID will be present for
operations including automatic saves by a ListGrid during editing
, or calls to
form.saveData()
. It will not be present for a direct call
to a DataSource method such as DataSource.fetchData()
.
Note
this is the component's String ID - you can retrieve the component itself via Canvas.getById()
.
This property should be used for debugging purposes
only - do not use it to trigger differences in server-side behavior, instead, use operationId
because only operationId
is considered when
assessing request equivalence
.
componentId
- New componentId value. Default value is nullpublic java.lang.String getComponentId()
DataBoundComponent
, the Canvas.ID
of the submitting component. This ID will be present for
operations including automatic saves by a ListGrid during editing
, or calls to
form.saveData()
. It will not be present for a direct call
to a DataSource method such as DataSource.fetchData()
.
Note
this is the component's String ID - you can retrieve the component itself via Canvas.getById()
.
This property should be used for debugging purposes
only - do not use it to trigger differences in server-side behavior, instead, use operationId
because only operationId
is considered when
assessing request equivalence
.
public void setDataProtocol(DSProtocol dataProtocol)
DataProtocol
for this particular request. Note:
Typically developers should use operation bindings
to
specify an explicit data protocol for a request.
One exception: advanced developers may wish to have a custom
request transformer
with entirely client-side handling for
some requests. This may be achieved by setting the request's dataProtocol
to "clientCustom"
within transformRequest, and also triggering application code which
will fire DataSource.processResponse()
when complete.
The DataSource.getDataProtocol()
method may be used to
determine what data protocol will be used to handle a specific request based on this property (if set), otherwise the
settings at the operationBinding
or dataSource
levels.
dataProtocol
- New dataProtocol value. Default value is nullpublic DSProtocol getDataProtocol()
DataProtocol
for this particular request. Note:
Typically developers should use operation bindings
to
specify an explicit data protocol for a request.
One exception: advanced developers may wish to have a custom
request transformer
with entirely client-side handling for
some requests. This may be achieved by setting the request's dataProtocol
to "clientCustom"
within transformRequest, and also triggering application code which
will fire DataSource.processResponse()
when complete.
The DataSource.getDataProtocol()
method may be used to
determine what data protocol will be used to handle a specific request based on this property (if set), otherwise the
settings at the operationBinding
or dataSource
levels.
public void setDataSource(java.lang.String dataSource)
This property is generally automatically populated, for example when calling
DataSource.fetchData()
the dataSource property is set to the
target DataSource.
dataSource
- New dataSource value. Default value is nullpublic java.lang.String getDataSource()
This property is generally automatically populated, for example when calling
DataSource.fetchData()
the dataSource property is set to the
target DataSource.
public void setEndRow(java.lang.Integer endRow)
Note that startRow and endRow are zero-based, inclusive at the beginning and exclusive at the end (like substring), so startRow: 0, endRow: 1 is a request for the first record.
endRow
- New endRow value. Default value is nullpublic java.lang.Integer getEndRow()
Note that startRow and endRow are zero-based, inclusive at the beginning and exclusive at the end (like substring), so startRow: 0, endRow: 1 is a request for the first record.
public void setExportAs(ExportFormat exportAs)
ExportFormat
for more
information.exportAs
- New exportAs value. Default value is "csv"public ExportFormat getExportAs()
ExportFormat
for more
information.public void setExportCSS(java.lang.String exportCSS)
RPCManager.exportContent()
to produce a .pdf from a
Smart GWT UI, this property allows dynamic CSS to be passed to the server. Since the exportContent()
system already provides a way to specify a custom skin or additional stylesheet for export, exportCSS
should only be used for small bits of CSS that are necessarily dynamic. For example, when printing a very wide page,
such as a grid with many columns or a very wide chart, you could send the string "@page {size: A4 landscape; }" as
exportCSS
to cause the generated PDF to use landscape mode, so that all content fits without clipping.
exportCSS
- New exportCSS value. Default value is nullpublic java.lang.String getExportCSS()
RPCManager.exportContent()
to produce a .pdf from a
Smart GWT UI, this property allows dynamic CSS to be passed to the server. Since the exportContent()
system already provides a way to specify a custom skin or additional stylesheet for export, exportCSS
should only be used for small bits of CSS that are necessarily dynamic. For example, when printing a very wide page,
such as a grid with many columns or a very wide chart, you could send the string "@page {size: A4 landscape; }" as
exportCSS
to cause the generated PDF to use landscape mode, so that all content fits without clipping.
public void setExportData(Record... exportData)
ListGrid.exportClientData()
. If specified this property contains an arbitrary set of data to be exported.exportData
- New exportData value. Default value is nullpublic Record[] getExportData()
ListGrid.exportClientData()
. If specified this property contains an arbitrary set of data to be exported.public void setExportDatesAsFormattedString(java.lang.Boolean exportDatesAsFormattedString)
ListGrid.exportClientData()
to an
XLS
or OOXML
spreadsheet, forces dates to export as a string rather than a true date value.
If a date value is provided to a spreadsheet as a string, Excel or other spreadsheet applications may not recognize them as being date values that are valid for use in date-specific functions in formulas, filters, etc.
For this
reason, the default behavior of exportClientData
is to provide date values to the spreadsheet as true date
values. If Format Strings
are provided via properties like dataSourceField.format
these will be translated to Excel /
OpenOffice format strings and used when generating spreadsheets. Other formatting logic, such as cell formatters
, will not be used since they cannot be
automatically translated to an Excel format string. If no translatable format string is available, date values will be
provided to the spreadsheet with no formatter and the spreadsheet program's default formatting for date values will be
used.
If exportDatesAsFormattedString
is set to true, date fields will appear as strings that exactly
match the formatting shown in the DataBoundComponent
. As noted above, this means the
spreadsheet program will not recognize the value as a date.
exportDatesAsFormattedString
- New exportDatesAsFormattedString value. Default value is nullDataSourceField.setExportFormat(java.lang.String)
,
ExportFormatting overview and related methods
public java.lang.Boolean getExportDatesAsFormattedString()
ListGrid.exportClientData()
to an
XLS
or OOXML
spreadsheet, forces dates to export as a string rather than a true date value.
If a date value is provided to a spreadsheet as a string, Excel or other spreadsheet applications may not recognize them as being date values that are valid for use in date-specific functions in formulas, filters, etc.
For this
reason, the default behavior of exportClientData
is to provide date values to the spreadsheet as true date
values. If Format Strings
are provided via properties like dataSourceField.format
these will be translated to Excel /
OpenOffice format strings and used when generating spreadsheets. Other formatting logic, such as cell formatters
, will not be used since they cannot be
automatically translated to an Excel format string. If no translatable format string is available, date values will be
provided to the spreadsheet with no formatter and the spreadsheet program's default formatting for date values will be
used.
If exportDatesAsFormattedString
is set to true, date fields will appear as strings that exactly
match the formatting shown in the DataBoundComponent
. As noted above, this means the
spreadsheet program will not recognize the value as a date.
DataSourceField.getExportFormat()
,
ExportFormatting overview and related methods
public void setExportDelimiter(java.lang.String exportDelimiter)
exportDelimiter
- New exportDelimiter value. Default value is ","public java.lang.String getExportDelimiter()
public void setExportDisplay(ExportDisplay exportDisplay)
ExportDisplay
for more information.exportDisplay
- New exportDisplay value. Default value is "download"public ExportDisplay getExportDisplay()
ExportDisplay
for more information.public void setExportFields(java.lang.String... exportFields)
If exportFields is not provided:
exportData()
, the field list in the exported output is every
non-hidden field defined in the DataSource, in DataSource definition orderexportClientData()
and we are not exporting to OOXML, or we
are exporting to OOXML but we are not streaming
, the
field list in the exported output is based on the client data sent up, taking every row into account (so if there is a
value for field "foo" only in row 57, we will output a column "foo", the cells of which are empty except for row
57)exportClientData()
and we are exporting to OOXML and streaming is in force (the default for OOXML), the field list in
the exported output is based on the client data sent up, taking just the first row into account (so if there is a value
for field "foo" only in row 57, we will not output a column "foo" at all)exportFields
- New exportFields value. Default value is nullpublic java.lang.String[] getExportFields()
If exportFields is not provided:
exportData()
, the field list in the exported output is every
non-hidden field defined in the DataSource, in DataSource definition orderexportClientData()
and we are not exporting to OOXML, or we
are exporting to OOXML but we are not streaming
, the
field list in the exported output is based on the client data sent up, taking every row into account (so if there is a
value for field "foo" only in row 57, we will output a column "foo", the cells of which are empty except for row
57)exportClientData()
and we are exporting to OOXML and streaming is in force (the default for OOXML), the field list in
the exported output is based on the client data sent up, taking just the first row into account (so if there is a value
for field "foo" only in row 57, we will not output a column "foo" at all)public void setExportFilename(java.lang.String exportFilename)
exportToFilesystem
is set, this is the name of the file the
server creates on its filesystem. If exportToClient
is
set, this is the filename that will appear to the browser. If the exportFilename that you specify does not include
an extension, one will be added to it based on the ExportFormat
specified by exportAs
. Filename is forced to have the correct extension to work
around bugs in IE, but if you don't want the filename to be manipulated, use "custom" exportFormat
, see example.
exportFilename
- New exportFilename value. Default value is nullsetExportPath(java.lang.String)
,
Custom Export (Custom Response) Examplepublic java.lang.String getExportFilename()
exportToFilesystem
is set, this is the name of the file the
server creates on its filesystem. If exportToClient
is
set, this is the filename that will appear to the browser. If the exportFilename that you specify does not include
an extension, one will be added to it based on the ExportFormat
specified by exportAs
. Filename is forced to have the correct extension to work
around bugs in IE, but if you don't want the filename to be manipulated, use "custom" exportFormat
, see example.
getExportPath()
,
Custom Export (Custom Response) Examplepublic void setExportFooter(java.lang.String exportFooter)
exportFooter
- New exportFooter value. Default value is nullpublic java.lang.String getExportFooter()
public void setExportHeader(java.lang.String exportHeader)
exportHeader
- New exportHeader value. Default value is nullpublic java.lang.String getExportHeader()
public void setExportHeaderless(java.lang.Boolean exportHeaderless)
exportHeaderless
- New exportHeaderless value. Default value is falsepublic java.lang.Boolean getExportHeaderless()
public void setExportImageFormat(ExportImageFormat exportImageFormat)
exportImageFormat
- New exportImageFormat value. Default value is "png"public ExportImageFormat getExportImageFormat()
public void setExportImageQuality(java.lang.Float exportImageQuality)
GwtFloatVsDouble
JPEG format
, the output JPEG quality level. This is
a number from 0 to 1, with 1 representing the best quality and 0 representing the least quality but smallest file size.exportImageQuality
- New exportImageQuality value. Default value is nullpublic java.lang.Float getExportImageQuality()
GwtFloatVsDouble
JPEG format
, the output JPEG quality level. This is
a number from 0 to 1, with 1 representing the best quality and 0 representing the least quality but smallest file size.public void setExportImageQuality(java.lang.Double exportImageQuality)
JPEG format
, the output JPEG quality level. This is
a number from 0 to 1, with 1 representing the best quality and 0 representing the least quality but smallest file size.exportImageQuality
- New exportImageQuality value. Default value is nullpublic java.lang.Double getExportImageQualityAsDouble()
JPEG format
, the output JPEG quality level. This is
a number from 0 to 1, with 1 representing the best quality and 0 representing the least quality but smallest file size.public void setExportNumbersAsFormattedString(java.lang.Boolean exportNumbersAsFormattedString)
ListGrid.exportClientData()
to an
XLS
or OOXML
spreadsheet, forces numbers to export as a string rather than a true numerical
value. If a number is provided to a spreadsheet as a string, Excel or other spreadsheet applications may not recognize them as being numbers that are valid for use in numerical formulas, filters, etc.
For this reason, the
default behavior of exportClientData
is to provide numerical values to the spreadsheet as true numbers. If
Format Strings
are provided via properties like dataSourceField.format
these will be translated to Excel /
OpenOffice format strings and used when generating spreadsheets. Other formatting logic, such as cell formatters
, will not be used since they cannot be
automatically translated to an Excel format string. If no translatable format string is available, numbers will be
provided to the spreadsheet with no formatter and the spreadsheet program's default formatting for numerical values will
be used.
If exportNumbersAsFormattedString
is set to true, numbers will appear as strings that exactly
match the formatting shown in the DataBoundComponent
. As noted above, this means the
spreadsheet program will not recognize the value as a number.
exportNumbersAsFormattedString
- New exportNumbersAsFormattedString value. Default value is nullDataSourceField.setExportFormat(java.lang.String)
,
ExportFormatting overview and related methods
public java.lang.Boolean getExportNumbersAsFormattedString()
ListGrid.exportClientData()
to an
XLS
or OOXML
spreadsheet, forces numbers to export as a string rather than a true numerical
value. If a number is provided to a spreadsheet as a string, Excel or other spreadsheet applications may not recognize them as being numbers that are valid for use in numerical formulas, filters, etc.
For this reason, the
default behavior of exportClientData
is to provide numerical values to the spreadsheet as true numbers. If
Format Strings
are provided via properties like dataSourceField.format
these will be translated to Excel /
OpenOffice format strings and used when generating spreadsheets. Other formatting logic, such as cell formatters
, will not be used since they cannot be
automatically translated to an Excel format string. If no translatable format string is available, numbers will be
provided to the spreadsheet with no formatter and the spreadsheet program's default formatting for numerical values will
be used.
If exportNumbersAsFormattedString
is set to true, numbers will appear as strings that exactly
match the formatting shown in the DataBoundComponent
. As noted above, this means the
spreadsheet program will not recognize the value as a number.
DataSourceField.getExportFormat()
,
ExportFormatting overview and related methods
public void setExportPath(java.lang.String exportPath)
exportToFilesystem
is set, optionally specifies a
path to use when saving the file. This path is relative to the default export path, which is set using the server.properties
setting export.location
; this is the project
webRoot by default. For example, with the default setting of export.location
, an exportPath
of "shared/ds"
and an exportFilename
of
"exportedData.csv"
, Smart GWT Server would export to file $webRoot/shared/ds/exportedData.csv
.
If you do not specify this property, Smart GWT Server will export to the file indicated by
exportFilename
directly in the default export location.
This property is only applicable when exportToFilesystem
is set.
exportPath
- New exportPath value. Default value is nullsetExportFilename(java.lang.String)
public java.lang.String getExportPath()
exportToFilesystem
is set, optionally specifies a
path to use when saving the file. This path is relative to the default export path, which is set using the server.properties
setting export.location
; this is the project
webRoot by default. For example, with the default setting of export.location
, an exportPath
of "shared/ds"
and an exportFilename
of
"exportedData.csv"
, Smart GWT Server would export to file $webRoot/shared/ds/exportedData.csv
.
If you do not specify this property, Smart GWT Server will export to the file indicated by
exportFilename
directly in the default export location.
This property is only applicable when exportToFilesystem
is set.
getExportFilename()
public void setExportPropertyIdentifier(PropertyIdentifier exportPropertyIdentifier)
PropertyIdentifier
to be used in the exported data. This essentially
means, should we export internal field names like "countryCode" or "EMPLOYEE_NO", or localized descriptive field titles
like "code du pays" or "Employee Number". This setting has a lot in common with exportRawValues
; both are largely dependent on whether the
exported data is intended for direct consumption by an end user (in which case it is appropriate to export formatted
values and localized field titles), or for interface to some downstream computer system (in which case you probably want
raw, unformatted values and internal field names). If this property is not set, the following defaults apply:
exportClientData()
), localized field titles are usedexportPropertyIdentifier
- New exportPropertyIdentifier value. Default value is nullExportFormatting overview and related methods
public PropertyIdentifier getExportPropertyIdentifier()
PropertyIdentifier
to be used in the exported data. This essentially
means, should we export internal field names like "countryCode" or "EMPLOYEE_NO", or localized descriptive field titles
like "code du pays" or "Employee Number". This setting has a lot in common with exportRawValues
; both are largely dependent on whether the
exported data is intended for direct consumption by an end user (in which case it is appropriate to export formatted
values and localized field titles), or for interface to some downstream computer system (in which case you probably want
raw, unformatted values and internal field names). If this property is not set, the following defaults apply:
exportClientData()
), localized field titles are usedExportFormatting overview and related methods
public void setExportRawValues(java.lang.Boolean exportRawValues)
exportRawValues
is described in the Export Formatting
overview
.exportRawValues
- New exportRawValues value. Default value is nullExportFormatting overview and related methods
public java.lang.Boolean getExportRawValues()
exportRawValues
is described in the Export Formatting
overview
.ExportFormatting overview and related methods
public void setExportResults(java.lang.Boolean exportResults)
exportFilename
and
exportAs
respectively. When no exportFilename is provided, the
default is
Results.csv and the default value of exportAs is csv.
The export field-list can also be configured, see exportFields
. Formats
for exported date and numeric are controlled by several settings - see
ExportFormatting
for an overview.
Once the operation completes, exportDisplay
specifies
whether the exported
data should be downloaded to the file-system or displayed in a new window. The default value
of exportDisplay is "download" which displays the Save As dialog. See ExportDisplay
for more information.
You can configure the style of line-breaks
to use when
generating the output, the delimiter
to use when exporting
to CSV and the separator-character
to use in
field-titles when exporting to XML.
Additionally, you can output arbitrary text before and after the exported data by setting
exportHeader
and exportFooter
.
Note that for security reasons, an export initiated using dsRequest properties does not provide support for JSON format (see this post for more detail). However, you can use operationBinding.exportAs:"json" in a server-side .ds.xml file to force JSON export to be allowed.
As well as setting dsRequest.exportResults and related properties, exports can be initiated
in two other ways, via OperationBinding
s and via custom server code which sets
export-related properties on the DSResponse
. Both of those methods support exporting
to JSON format.
Format Examples XML format
<List> <Object> <id>10101</id> <displayName>Record 10101</displayName> </Object> </List>JSON Format
[ { id: 10101, displayName: "Record 10101" } ]CSV Format
id,displayName 10101,"Record 10101"
exportResults
- New exportResults value. Default value is falsepublic java.lang.Boolean getExportResults()
exportFilename
and
exportAs
respectively. When no exportFilename is provided, the
default is
Results.csv and the default value of exportAs is csv.
The export field-list can also be configured, see exportFields
. Formats
for exported date and numeric are controlled by several settings - see
ExportFormatting
for an overview.
Once the operation completes, exportDisplay
specifies
whether the exported
data should be downloaded to the file-system or displayed in a new window. The default value
of exportDisplay is "download" which displays the Save As dialog. See ExportDisplay
for more information.
You can configure the style of line-breaks
to use when
generating the output, the delimiter
to use when exporting
to CSV and the separator-character
to use in
field-titles when exporting to XML.
Additionally, you can output arbitrary text before and after the exported data by setting
exportHeader
and exportFooter
.
Note that for security reasons, an export initiated using dsRequest properties does not provide support for JSON format (see this post for more detail). However, you can use operationBinding.exportAs:"json" in a server-side .ds.xml file to force JSON export to be allowed.
As well as setting dsRequest.exportResults and related properties, exports can be initiated
in two other ways, via OperationBinding
s and via custom server code which sets
export-related properties on the DSResponse
. Both of those methods support exporting
to JSON format.
Format Examples XML format
<List> <Object> <id>10101</id> <displayName>Record 10101</displayName> </Object> </List>JSON Format
[ { id: 10101, displayName: "Record 10101" } ]CSV Format
id,displayName 10101,"Record 10101"
public void setExportShowHeaderSpanTitles(java.lang.Boolean exportShowHeaderSpanTitles)
ListGrid
that has headerSpans
, should headerSpans also be exported. See exportSpanTitleSeparator
for details of of what it means
to export headerSpans to different export targets. Note that exportPropertyIdentifier
controls whether field names or
titles are appended to the headerSpan titles (and used for fields without headerSpans).
exportShowHeaderSpanTitles
- New exportShowHeaderSpanTitles value. Default value is truepublic java.lang.Boolean getExportShowHeaderSpanTitles()
ListGrid
that has headerSpans
, should headerSpans also be exported. See exportSpanTitleSeparator
for details of of what it means
to export headerSpans to different export targets. Note that exportPropertyIdentifier
controls whether field names or
titles are appended to the headerSpan titles (and used for fields without headerSpans).
public void setExportSpanTitleSeparator(java.lang.String exportSpanTitleSeparator)
ListGrid
that has headerSpans
defined and exportShowHeaderSpanTitles
is true, the behavior is
dependent on the export type. Direct exports to Excel formats (both XLS and OOXML) place the headerSpans in merged
cells in the spreadsheet, giving the same visual effect as the original ListGrid. This is not possible with exports to
CSV format; instead, we alter the exported headers so that they contain the titles of the ancestor headerSpan(s). For example, if you had a field titled "Population" inside a headerSpan titled "National", nested inside another headerSpan titled "Demographics", that would result in the exported field being titled "Demographics - National - Population".
The exportSpanTitleSeparator
property allows you to override the separator string used
when constructing these amalgamated headers.
exportSpanTitleSeparator
- New exportSpanTitleSeparator value. Default value is " - "public java.lang.String getExportSpanTitleSeparator()
ListGrid
that has headerSpans
defined and exportShowHeaderSpanTitles
is true, the behavior is
dependent on the export type. Direct exports to Excel formats (both XLS and OOXML) place the headerSpans in merged
cells in the spreadsheet, giving the same visual effect as the original ListGrid. This is not possible with exports to
CSV format; instead, we alter the exported headers so that they contain the titles of the ancestor headerSpan(s). For example, if you had a field titled "Population" inside a headerSpan titled "National", nested inside another headerSpan titled "Demographics", that would result in the exported field being titled "Demographics - National - Population".
The exportSpanTitleSeparator
property allows you to override the separator string used
when constructing these amalgamated headers.
public void setExportStreaming(boolean exportStreaming)
SXSSFWorkbook
- is intended for write only and cannot usefully be read. You can
switch off Excel streaming altogether by setting "excel.useStreaming" false in server.properties
.
Note, OOXML is the only native Excel format that supports streaming: when exporting to the older XLS format, we build the spreadsheet in its entirety in server-side memory before writing it to disk or returning it to the client. This is unlikely to change: streaming the XLS format is impractical bcause it is a self-referential binary format, and in any case the problem of huge exports overflowing JVM memory is less likely to arise with XLS, because it is innately limited to 65535 rows.
exportStreaming
- New exportStreaming value. Default value is truepublic boolean getExportStreaming()
SXSSFWorkbook
- is intended for write only and cannot usefully be read. You can
switch off Excel streaming altogether by setting "excel.useStreaming" false in server.properties
.
Note, OOXML is the only native Excel format that supports streaming: when exporting to the older XLS format, we build the spreadsheet in its entirety in server-side memory before writing it to disk or returning it to the client. This is unlikely to change: streaming the XLS format is impractical bcause it is a self-referential binary format, and in any case the problem of huge exports overflowing JVM memory is less likely to arise with XLS, because it is innately limited to 65535 rows.
public void setExportTitleSeparatorChar(java.lang.String exportTitleSeparatorChar)
exportTitleSeparatorChar
- New exportTitleSeparatorChar value. Default value is nullpublic java.lang.String getExportTitleSeparatorChar()
public void setExportToClient(java.lang.Boolean exportToClient)
exportDisplay
. Note
that it is perfectly valid to specify both this property and exportToFilesystem
; in this case the data is both exported to
a file on the server filesystem, and downloaded to the client. If you specify neither property, the export
no-ops.
exportToClient
- New exportToClient value. Default value is truepublic java.lang.Boolean getExportToClient()
exportDisplay
. Note
that it is perfectly valid to specify both this property and exportToFilesystem
; in this case the data is both exported to
a file on the server filesystem, and downloaded to the client. If you specify neither property, the export
no-ops.
public void setExportToFilesystem(java.lang.Boolean exportToFilesystem)
exportFilename
and exportPath
. Note that filesystem exports are disabled by default,
for security reasons. To enable them, set export.allow.filesystem
to true in your
server.properties
file. If you enable filesystem exports, you should also consider setting a default
export path, as described in the exportPath
documentation.
Note that it is perfectly valid to specify both this property and exportToClient
; in this case the data is both exported to a file
on the server filesystem and downloaded to the client. If you specify neither property, the export
no-ops.
It is possible to redirect the filesystem export to make use of an OutputStream
you provide.
You use this when you want to make some use of the export document other than writing it to a disk file - for example,
attaching it to an email or writing it to a database table. See the server-side Javadocs for
DSRequest.setExportTo()
.
exportToFilesystem
- New exportToFilesystem value. Default value is falsepublic java.lang.Boolean getExportToFilesystem()
exportFilename
and exportPath
. Note that filesystem exports are disabled by default,
for security reasons. To enable them, set export.allow.filesystem
to true in your
server.properties
file. If you enable filesystem exports, you should also consider setting a default
export path, as described in the exportPath
documentation.
Note that it is perfectly valid to specify both this property and exportToClient
; in this case the data is both exported to a file
on the server filesystem and downloaded to the client. If you specify neither property, the export
no-ops.
It is possible to redirect the filesystem export to make use of an OutputStream
you provide.
You use this when you want to make some use of the export document other than writing it to a disk file - for example,
attaching it to an email or writing it to a database table. See the server-side Javadocs for
DSRequest.setExportTo()
.
public void setExportTZ(java.lang.String exportTZ)
ExportFormat
"xls" or "ooxml" only, timezone to use when
saving values from FieldType
"datetime" to the spreadsheet. This setting exists because MS Excel™ has no concept of providing a true datetime value that is timezone-independent and will display in the local timezone where the Excel program is launched. Instead, datetime values must be provided as a rendered string, which implies rendering in a particular timezone when the spreadsheet is generated.
exportTZ
can either be specified as a timezone offset in the same format expected by String (for example, "+01:00" for one hour
after GMT) or as the special constants "client" (meaning the current client display timezone) or "server" (meaning the
timezone of the server).
Default if unspecified is "server".
This setting does not affect fields of type "date"
or "time", which are timezone-independent values. See DateFormatAndStorage
for more
information on how Smart GWT handles date, time and datetime values.
All non-spreadsheet export formats always use
UTC. This setting also does not affect client-driven exports (DataSource.exportClientData()
), which always use client-side time.
exportTZ
- New exportTZ value. Default value is nullExportFormatting overview and related methods
public java.lang.String getExportTZ()
ExportFormat
"xls" or "ooxml" only, timezone to use when
saving values from FieldType
"datetime" to the spreadsheet. This setting exists because MS Excel™ has no concept of providing a true datetime value that is timezone-independent and will display in the local timezone where the Excel program is launched. Instead, datetime values must be provided as a rendered string, which implies rendering in a particular timezone when the spreadsheet is generated.
exportTZ
can either be specified as a timezone offset in the same format expected by String (for example, "+01:00" for one hour
after GMT) or as the special constants "client" (meaning the current client display timezone) or "server" (meaning the
timezone of the server).
Default if unspecified is "server".
This setting does not affect fields of type "date"
or "time", which are timezone-independent values. See DateFormatAndStorage
for more
information on how Smart GWT handles date, time and datetime values.
All non-spreadsheet export formats always use
UTC. This setting also does not affect client-driven exports (DataSource.exportClientData()
), which always use client-side time.
ExportFormatting overview and related methods
public void setExportValueFields(java.lang.Boolean exportValueFields)
For
exportClientData()
calls (client-driven), ordinarily
any fields that have a displayField
defined have
the value of that displayField exported, rather than the underlying value in the valueField
. If you set the exportValueFields
property, we export both the underlying value and the displayField value.
Again for exportClientData()
calls, any fields that have a valueMap
defined
ordinarily have the mapped value of the field exported, rather than the underlying data value. If you set the
exportValueFields
property, we instead export the underlying data value. Note, there is only one field in
this scenario, not a valueField
and a separate displayField
, so we export either the
underlying data value or the mapped value, not both as in the displayField
/valueField
case
described above.
For exportData()
calls
(server-driven), we ordinarily export the underlying data value of all fields. However, if you set the
exportValueFields
property explicitly to false
, any fields that have a DataSource-defined
valueMap
will have the mapped value exported instead. This
is similar to the client-side treatment of valueMaps, except that the defaults are reversed.
For
exportData()
calls, if we encounter a field that has an in-record displayField
declared in the DataSource, by default
we export both the underlying value and the display value, so you end up with two columns in the exported data for that
field. You can influence this by setting exportValueFields
explicitly: if set true
we export
only the value field, and if set false
we export only the display field. Note, the reason for the
similar but not identical behavior of this flag between exportData()
and exportClientData()
is
backwards compatibility.
exportValueFields
- New exportValueFields value. Default value is nullpublic java.lang.Boolean getExportValueFields()
For
exportClientData()
calls (client-driven), ordinarily
any fields that have a displayField
defined have
the value of that displayField exported, rather than the underlying value in the valueField
. If you set the exportValueFields
property, we export both the underlying value and the displayField value.
Again for exportClientData()
calls, any fields that have a valueMap
defined
ordinarily have the mapped value of the field exported, rather than the underlying data value. If you set the
exportValueFields
property, we instead export the underlying data value. Note, there is only one field in
this scenario, not a valueField
and a separate displayField
, so we export either the
underlying data value or the mapped value, not both as in the displayField
/valueField
case
described above.
For exportData()
calls
(server-driven), we ordinarily export the underlying data value of all fields. However, if you set the
exportValueFields
property explicitly to false
, any fields that have a DataSource-defined
valueMap
will have the mapped value exported instead. This
is similar to the client-side treatment of valueMaps, except that the defaults are reversed.
For
exportData()
calls, if we encounter a field that has an in-record displayField
declared in the DataSource, by default
we export both the underlying value and the display value, so you end up with two columns in the exported data for that
field. You can influence this by setting exportValueFields
explicitly: if set true
we export
only the value field, and if set false
we export only the display field. Note, the reason for the
similar but not identical behavior of this flag between exportData()
and exportClientData()
is
backwards compatibility.
public void setFieldValueExpressions(java.util.Map fieldValueExpressions)
Transaction Chaining
, with some restrictions for security
reasons:server-side Transaction Chaining settings
for a
field take precedence over this property, so server-defined rules cannot be overridden
from the clientfieldValueExpressions
is also a valid property on a server-side DSRequest,
and normal Velocity expressions are allowed in that case - see the server-side
Javadoc for DSRequest.setFieldValueExpressions()
). For client-originated
requests, only the following bindings are allowed - see the
Velocity overview
for details of what these values mean:DSRequestModifier.value
for
detailsVelocity overview
for details of $responseDatafieldValueExpression
are:
"startRow", "endRow", "totalRows" and "status"; this restriction does not apply to
server-driven fieldValueExpressions
. See the Velocity overview for
details of $responsesdeclarative security rules
apply:
if a
field is not valid for writing, its fieldValueExpression
will be ignored.
Again, this only applies to client-originated requests.fieldValueExpression
in
client-originated requests by setting a flag in your server.properties
file:
dataSource.allowClientFieldValueExpressions: false
fieldValueExpressions
- New fieldValueExpressions value. Default value is nullTransactionChaining overview and related methods
public java.util.Map getFieldValueExpressions()
Transaction Chaining
, with some restrictions for security
reasons:server-side Transaction Chaining settings
for a
field take precedence over this property, so server-defined rules cannot be overridden
from the clientfieldValueExpressions
is also a valid property on a server-side DSRequest,
and normal Velocity expressions are allowed in that case - see the server-side
Javadoc for DSRequest.setFieldValueExpressions()
). For client-originated
requests, only the following bindings are allowed - see the
Velocity overview
for details of what these values mean:DSRequestModifier.value
for
detailsVelocity overview
for details of $responseDatafieldValueExpression
are:
"startRow", "endRow", "totalRows" and "status"; this restriction does not apply to
server-driven fieldValueExpressions
. See the Velocity overview for
details of $responsesdeclarative security rules
apply:
if a
field is not valid for writing, its fieldValueExpression
will be ignored.
Again, this only applies to client-originated requests.fieldValueExpression
in
client-originated requests by setting a flag in your server.properties
file:
dataSource.allowClientFieldValueExpressions: false
TransactionChaining overview and related methods
public void setGenerateRelatedUpdates(java.lang.Boolean generateRelatedUpdates)
null
) then related updates
will be generated only for "add" and "update" operations. This property has to be explicitly set to true
to
generate related updates for "remove" operation. This functionality loads related objects from database thus
affecting operation performance. For "add" and "update" operations related objects are loaded anyway and performance
impact is minimal. Simple "remove" operation does not need to load related objects. Depending on database structure
performance impact can be significant if this property is set to true
. Note this feature works only
with Hibernate/JPA data sources, see JPA & Hibernate Relations
for instructions how to set up relations. Table below uses "country -> cities" sample data model.
Relation and Operation type | Loading complete related objects | Loading related IDs |
Many-to-one (cities -> country): ADD/UPDATE | If operation affected country, for
example new city added with existing countryId, then relatedUpdate is generated. Otherwise if city is added or updated
without countryId set, relatedUpdate is not generated. Note that if provided countryId does not exist, it is created. | Same as with complete related objects, except if provided countryId does not exist, then it is not created, but reset to NULL. |
Many-to-one (cities -> country): REMOVE | Removes record, depending on setting generates or not relatedUpdate for parent record. For example if city record is removed and countryId is sent to the server in remove request, then country record will be generated in relatedUpdates. | |
One-to-many (country -> cities): ADD/UPDATE | If add or update operation provides value sets for cities as well as for country, then cities are created/updated
if necessary and relatedUpdates are generated. Note that all fields in cities value sets can be sent to server. | Same as with complete related objects, except you can only sent primary key values for cities. |
One-to-many (country -> cities): REMOVE | Removes country, depending on setting returns or not relatedUpdates for the cities of removed country, which can be either REMOVE operations of all cities if cascade enabled, or UPDATE operations setting countryId=null to all cities if cascade is disabled |
Note that Many-to-Many works the same way as One-to-Many.
generateRelatedUpdates
- New generateRelatedUpdates value. Default value is nullpublic java.lang.Boolean getGenerateRelatedUpdates()
null
) then related updates
will be generated only for "add" and "update" operations. This property has to be explicitly set to true
to
generate related updates for "remove" operation. This functionality loads related objects from database thus
affecting operation performance. For "add" and "update" operations related objects are loaded anyway and performance
impact is minimal. Simple "remove" operation does not need to load related objects. Depending on database structure
performance impact can be significant if this property is set to true
. Note this feature works only
with Hibernate/JPA data sources, see JPA & Hibernate Relations
for instructions how to set up relations. Table below uses "country -> cities" sample data model.
Relation and Operation type | Loading complete related objects | Loading related IDs |
Many-to-one (cities -> country): ADD/UPDATE | If operation affected country, for
example new city added with existing countryId, then relatedUpdate is generated. Otherwise if city is added or updated
without countryId set, relatedUpdate is not generated. Note that if provided countryId does not exist, it is created. | Same as with complete related objects, except if provided countryId does not exist, then it is not created, but reset to NULL. |
Many-to-one (cities -> country): REMOVE | Removes record, depending on setting generates or not relatedUpdate for parent record. For example if city record is removed and countryId is sent to the server in remove request, then country record will be generated in relatedUpdates. | |
One-to-many (country -> cities): ADD/UPDATE | If add or update operation provides value sets for cities as well as for country, then cities are created/updated
if necessary and relatedUpdates are generated. Note that all fields in cities value sets can be sent to server. | Same as with complete related objects, except you can only sent primary key values for cities. |
One-to-many (country -> cities): REMOVE | Removes country, depending on setting returns or not relatedUpdates for the cities of removed country, which can be either REMOVE operations of all cities if cascade enabled, or UPDATE operations setting countryId=null to all cities if cascade is disabled |
Note that Many-to-Many works the same way as One-to-Many.
public void setGroupBy(java.lang.String... groupBy)
server-side summarization
.
Valid only for an operation of type "fetch". See the Server Summaries
overview
for details and examples of usage.
groupBy
- New groupBy value. Default value is nullsetSummaryFunctions(java.util.Map<java.lang.String, com.smartgwt.client.types.SummaryFunctionType>)
,
ServerSummaries overview and related methods
public java.lang.String[] getGroupBy()
server-side summarization
.
Valid only for an operation of type "fetch". See the Server Summaries
overview
for details and examples of usage.
getSummaryFunctions()
,
ServerSummaries overview and related methods
public void setHeaderData(java.util.Map headerData)
WSRequest.headerData
for
more information. SOAP headers typically contain request metadata such as a session id for authentication, and so
dsRequest.headerData
is typically populated by DataSource.transformRequest()
, or, for data that applies to every request sent to the server, by WebService.getHeaderData()
.
Note that this only applies to SOAP
headers. General HTTP headers for requests may be modified using RPCRequest.httpHeaders
.
headerData
- New headerData value. Default value is nullpublic java.util.Map getHeaderData()
WSRequest.headerData
for
more information. SOAP headers typically contain request metadata such as a session id for authentication, and so
dsRequest.headerData
is typically populated by DataSource.transformRequest()
, or, for data that applies to every request sent to the server, by WebService.getHeaderData()
.
Note that this only applies to SOAP
headers. General HTTP headers for requests may be modified using RPCRequest.httpHeaders
.
public void setKeepParentsOnFilter(java.lang.Boolean keepParentsOnFilter)
load data on demand
using data paging. When this flag is
set, a server fetch operation is expected to return all of the tree nodes that either match the provided criteria
or have one or more children that match the criteria. A ResultTree with fetchMode:"paged"
and with keepParentsOnFilter
enabled will automatically set
this property to true
on all DSRequests that it sends to the server.
Currently, no built-in server-side connectors (SQL, JPA, Hibernate) implement support for the keepParentsOnFilter flag.
keepParentsOnFilter
- New keepParentsOnFilter value. Default value is nullTreeDataBinding overview and related methods
public java.lang.Boolean getKeepParentsOnFilter()
load data on demand
using data paging. When this flag is
set, a server fetch operation is expected to return all of the tree nodes that either match the provided criteria
or have one or more children that match the criteria. A ResultTree with fetchMode:"paged"
and with keepParentsOnFilter
enabled will automatically set
this property to true
on all DSRequests that it sends to the server.
Currently, no built-in server-side connectors (SQL, JPA, Hibernate) implement support for the keepParentsOnFilter flag.
TreeDataBinding overview and related methods
public void setLineBreakStyle(java.lang.String lineBreakStyle)
LineBreakStyle
for more
information.lineBreakStyle
- New lineBreakStyle value. Default value is nullpublic java.lang.String getLineBreakStyle()
LineBreakStyle
for more
information.public void setOldValues(Record oldValues)
update
or remove
operation, the original values from the record that is being updated
or removed. oldValues
is automatically added to DSRequests submitted by DataBound Components. Available
on the server via DSRequest.getOldValues()
. The server can compare the oldValues
to the
most recent stored values in order to detect that the user was looking at stale values when the user submitted changes
(NOTE: this means of detecting concurrent edit is sometimes called "optimistic concurrency" or "long transactions").
In applications where a policy of "last update wins" is not appropriate when updating certain fields, special UI can
be shown for this case. For example, on detecting concurrent edit, the server may send back a special
dsResponse.status
code that the client application detects, offering the user a choice of proceeding with
the operation, discarding edits, or reconciling new and old values in a special interface.
oldValues
- New oldValues value. Default value is nullpublic Record getOldValues()
update
or remove
operation, the original values from the record that is being updated
or removed. oldValues
is automatically added to DSRequests submitted by DataBound Components. Available
on the server via DSRequest.getOldValues()
. The server can compare the oldValues
to the
most recent stored values in order to detect that the user was looking at stale values when the user submitted changes
(NOTE: this means of detecting concurrent edit is sometimes called "optimistic concurrency" or "long transactions").
In applications where a policy of "last update wins" is not appropriate when updating certain fields, special UI can
be shown for this case. For example, on detecting concurrent edit, the server may send back a special
dsResponse.status
code that the client application detects, offering the user a choice of proceeding with
the operation, discarding edits, or reconciling new and old values in a special interface.
public void setOperationId(java.lang.String operationId)
DataBoundComponent
sends a DSRequest, the dsRequest.operationId
will be automatically picked up from the fetchOperation
, addOperation
, etc properties of the
DataBoundComponent. The operationId
serves as an identifier that you can use to create variations on
the 4 basic DataSource operations that are used by different components in different parts of your application. For
example, you may be using a standard fetch
operation in one part of your application, however on another
screen you want to perform a fetch
operation on the same DataSource but interpret search criteria
differently (eg full text search).
If you declare more than one OperationBinding
for the same OperationBinding.operationType
, you can
specify an operationId
on the
operationBinding
which will cause that operationBinding to be used for dsRequests containing a matching
operationId
. This allows all the possible settings of an operationBinding
, including wsOperation
or DMI
settings, to be switched on a per-component or per-request basis.
For example, by setting the
fetchOperation
on a particular ListGrid, you could cause it to invoke a different server method via DMI,
different dataURL
or different web service operation
.
The operationId
can
also be directly received by the server in order to affect behavior. When using the Smart GWT Server,
operationId
can be accessed via dsRequest.getOperationId(). The RestDataSource
will also send the operationId
to the server as part of the request metadata
.
Note that if you manually invoke
a DataSource operation, you can also specify operationId
via the requestProperties
parameter.
Note that the operationId
has special significance in
terms of whether two DSRequests are considered equivalent for caching and synchronization purposes - see DsRequestEquivalence
.
operationId
- New operationId value. Default value is nullOperations overview and related methods
public java.lang.String getOperationId()
DataBoundComponent
sends a DSRequest, the dsRequest.operationId
will be automatically picked up from the fetchOperation
, addOperation
, etc properties of the
DataBoundComponent. The operationId
serves as an identifier that you can use to create variations on
the 4 basic DataSource operations that are used by different components in different parts of your application. For
example, you may be using a standard fetch
operation in one part of your application, however on another
screen you want to perform a fetch
operation on the same DataSource but interpret search criteria
differently (eg full text search).
If you declare more than one OperationBinding
for the same OperationBinding.operationType
, you can
specify an operationId
on the
operationBinding
which will cause that operationBinding to be used for dsRequests containing a matching
operationId
. This allows all the possible settings of an operationBinding
, including wsOperation
or DMI
settings, to be switched on a per-component or per-request basis.
For example, by setting the
fetchOperation
on a particular ListGrid, you could cause it to invoke a different server method via DMI,
different dataURL
or different web service operation
.
The operationId
can
also be directly received by the server in order to affect behavior. When using the Smart GWT Server,
operationId
can be accessed via dsRequest.getOperationId(). The RestDataSource
will also send the operationId
to the server as part of the request metadata
.
Note that if you manually invoke
a DataSource operation, you can also specify operationId
via the requestProperties
parameter.
Note that the operationId
has special significance in
terms of whether two DSRequests are considered equivalent for caching and synchronization purposes - see DsRequestEquivalence
.
Operations overview and related methods
public void setOperationType(DSOperationType operationType)
This property is generally
automatically populated, for example when calling fetchData()
on a DataSource or DataBound component the
operationType is automatically set to "fetch". Note that "custom" operations are never generated automatically, they
are always fired by your code.
operationType
- New operationType value. Default value is nullpublic DSOperationType getOperationType()
This property is generally
automatically populated, for example when calling fetchData()
on a DataSource or DataBound component the
operationType is automatically set to "fetch". Note that "custom" operations are never generated automatically, they
are always fired by your code.
public void setOutputs(java.lang.String outputs)
"foo, bar, baz"
).
You can use this property to indicate to the server that you are only interested in a subset of the fields that would
normally be returned. Note that you cannot use this property to request a superset of the fields that would
normally be returned, because that would be a security hole. It is possible to configure individual OperationBinding
s to return extra fields, but this must be done in the server's DataSource
descriptor; it cannot be altered on the fly from the client side.
outputs
- New outputs value. Default value is nullOperationBinding.outputs
,
setAdditionalOutputs(java.lang.String)
public java.lang.String getOutputs()
"foo, bar, baz"
).
You can use this property to indicate to the server that you are only interested in a subset of the fields that would
normally be returned. Note that you cannot use this property to request a superset of the fields that would
normally be returned, because that would be a security hole. It is possible to configure individual OperationBinding
s to return extra fields, but this must be done in the server's DataSource
descriptor; it cannot be altered on the fly from the client side.
OperationBinding.outputs
,
getAdditionalOutputs()
public TreeNode getParentNode()
load
data on demand
with web services, parentNode
is automatically set in "fetch" DSRequests issued by a
databound TreeGrid that is loading children for that parentNode
. This is sometimes needed if a web
service requires that additional properties beyond the ID of the parentNode must be passed in order to accomplished
level-by-level loading. A custom implementation of DataSource.transformRequest()
can access dsRequest.parentNode and add any such properties to data
.
parentNode
will also be automatically set by a
TreeGrid performing databound reparenting of nodes, as implemented by TreeGrid.folderDrop()
.
This property can only be read. There is no meaning to setting this property yourself.
public void setPendingAdd(java.lang.Boolean pendingAdd)
DynamicForm.validateOnChange
is in force.pendingAdd
- New pendingAdd value. Default value is nullpublic java.lang.Boolean getPendingAdd()
DynamicForm.validateOnChange
is in force.public void setProgressiveLoading(java.lang.Boolean progressiveLoading)
progressive loading mode
for this particular
request, overriding the OperationBinding- and DataSource-level settings. This setting overrides the progressiveLoadingThreshold
setting as well,
meaning that if DSRequest.progressiveLoading
is explicitly set to false
Smart GWT won't
automatically switch to loading data progressively even if DataSource.progressiveLoadingThreshold
is
exceeded. Note that this setting applies only to fetch requests - it has no effect if specified on any other kind of request.
progressiveLoading
- New progressiveLoading value. Default value is nullDataSource.setProgressiveLoading(java.lang.Boolean)
,
DataSource.progressiveLoadingThreshold
,
OperationBinding.progressiveLoading
,
ProgressiveLoading overview and related methods
public java.lang.Boolean getProgressiveLoading()
progressive loading mode
for this particular
request, overriding the OperationBinding- and DataSource-level settings. This setting overrides the progressiveLoadingThreshold
setting as well,
meaning that if DSRequest.progressiveLoading
is explicitly set to false
Smart GWT won't
automatically switch to loading data progressively even if DataSource.progressiveLoadingThreshold
is
exceeded. Note that this setting applies only to fetch requests - it has no effect if specified on any other kind of request.
DataSource.getProgressiveLoading()
,
DataSource.progressiveLoadingThreshold
,
OperationBinding.progressiveLoading
,
ProgressiveLoading overview and related methods
public java.lang.String getRequestId()
"clientCustom" dataProtocol
.public ResultSet getResultSet()
resultSet
property. This property can only be read. There is no meaning to setting this property yourself.
public ResultTree getResultTree()
load
data on demand
with web services, the ResultTree that issued this "fetch" DSRequest is automatically made available as
the resultTree
property. This property can only be read. There is no meaning to setting this property yourself.
public void setShouldUseCache(java.lang.Boolean shouldUseCache)
DataSource.cacheAllData
, DataSource.cacheAllOperationId
and DataSource.cacheAcrossOperationIds
for caching management for all requests of a dataSource.shouldUseCache
- New shouldUseCache value. Default value is nullpublic java.lang.Boolean getShouldUseCache()
DataSource.cacheAllData
, DataSource.cacheAllOperationId
and DataSource.cacheAcrossOperationIds
for caching management for all requests of a dataSource.public void setStartRow(java.lang.Integer startRow)
Note that startRow and endRow are zero-based, inclusive at the beginning and exclusive at the end (like substring), so startRow: 0, endRow: 1 is a request for the first record.
startRow
- New startRow value. Default value is nullpublic java.lang.Integer getStartRow()
Note that startRow and endRow are zero-based, inclusive at the beginning and exclusive at the end (like substring), so startRow: 0, endRow: 1 is a request for the first record.
public void setStreamResults(boolean streamResults)
Although this
property can be set without any particular concerns (small datasets can be streamed just as readily as large ones),
bear in mind that although streaming enables the processing of very large datasets, processing and downloading very
large datasets in a normal client/server flow will very rarely give an acceptable user experience. Streaming is of
more practical use in a batch setting - for example, a disconnected export
.
Note that streaming requires specific server
support; of Smart GWT's built-in DataSource types, only SQLDataSource
is able to stream results. This
property is ignored by other DataSource types. If you wish to implement the necessary server-side behavior to support
streaming with a custom DataSource, see the the server-side Javadocs for DSResponse.hasNextRecord()
and
DSResponse.nextRecordAsObject()
.
See also the server-side documentation for DSResponse
,
SQLDataSource
and StreamingResponseIterator
.
Note, that streaming results does not support
fields with "concat" summary function
on non-Oracle databases.
Such fields will be skipped.
streamResults
- New streamResults value. Default value is falsepublic boolean getStreamResults()
Although this
property can be set without any particular concerns (small datasets can be streamed just as readily as large ones),
bear in mind that although streaming enables the processing of very large datasets, processing and downloading very
large datasets in a normal client/server flow will very rarely give an acceptable user experience. Streaming is of
more practical use in a batch setting - for example, a disconnected export
.
Note that streaming requires specific server
support; of Smart GWT's built-in DataSource types, only SQLDataSource
is able to stream results. This
property is ignored by other DataSource types. If you wish to implement the necessary server-side behavior to support
streaming with a custom DataSource, see the the server-side Javadocs for DSResponse.hasNextRecord()
and
DSResponse.nextRecordAsObject()
.
See also the server-side documentation for DSResponse
,
SQLDataSource
and StreamingResponseIterator
.
Note, that streaming results does not support
fields with "concat" summary function
on non-Oracle databases.
Such fields will be skipped.
public void setTextMatchStyle(TextMatchStyle textMatchStyle)
textMatchStyle
settings except "exactCase" are case-insensitive; use AdvancedCriteria
for greater control over matching. This property defaults to the value of
DataSource.defaultTextMatchStyle
if it is not
explicitly provided on the DSRequest
. Note, however, that DSRequests issued by ListGrid
s and other components
will generally have a setting for textMatchStyle on the component itself (see ListGrid.autoFetchTextMatchStyle
, for example).
This setting is respected by the built-in server-side connectors for SQL, JPA and Hibernate. A custom server-side
DataSource implementation should generally respect this flag as well, or server-side filtering will not match
client-side filtering, which will require disabling
client-side filtering
, a huge performance loss.
textMatchStyle
- New textMatchStyle value. Default value is nullpublic TextMatchStyle getTextMatchStyle()
textMatchStyle
settings except "exactCase" are case-insensitive; use AdvancedCriteria
for greater control over matching. This property defaults to the value of
DataSource.defaultTextMatchStyle
if it is not
explicitly provided on the DSRequest
. Note, however, that DSRequests issued by ListGrid
s and other components
will generally have a setting for textMatchStyle on the component itself (see ListGrid.autoFetchTextMatchStyle
, for example).
This setting is respected by the built-in server-side connectors for SQL, JPA and Hibernate. A custom server-side
DataSource implementation should generally respect this flag as well, or server-side filtering will not match
client-side filtering, which will require disabling
client-side filtering
, a huge performance loss.
public void setUseFlatFields(java.lang.Boolean useFlatFields)
useFlatFields
is set for a request to be sent to a WSDL web service, when
creating the input XML message to send to the web service, properties in
request.data
will be used as the values for XML elements of the same
name, at
any level of nesting.
useFlatFields
allows you to ignore gratuitous XML message structure, such as
extra levels of nested elements, and provides some insulation against changes in the
required structure of the input message.
For example, given this input message:
<FindServices> <searchFor>search text</searchFor> <Options> <caseSensitive>false</caseSensitive> </Options> <IncludeInSearch> <serviceName>true</serviceName> <documentation>true</documentation> <keywords>true</keywords> </IncludeInSearch> </FindServices>If
useFlatFields
were not set, in order to fill out this message
correctly, request.data
would need to be:
{ searchFor: "search text", Options : { caseSensitive: false, }, IncludeInSearch : { serviceName: true, documentation : true, keywords : true } }However if useFlatFields were set,
request.data
could be just:
{ searchFor: "search text", caseSensitive: false, serviceName: true, documentation : true, keywords : true }
useFlatFields
is often set when the input data comes from a DynamicForm
to avoid the cumbersome and fragile process of mapping input fields to an XML structure.
OperationBinding.useFlatFields
can also be set to
cause all dsRequests of a
particular type to useFlatFields
automatically.
For DataBoundComponents
,
component.useFlatFields
can be set use
"flattened"
binding to fields of a WSDL message or XML Schema.
Note that useFlatFields
is not generally recommended for use with XML input
messages where multiple simple type fields exist with the same name, however if used in this
way, the first field to use a given name wins. "first" means the first field encountered in a
depth first search. "wins" means only the first field will be populated in the generated
XML message.
useFlatFields
- New useFlatFields value. Default value is nullpublic java.lang.Boolean getUseFlatFields()
useFlatFields
is set for a request to be sent to a WSDL web service, when
creating the input XML message to send to the web service, properties in
request.data
will be used as the values for XML elements of the same
name, at
any level of nesting.
useFlatFields
allows you to ignore gratuitous XML message structure, such as
extra levels of nested elements, and provides some insulation against changes in the
required structure of the input message.
For example, given this input message:
<FindServices> <searchFor>search text</searchFor> <Options> <caseSensitive>false</caseSensitive> </Options> <IncludeInSearch> <serviceName>true</serviceName> <documentation>true</documentation> <keywords>true</keywords> </IncludeInSearch> </FindServices>If
useFlatFields
were not set, in order to fill out this message
correctly, request.data
would need to be:
{ searchFor: "search text", Options : { caseSensitive: false, }, IncludeInSearch : { serviceName: true, documentation : true, keywords : true } }However if useFlatFields were set,
request.data
could be just:
{ searchFor: "search text", caseSensitive: false, serviceName: true, documentation : true, keywords : true }
useFlatFields
is often set when the input data comes from a DynamicForm
to avoid the cumbersome and fragile process of mapping input fields to an XML structure.
OperationBinding.useFlatFields
can also be set to
cause all dsRequests of a
particular type to useFlatFields
automatically.
For DataBoundComponents
,
component.useFlatFields
can be set use
"flattened"
binding to fields of a WSDL message or XML Schema.
Note that useFlatFields
is not generally recommended for use with XML input
messages where multiple simple type fields exist with the same name, however if used in this
way, the first field to use a given name wins. "first" means the first field encountered in a
depth first search. "wins" means only the first field will be populated in the generated
XML message.
public void setUseFlatHeaderFields(java.lang.Boolean useFlatHeaderFields)
useFlatFields
XML serialization behavior to be
used for all soap headers in the request. See also headerData
.useFlatHeaderFields
- New useFlatHeaderFields value. Default value is nullpublic java.lang.Boolean getUseFlatHeaderFields()
useFlatFields
XML serialization behavior to be
used for all soap headers in the request. See also headerData
.public void setUseStrictJSON(java.lang.Boolean useStrictJSON)
Only applies to requests sent a server with DataSource.dataFormat
set to "json" or "iscServer".
setUseStrictJSON
in class RPCRequest
useStrictJSON
- New useStrictJSON value. Default value is nullsetUseStrictJSON(java.lang.Boolean)
public java.lang.Boolean getUseStrictJSON()
Only applies to requests sent a server with DataSource.dataFormat
set to "json" or "iscServer".
getUseStrictJSON
in class RPCRequest
getUseStrictJSON()
public void setValidationMode(ValidationMode validationMode)
validationMode
- New validationMode value. Default value is "full"public ValidationMode getValidationMode()
public void setAttribute(java.lang.String property, java.lang.Object value)
DataClass.getAttributeAsObject(String)
in order to retrieve them.
These attributes are available for client-side use only - these attributes are not transmitted to the server.
Do not use setAttribute() to set any attribute for which there is a dedicated setter (do not setAttribute("data", data) for example).
If you are looking for a way to send additional data to the server, read
DsRequestEquivalence
for the best approach.
setAttribute
in class DataClass
property
- the attribute namevalue
- the attribute value.public void setParams(java.util.Map params)
RPCRequest
Array-valued parameters will be submitted as multiple
instances of the same parameter, similar to an HTML form with a multi-select (?paramName=value1¶mName=value2
...), accessible as getParameterValues(paramName) in Java Servlets. Any non-atomic type, such as an Object, will be
serialized to JSON by the JSONEncoder
. If this isn't desirable, serialize the data in advance so that the value
provided in rpcRequest.params
is a String.
Note that this API is primarily used in combination with
useSimpleHttp
- when contacting the Smart GWT Server, use
data
instead, which provides full JavaScript <-> Java
translation of arbitrary structures. rpcRequest.params
can also be used with the Smart GWT Server, where it
provides an an opportunity to send additional data aside from the main data
payload. This is useful for adding data to DataSource requests which will be kept separate from the automatically
sent DataSource data, or for making parts of the request visible in the URL for HTTP-level logging or layer 4 switches.
Note that in contrast to data
object, the data in
rpcRequest.params
is not deserialized by the Smart GWT server, and all values arrive on the server as
String type (like HTTP parameters always do).
Note: The params are submitted once per http transaction. If you
are using request queuing
to bundle multiple RPCRequests or
DSRequests into a single HTTP turnaround, the params from the various RPCRequests will be merged, with the later-queued
transactions winning on parameter name collisions. A warning will be logged in the Developer Console if multiple
RPCRequests specified params.
setParams
in class RPCRequest
params
- New params value. Default value is nullpublic final void setCallback(DSCallback callback)
public void setSortBy(SortSpecifier[] sortSpecifiers)
sortSpecifiers
- Default value is nullpublic SortSpecifier[] getSortBy()
public void setSummaryFunctions(java.util.Map<java.lang.String,SummaryFunctionType> summaryFunctions)
Valid only for an operation of type "fetch". See the Server Summaries overview in the client-side documentation for details and examples of usage.
NOTE: this feature is supported only in Power Edition or above, and only when using the built-in SQL, JPA or Hibernate connectors.
summaryFunctions
- Map<String,SummaryFunction>
with field names as keys and summary functions as values.DSRequest.setGroupBy(String[])
public java.util.Map<java.lang.String,SummaryFunctionType> getSummaryFunctions()
Valid only for an operation of type "fetch". See the Server Summaries overview in the client-side documentation for details and examples of usage.
NOTE: this feature is supported only in Power Edition or above, and only when using the built-in SQL, JPA or Hibernate connectors.
Map<String,SummaryFunction>
with field names as keys and summary functions as values.DSRequest.getGroupBy()
public void setOldValues(java.util.Map oldValues)
update
or remove
operation, the original values from the record that is being updated
or removed. oldValues
is automatically added to DSRequests submitted by DataBound Components. Available
on the server via DSRequest.getOldValues()
. The server can compare the oldValues
to the
most recent stored values in order to detect that the user was looking at stale values when the user submitted changes
(NOTE: this means of detecting concurrent edit is sometimes called "optimistic concurrency" or "long transactions").
In applications where a policy of "last update wins" is not appropriate when updating certain fields, special UI can
be shown for this case. For example, on detecting concurrent edit, the server may send back a special
dsResponse.status
code that the client application detects, offering the user a choice of proceeding with
the operation, discarding edits, or reconciling new and old values in a special interface.
oldValues
- oldValues Default value is nullpublic void setOldValues(com.google.gwt.core.client.JavaScriptObject oldValues)
update
or remove
operation, the original values from the record that is being updated
or removed. oldValues
is automatically added to DSRequests submitted by DataBound Components. Available
on the server via DSRequest.getOldValues()
. The server can compare the oldValues
to the
most recent stored values in order to detect that the user was looking at stale values when the user submitted changes
(NOTE: this means of detecting concurrent edit is sometimes called "optimistic concurrency" or "long transactions").
In applications where a policy of "last update wins" is not appropriate when updating certain fields, special UI can
be shown for this case. For example, on detecting concurrent edit, the server may send back a special
dsResponse.status
code that the client application detects, offering the user a choice of proceeding with
the operation, discarding edits, or reconciling new and old values in a special interface.
oldValues
- oldValues Default value is nullpublic Criteria getCriteria() throws java.lang.IllegalStateException
Note : This method should only be called during a FETCH operation
java.lang.IllegalStateException
- if called for a non-fetch operationpublic void setSkinName(java.lang.String skinName)
skinName
- the name of the selected skin.public void setCriteria(Criteria criteria)
If you need to do a remove with criteria rather than a primary key, the recommended
approach is to do it via a
custom operation
.
so the intent is clear. You can also do it as a remove, but just use
DSRequest.oldValues
as the source
for whatever criteria values you need. That covers everything except
AdvancedCriteria
.
criteria
- the criteria to store.