com.smartgwt.client.data

Class Record

java.lang.Object

com.smartgwt.client.core.JsObject

com.smartgwt.client.core.DataClass

com.smartgwt.client.core.RefDataClass

com.smartgwt.client.data.Record

Direct Known Subclasses:

CalendarEvent, DetailViewerRecord, ListGridRecord

public class Record
extends RefDataClass

A Record contains attributes that are displayed and edited by a DataBoundComponent.

DataBoundComponents have a concept of named fields, where values for each field are found under the same-named attribute in a Record.

The concept of working with Records is common to all DataBoundComponents, although individual DataBoundComponents may work with singular records (DynamicForm) or may work with lists (ListGrid), trees (TreeGrid), or cubes (CubeGrid) of records.

A Record is always the same type of Java object regardless of how the record is loaded (static data, java server, XML web service, etc). However, individual DataBoundComponents may also look for special attributes on Records which control styling or behavior. For convenience, there are subclasses of Record with type-safe setters for such attributes (such as ListGrid.setRecordEditProperty(String)). In reality, all such subclasses are wrappers over the same underlying data object, and you can convert to whichever wrapper is most convenient via:

    new ListGridRecord(recordInstance.getJsObj());
 

You can also create your own subclass of Record with type-specific getters and setters, however, if you do so, you should store values via setAttribute() and retrieve them via getAttribute() rather than keeping values as normal Java properties. Only attributes will be visible to DataBoundComponents, ordinary Java properties will not.

Note that directly changing an attribute of a Record via setAttribute() will not notify any DataBoundComponents that the Record has changed or cause any kind of persistence operation to occur. Instead, use component-specific methods such as DynamicForm.setValue() or ListGrid.setEditValue() to explicitly tell the components about a change that should be saved.

Field Summary

Fields inherited from class com.smartgwt.client.core.RefDataClass

id

Fields inherited from class com.smartgwt.client.core.JsObject

jsObj

Constructor Summary

Constructors

Constructor and Description
Record()
Record(com.google.gwt.core.client.JavaScriptObject jsObj)
Record(java.util.Map recordProperties)

Method Summary

Methods

Modifier and Type	Method and Description
static Record[]	convertToRecordArray(com.google.gwt.core.client.JavaScriptObject nativeArray)
static Record	copyAttributes(Record record, java.lang.String... properties) Creates a shallow copy of record containing its attributes for properties named in properties.
static void	copyAttributesInto(Record destRecord, Record record, java.lang.String... properties) Shallow copies the attributes of record to destRecord for properties named in properties.
Record[]	getAttributeAsRecordArray(java.lang.String property) Returns the nested structure as Record array.
RecordList	getAttributeAsRecordList(java.lang.String property) Returns the nested structure as a RecordList.
static Record	getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
static boolean	isARecord(java.lang.Object obj)
java.util.Map	toMap() Convert this record to a Map.

Methods inherited from class com.smartgwt.client.core.RefDataClass

getRef, getRef, internalSetID

Methods inherited from class com.smartgwt.client.core.DataClass

doAddHandler, fireEvent, getAttribute, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsDoubleArray, getAttributeAsFloat, getAttributeAsInt, getAttributeAsIntArray, getAttributeAsJavaScriptObject, getAttributeAsLong, getAttributeAsMap, getAttributeAsObject, getAttributeAsRecord, getAttributeAsString, getAttributeAsStringArray, getAttributes, getHandlerCount, getJsObj, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttributeAsJavaObject

Methods inherited from class com.smartgwt.client.core.JsObject

equals, hashCode, isCreated, setJsObj

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Record

public Record()

Record

public Record(com.google.gwt.core.client.JavaScriptObject jsObj)

Record

public Record(java.util.Map recordProperties)

Method Detail

isARecord

public static boolean isARecord(java.lang.Object obj)

copyAttributes

public static Record copyAttributes(Record record,
                    java.lang.String... properties)

Creates a shallow copy of record containing its attributes for properties named in properties.

Parameters:

record - the record to copy attributes from.

properties - an array of properties to copy.

Returns:

a copy of record containing only the attributes for properties named in properties.

copyAttributesInto

public static void copyAttributesInto(Record destRecord,
                      Record record,
                      java.lang.String... properties)

Shallow copies the attributes of record to destRecord for properties named in properties.

Parameters:

destRecord - (out) destination record into which attributes are copied.

record - the record to copy attributes from.

properties - an array of properties to copy.

getOrCreateRef

public static Record getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)

getAttributeAsRecordArray

public Record[] getAttributeAsRecordArray(java.lang.String property)

Returns the nested structure as Record array.

Parameters:

property - the record property

Returns:

array of records

getAttributeAsRecordList

public RecordList getAttributeAsRecordList(java.lang.String property)

Returns the nested structure as a RecordList.

Parameters:

property - the record property

Returns:

the RecordList

convertToRecordArray

public static Record[] convertToRecordArray(com.google.gwt.core.client.JavaScriptObject nativeArray)

toMap

public java.util.Map toMap()

Convert this record to a Map. This is a recursive conversion so if an attribute on this record is set to another Record instance it will also be converted to a Map.

Returns: