Operator (Smart GWT EE API 13.0p (2026-01-27))

java.lang.Object
- com.smartgwt.client.docs.serverds.Operator

```
public class Operator
extends java.lang.Object
```
Specification of an operator for use in filtering, for example "equals".
This class is not meant to be created and used, it is actually documentation of settings allowed in a DataSource descriptor (.ds.xml file), for use with Smart GWT Pro Edition and above. See com.smartgwt.client.docs.serverds for how to use this documentation.
Use with DataSource.addSearchOperator() to define custom filtering behaviors for client-side filtering.

Field Summary

Fields
Modifier and Type	Field and Description
`FormItem`	`editorType` For an operator with `valueType`:"custom", indicates what kind of FormItem to use to provide a user interface for creating a valid `Criterion`.
`FieldType[]`	`fieldTypes` List of types that this Operator is valid for.
`boolean`	`hidden` Whether this operator should be offered to users by default in interfaces such as the `FilterBuilder`.
`OperatorId`	`ID` Unique id for an operator, which appears within `AdvancedCriteria` as the `Operator` property.
`boolean`	`requiresServer` Whether this operator needs to be executed on the server side.
`java.lang.String`	`symbol` The text use when using this operator as an `expression` in a FormItem.
`java.lang.String`	`textTitle` User-visible title for this operator when used with text-based fields - eg, "equals (match case)" rather than just "equals".
`Identifier`	`textTitleProperty` Name of a property on the Operators class that provides the title for this operator when used with text-based fields.
`java.lang.String`	`title` User-visible title for this operator, such as "doesn't contain".
`Identifier`	`titleProperty` Name of a property on the Operators class that provides the title for this operator.
`java.lang.String`	`usageHint` Usage hint text specific to this Operator and shown, for example, in the hover-text of `ListGrid` `filterEditor` fields.
`OperatorValueType`	`valueType` Indicates the kind of value expected in a `Criterion` that uses this operator.

Constructor Summary

Constructors
Constructor and Description

Operator()

Constructors
Constructor and Description
`Operator()`

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - hidden
```
public boolean hidden
```
    Whether this operator should be offered to users by default in interfaces such as the FilterBuilder.
    Setting hidden:true means the operator can be used in a programmatic search, for example, by calling ResultSet.setCriteria(), but does not appear in the UI.
    Default value is false
    
    See Also:
    
    AdvancedFilter overview and related methods
  - fieldTypes
```
public FieldType[] fieldTypes
```
    List of types that this Operator is valid for.
    If omitted, the operator is assumed to be valid for all FieldTypes unless a list of FieldTypes is passed to DataSource.addSearchOperator().
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - titleProperty
```
public Identifier titleProperty
```
    Name of a property on the Operators class that provides the title for this operator.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - ID
```
public OperatorId ID
```
    Unique id for an operator, which appears within AdvancedCriteria as the Operator property.
    A list of built-in identifiers is here.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - textTitle
```
public java.lang.String textTitle
```
    User-visible title for this operator when used with text-based fields - eg, "equals (match case)" rather than just "equals".
    To simplify internationalization by separating titles from operator code, you can use specify textTitleProperty instead of this property.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - title
```
public java.lang.String title
```
    User-visible title for this operator, such as "doesn't contain".
    To simplify internationalization by separating titles from operator code, you can use specify titleProperty instead of this property.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - editorType
```
public FormItem editorType
```
    For an operator with valueType:"custom", indicates what kind of FormItem to use to provide a user interface for creating a valid Criterion. The default of null means an ordinary TextItem is fine.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - symbol
```
public java.lang.String symbol
```
    The text use when using this operator as an expression in a FormItem.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - requiresServer
```
public boolean requiresServer
```
    Whether this operator needs to be executed on the server side.
    This implies that if a Criterion using this operator is either introduced into criteria or is changed, the server will need to be contacted to perform filtering.
    Default value is false
    
    See Also:
    
    AdvancedFilter overview and related methods
  - valueType
```
public OperatorValueType valueType
```
    Indicates the kind of value expected in a Criterion that uses this operator. OperatorValueType lists possibilities.
    The default of null is equivalent to "fieldType", indicating that Criterion.value is expected to contain a value of the same type as the field indicated by Criterion.fieldName.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - usageHint
```
public java.lang.String usageHint
```
    Usage hint text specific to this Operator and shown, for example, in the hover-text of ListGrid filterEditor fields.
    If unset, the default for all operators, this value is derived from an attribute on the Operators class, in the format [operator.valueType]UsageHint - for example, the "between" operator uses valueRangeUsageHint.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
  - textTitleProperty
```
public Identifier textTitleProperty
```
    Name of a property on the Operators class that provides the title for this operator when used with text-based fields.
    Default value is null
    
    See Also:
    
    AdvancedFilter overview and related methods
- Constructor Detail
  - Operator
```
public Operator()
```

Class Operator

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

hidden

fieldTypes

titleProperty

ID

textTitle

title

editorType

symbol

requiresServer

valueType

usageHint

textTitleProperty

Constructor Detail

Operator