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DataModel (JBoss Seam API Documentation) - JBoss Seam 1.2.1 API 英文版文档

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org.jboss.seam.annotations.datamodel
Annotation Type DataModel

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@Target(value={FIELD,METHOD})
@Retention(value=RUNTIME)
@Documented
@DataBinderClass(value=DataModelBinder.class)
public @interface DataModel

Outjects a collection to the same scope as the owning component (or to the EVENT scope in the case of a stateless component), after wrapping as a JSF DataModel (a List as a ListDataModel, a Map as a MapDataModel, a Set as a SetDataModel, an array as an ArrayDataModel). Note that the List, Map, Set or array will be re-wrapped and re-outjected each time the current component value is different to the value held by the context variable as determined by calling equals() on the underlying collection.

Author:

Gavin King

See Also:

ListDataModel, MapDataModel, SetDataModel, ArrayDataModel

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Optional Element Summary
ScopeType	scope           Specifies the scope to outject the DataModel to.
String	value           The context variable name.

 

value

public abstract String value

The context variable name. Defaults to the name of the annotated field or getter method.

Default:

""

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scope

public abstract ScopeType scope

Specifies the scope to outject the DataModel to. If no scope is explicitly specified, the scope of the component with the @DataModel attribute is used. But if the component scope is STATELESS, the EVENT scope is used.

Returns:

ScopeType.UNSPECIFIED or ScopeType.PAGE

Default:

UNSPECIFIED

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