Module jakarta.faces

Package jakarta.faces.view.facelets

Class TagHandlerDelegate

java.lang.Object

jakarta.faces.view.facelets.TagHandlerDelegate

Direct Known Subclasses:

ComponentTagHandlerDelegateImpl, ConverterTagHandlerDelegateImpl, ValidatorTagHandlerDelegateImpl

public abstract class TagHandlerDelegate
extends Object

Abstract class that defines methods relating to helping tag handler instances. This abstraction enables implementation details to be hidden by the Jakarta Faces implementation while still allowing concrete classes to be defined for extension by users.

Since:

2.0

Constructor Summary

Constructors

Constructor	Description
TagHandlerDelegate()

Method Summary

Modifier and Type	Method	Description
abstract void	apply(FaceletContext ctx, UIComponent comp)	Called by classes that implement FaceletHandler in their implementation of apply().
abstract MetaRuleset	createMetaRuleset(Class type)	Return a MetaRuleset particular to this kind of tag handler.

Methods inherited from class java.lang.Object

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

Constructor Details

TagHandlerDelegate

public TagHandlerDelegate()

Method Details

createMetaRuleset

public abstract MetaRuleset createMetaRuleset(Class type)

Return a MetaRuleset particular to this kind of tag handler. Called from classes that implement MetaTagHandler.

Parameters:

type - the Class for which the MetaRuleset must be created.

Returns:

a MetaRuleset particular to this kind of tag handler.

Since:

2.0

apply

public abstract void apply(FaceletContext ctx,
 UIComponent comp)
                    throws IOException

Called by classes that implement FaceletHandler in their implementation of apply().

If the argument comp is new to the view, for each tag attribute declared to be in the pass through attribute namespace, set the name and value of the attribute into the pass through attributes map of the component. See UIComponent.getPassThroughAttributes(boolean). See the VDLDocs for the namespace URI of the pass through attribute namespace. Attributes whose value is a ValueExpression must remain un-evaluated and stored in the map as ValueExpression instances.

Parameters:

ctx - the FaceletContext for this request

comp - the UIComponent that corresponds to this element.

Throws:

IOException - if any files necessary to apply this tag handler have any difficulty while loading