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 Server Faces implementation while still allowing concrete classes to be defined for extension by users.

Since:
2.0

  • Constructor Details

  • 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