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EE4J Compatible Implementation for Jakarta Faces API
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
* Copyright 2005-2007 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.faces.view.facelets;
import java.io.IOException;
import javax.faces.component.UIComponent;
/**
* This is the root class for markup
* elements in Facelets VDL. Facelets is XHTML, and XHTML is XML, and
* the root unit of abstraction in XML is the element. A
* FaceletHandler
instance represents an XML element at
* runtime. Two direct implementations exist to embody the contract for
* more specific behavior.
*
*
*
* - {@link CompositeFaceletHandler}
* - A container for other
FaceletHandler
s
* - {@link TagHandler}
* - The foundation class for
FaceletHandler
s associated
* with markup in a Facelet document.
*
*
* @since 2.0
*/
public interface FaceletHandler {
/**
* Process changes on a particular
* UIComponent
*
* @param ctx the current FaceletContext instance for this execution
* @param parent the parent UIComponent to operate upon
* @throws IOException if unable to load relativePath
* @throws FaceletException if unable to parse the markup loaded from relativePath
* @throws javax.faces.FacesException if unable to create child UIComponent
instances
* @throws javax.el.ELException if any of the expressions in the markup
* loaded from relativePath
fail
* @since 2.0
*/
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException;
}