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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 javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
/**
* The parent or root object
* in a FaceletHandler composition. The Facelet will take care of
* populating the passed UIComponent parent in relation to the
* create/restore lifecycle of JSF.
*
*/
public abstract class Facelet {
/**
* The passed
* UIComponent parent will be populated/restored in accordance with
* the Facelets chapter in the
* spec prose document.
*
* @param facesContext
* The current FacesContext (Should be the same as
* FacesContext.getInstance())
* @param parent
* The UIComponent to populate in a compositional fashion. In
* most cases a Facelet will be base a UIViewRoot.
*
* @throws IOException if unable to load a file necessary to apply this {@code Facelet}
* @throws FaceletException if unable to parse the markup loaded in applying this {@code Facelet}
* @throws javax.faces.FacesException if unable to create child UIComponent
instances
* @throws javax.el.ELException if any of the expressions in the markup
* loaded during the apply fail
*/
public abstract void apply(FacesContext facesContext, UIComponent parent)
throws IOException;
}