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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
There is a newer version: 2.2.20
/*
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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * exception as provided by Oracle in the GPL Version 2 section of the License
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 * 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
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package com.sun.faces.facelets.compiler;

import javax.faces.component.UIComponent;
import javax.faces.view.facelets.CompositeFaceletHandler;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.FaceletHandler;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * 
 * @author Jacob Hookom
 * @version $Id$
 */
class CompilationUnit {

    protected final static FaceletHandler LEAF = new FaceletHandler() {
        public void apply(FaceletContext ctx, UIComponent parent)
                throws IOException {
        }
        public String toString() {
            return "FaceletHandler Tail";
        }
    };

    private List children;

    public CompilationUnit() {
    }

    protected void startNotify(CompilationManager manager) {

    }

    protected void finishNotify(CompilationManager manager) {
        
    }

    public void addChild(CompilationUnit unit) {
        if (this.children == null) {
            this.children = new ArrayList();
        }
        this.children.add(unit);
    }

    public FaceletHandler createFaceletHandler() {
        return this.getNextFaceletHandler();
    }

    protected final FaceletHandler getNextFaceletHandler() {
        if (this.children == null || this.children.size() == 0) {
            return LEAF;
        }
        if (this.children.size() == 1) {
            CompilationUnit u = (CompilationUnit) this.children.get(0);
            return u.createFaceletHandler();
        }
        FaceletHandler[] fh = new FaceletHandler[this.children.size()];
        for (int i = 0; i < fh.length; i++) {
            fh[i] = ((CompilationUnit) this.children.get(i))
                    .createFaceletHandler();
        }
        return new CompositeFaceletHandler(fh);
    }

}