/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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.internal;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 import java.util.NoSuchElementException;

 /**

  * @author shot

  * 

  * This class might be changed without notice. Please do not use it

  * excluding the JSF specification part.

  */

 public class ComponentFacetAndChildrenIterator implements Iterator {

     private Iterator facetIterator = null;

     private Iterator childrenIterator = null;

     public ComponentFacetAndChildrenIterator(Map facetMap, List childrenList) {

         if (facetMap != null) {

             facetIterator = facetMap.values().iterator();

         }

         if (childrenList != null) {

             childrenIterator = childrenList.iterator();

         }

     }

     public void remove() {

         throw new UnsupportedOperationException("remove");

     }

     public boolean hasNext() {

         return (facetHasNext() || childrenHasNext());

     }

     public Object next() {

         if (facetHasNext()) {

             return facetIterator.next();

         }

         if (childrenHasNext()) {

             return childrenIterator.next();

         }

         throw new NoSuchElementException();

     }

     private boolean facetHasNext() {

         return (facetIterator != null && facetIterator.hasNext());

     }

     private boolean childrenHasNext() {

         return (childrenIterator != null && childrenIterator.hasNext());

     }

 }