| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.component; |
| |
| import java.io.Serializable; |
| import java.util.*; |
| |
| /** |
| * @author Manfred Geiler (latest modification by $Author$) |
| * @version $Revision$ $Date$ |
| */ |
| class _ComponentChildrenList |
| extends AbstractList |
| implements Serializable |
| { |
| private static final long serialVersionUID = -6775078929331154224L; |
| private UIComponent _component; |
| private List _list = new ArrayList(); |
| private Map _idIndexedMap = new HashMap(); |
| |
| _ComponentChildrenList(UIComponent component) |
| { |
| _component = component; |
| } |
| |
| public UIComponent get(String id) { |
| return (UIComponent) _idIndexedMap.get(id); |
| } |
| |
| public Object get(int index) |
| { |
| return _list.get(index); |
| } |
| |
| public int size() |
| { |
| return _list.size(); |
| } |
| |
| public Object set(int index, Object value) |
| { |
| checkValue(value); |
| setNewParent((UIComponent)value); |
| UIComponent child = (UIComponent) _list.set(index, value); |
| resetParent(child); |
| return child; |
| } |
| |
| public boolean add(Object value) |
| { |
| checkValue(value); |
| setNewParent((UIComponent)value); |
| return _list.add(value); |
| } |
| |
| public void add(int index, Object value) |
| { |
| checkValue(value); |
| setNewParent((UIComponent)value); |
| _list.add(index, value); |
| } |
| |
| public Object remove(int index) |
| { |
| UIComponent child = (UIComponent) _list.remove(index); |
| resetParent(child); |
| return child; |
| } |
| |
| |
| private void setNewParent(UIComponent child) |
| { |
| UIComponent oldParent = child.getParent(); |
| if (oldParent != null) |
| { |
| oldParent.getChildren().remove(child); |
| } |
| child.setParent(_component); |
| _idIndexedMap.put(child.getId(),child); |
| } |
| |
| private void resetParent(UIComponent child) { |
| if (child != null) |
| child.setParent(null); |
| _idIndexedMap.remove(child.getId()); |
| } |
| |
| private void checkValue(Object value) |
| { |
| if (value == null) throw new NullPointerException("value"); |
| if (!(value instanceof UIComponent)) throw new ClassCastException("value is not a UIComponent"); |
| } |
| |
| public void updateId(String oldId, UIComponent component) { |
| _idIndexedMap.remove(oldId); |
| _idIndexedMap.put(component.getId(), component); |
| } |
| } |