1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.apache.harmony.xml.dom; 18 19 import java.util.ArrayList; 20 import java.util.List; 21 import org.w3c.dom.Node; 22 import org.w3c.dom.NodeList; 23 24 /** 25 * Provides a straightforward implementation of the corresponding W3C DOM 26 * interface. The class is used internally only, thus only notable members that 27 * are not in the original interface are documented (the W3C docs are quite 28 * extensive). Hope that's ok. 29 * <p> 30 * Some of the fields may have package visibility, so other classes belonging to 31 * the DOM implementation can easily access them while maintaining the DOM tree 32 * structure. 33 */ 34 public class NodeListImpl implements NodeList { 35 36 private List<NodeImpl> children; 37 38 NodeListImpl() { 39 children = new ArrayList<NodeImpl>(); 40 } 41 42 NodeListImpl(List<NodeImpl> list) { 43 children = list; 44 } 45 46 void add(NodeImpl node) { 47 children.add(node); 48 } 49 50 public int getLength() { 51 return children.size(); 52 } 53 54 public Node item(int index) { 55 if (index >= children.size()) { 56 return null; 57 } else { 58 return children.get(index); 59 } 60 } 61 62 } 63
