org.apache.axiom.dom.NodeListImpl Maven / Gradle / Ivy
/*
* 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 org.apache.axiom.dom;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import java.util.Iterator;
/** Implementation of org.w3c.dom.NodeList */
public abstract class NodeListImpl implements NodeList {
protected abstract Iterator createIterator();
/**
* Returns the number of nodes.
*
* @see org.w3c.dom.NodeList#getLength()
*/
public int getLength() {
Iterator children = createIterator();
int count = 0;
while (children.hasNext()) {
count++;
children.next();
}
return count;
}
/**
* Returns the node at the given index. Returns null if the index is invalid.
*
* @see org.w3c.dom.NodeList#item(int)
*/
public Node item(int index) {
Iterator children = createIterator();
int count = 0;
while (children.hasNext()) {
if (count == index) {
return children.next();
} else {
children.next();
}
count++;
}
return null;
}
}