/* | |
* Copyright 2003-2009 the original author or authors. | |
* | |
* 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 org.codehaus.groovy.runtime; | |
import org.w3c.dom.Node; | |
import org.w3c.dom.NodeList; | |
import java.util.Iterator; | |
/** | |
* This class defines all the new XML-related groovy methods which enhance | |
* the normal JDK XML classes when inside the Groovy environment. | |
* Static methods are used with the first parameter the destination class. | |
* | |
* @author Paul King | |
* @author Jochen Theodorou | |
*/ | |
public class XmlGroovyMethods { | |
/** | |
* Makes NodeList iterable by returning a read-only Iterator which traverses | |
* over each Node. | |
* | |
* @param nodeList a NodeList | |
* @return an Iterator for a NodeList | |
* @since 1.0 | |
*/ | |
public static Iterator<Node> iterator(final NodeList nodeList) { | |
return new Iterator<Node>() { | |
private int current /* = 0 */; | |
public boolean hasNext() { | |
return current < nodeList.getLength(); | |
} | |
public Node next() { | |
return nodeList.item(current++); | |
} | |
public void remove() { | |
throw new UnsupportedOperationException("Cannot remove() from a NodeList iterator"); | |
} | |
}; | |
} | |
} |