/*
* $Id: IteratorAdapter.java 471754 2006-11-06 14:55:09Z husted $
*
* 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.struts.util;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.NoSuchElementException;
/**
* Utility method for converting Enumeration to an Iterator class. If you
* attempt to remove() an Object from the iterator, it will throw an
* UnsupportedOperationException. Added for use by TagLib so Enumeration can
* be supported
*
* @version $Rev: 471754 $ $Date: 2005-05-07 12:11:38 -0400 (Sat, 07 May 2005)
* $
*/
public class IteratorAdapter implements Iterator {
private Enumeration e;
public IteratorAdapter(Enumeration e) {
this.e = e;
}
public boolean hasNext() {
return e.hasMoreElements();
}
public Object next() {
if (!e.hasMoreElements()) {
throw new NoSuchElementException(
"IteratorAdaptor.next() has no more elements");
}
return e.nextElement();
}
public void remove() {
throw new UnsupportedOperationException(
"Method IteratorAdaptor.remove() not implemented");
}
}