| /* |
| * $Id$ |
| * |
| * 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.tiles.util; |
| |
| import java.util.Enumeration; |
| import java.util.Vector; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class RollingVectorEnumeration<E> implements Enumeration<E> { |
| |
| private Vector<E> vector; |
| |
| private Enumeration<E> elements; |
| |
| public RollingVectorEnumeration(Vector<E> vector) { |
| this.vector = vector; |
| } |
| |
| public boolean hasMoreElements() { |
| if (elements == null) { |
| elements = vector.elements(); |
| return false; |
| } |
| return elements.hasMoreElements(); |
| } |
| |
| public E nextElement() { |
| E retValue = elements.nextElement(); |
| |
| if (!elements.hasMoreElements()) { |
| elements = null; |
| } |
| |
| return retValue; |
| } |
| |
| } |