| 1 | package org.apache.velocity.util; |
| 2 | |
| 3 | /* |
| 4 | * Copyright 1999-2001,2004 The Apache Software Foundation. |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | import java.util.Iterator; |
| 20 | import java.util.Enumeration; |
| 21 | |
| 22 | /** |
| 23 | * An Iterator wrapper for an Enumeration. |
| 24 | * |
| 25 | * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a> |
| 26 | * @version $Id: EnumerationIterator.java,v 1.1.14.1 2004/03/03 23:23:07 geirm Exp $ |
| 27 | */ |
| 28 | public class EnumerationIterator implements Iterator |
| 29 | { |
| 30 | /** |
| 31 | * The enumeration to iterate. |
| 32 | */ |
| 33 | private Enumeration enum = null; |
| 34 | |
| 35 | /** |
| 36 | * Creates a new iteratorwrapper instance for the specified |
| 37 | * Enumeration. |
| 38 | * |
| 39 | * @param enum The Enumeration to wrap. |
| 40 | */ |
| 41 | public EnumerationIterator( Enumeration enum) |
| 42 | { |
| 43 | this.enum = enum; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * Move to next element in the array. |
| 48 | * |
| 49 | * @return The next object in the array. |
| 50 | */ |
| 51 | public Object next() |
| 52 | { |
| 53 | return enum.nextElement(); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Check to see if there is another element in the array. |
| 58 | * |
| 59 | * @return Whether there is another element. |
| 60 | */ |
| 61 | public boolean hasNext() |
| 62 | { |
| 63 | return enum.hasMoreElements(); |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Unimplemented. No analogy in Enumeration |
| 68 | */ |
| 69 | public void remove() |
| 70 | { |
| 71 | // not implemented |
| 72 | } |
| 73 | |
| 74 | } |