| /******************************************************************************* |
| * Copyright (c) 2005, 2009 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0, which accompanies this distribution |
| * and is available at http://www.eclipse.org/legal/epl-v10.html. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.utility.internal.enumerations; |
| |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import org.eclipse.jpt.utility.internal.StringTools; |
| |
| /** |
| * An <code>IteratorEnumeration</code> wraps an |
| * {@link Iterator} so that it can be treated like an |
| * {@link Enumeration}. |
| * Hopefully we don't have much need for this.... |
| * |
| * @param <E> the type of elements returned by the enumeration |
| */ |
| public class IteratorEnumeration<E> |
| implements Enumeration<E> |
| { |
| private final Iterator<? extends E> iterator; |
| |
| /** |
| * Construct an enumeration that wraps the specified iterable. |
| */ |
| public IteratorEnumeration(Iterable<? extends E> iterable) { |
| this(iterable.iterator()); |
| } |
| |
| /** |
| * Construct an enumeration that wraps the specified iterator. |
| */ |
| public IteratorEnumeration(Iterator<? extends E> iterator) { |
| super(); |
| this.iterator = iterator; |
| } |
| |
| public boolean hasMoreElements() { |
| return this.iterator.hasNext(); |
| } |
| |
| public E nextElement() { |
| return this.iterator.next(); |
| } |
| |
| @Override |
| public String toString() { |
| return StringTools.buildToStringFor(this, this.iterator); |
| } |
| |
| } |