| /* |
| * Copyright 1999-2004 The Apache Software Foundation |
| * |
| * 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.apache.commons.collections.iterators; |
| |
| import java.util.Iterator; |
| |
| /** |
| * A Proxy {@link Iterator Iterator} which delegates its methods to a proxy instance. |
| * |
| * @deprecated Use AbstractIteratorDecorator. Will be removed in v4.0 |
| * @since Commons Collections 1.0 |
| * @version $Revision: 1.1 $ $Date: 2009/05/27 22:16:27 $ |
| * |
| * @author James Strachan |
| */ |
| public class ProxyIterator implements Iterator { |
| |
| /** Holds value of property iterator. */ |
| private Iterator iterator; |
| |
| // Constructors |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Constructs a new <code>ProxyIterator</code> that will not function |
| * until {@link #setIterator(Iterator)} is called. |
| */ |
| public ProxyIterator() { |
| super(); |
| } |
| |
| /** |
| * Constructs a new <code>ProxyIterator</code> that will use the |
| * given iterator. |
| * |
| * @param iterator the underlying iterator |
| */ |
| public ProxyIterator(Iterator iterator) { |
| super(); |
| this.iterator = iterator; |
| } |
| |
| // Iterator interface |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Returns true if the underlying iterator has more elements. |
| * |
| * @return true if the underlying iterator has more elements |
| */ |
| public boolean hasNext() { |
| return getIterator().hasNext(); |
| } |
| |
| /** |
| * Returns the next element from the underlying iterator. |
| * |
| * @return the next element from the underlying iterator |
| * @throws java.util.NoSuchElementException if the underlying iterator |
| * raises it because it has no more elements |
| */ |
| public Object next() { |
| return getIterator().next(); |
| } |
| |
| /** |
| * Removes the last returned element from the collection that spawned |
| * the underlying iterator. |
| */ |
| public void remove() { |
| getIterator().remove(); |
| } |
| |
| // Properties |
| //------------------------------------------------------------------------- |
| /** Getter for property iterator. |
| * @return Value of property iterator. |
| */ |
| public Iterator getIterator() { |
| return iterator; |
| } |
| /** Setter for property iterator. |
| * @param iterator New value of property iterator. |
| */ |
| public void setIterator(Iterator iterator) { |
| this.iterator = iterator; |
| } |
| } |