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Commons Collections example source code file (EntrySetMapIterator.java)
The Commons Collections EntrySetMapIterator.java source code/*
* 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.commons.collections.iterators;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.collections.MapIterator;
import org.apache.commons.collections.ResettableIterator;
/**
* Implements a <code>MapIterator using a Map entrySet.
* Reverse iteration is not supported.
* <pre>
* MapIterator it = map.mapIterator();
* while (it.hasNext()) {
* Object key = it.next();
* Object value = it.getValue();
* it.setValue(newValue);
* }
* </pre>
*
* @since Commons Collections 3.0
* @version $Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $
*
* @author Stephen Colebourne
*/
public class EntrySetMapIterator implements MapIterator, ResettableIterator {
private final Map map;
private Iterator iterator;
private Map.Entry last;
private boolean canRemove = false;
/**
* Constructor.
*
* @param map the map to iterate over
*/
public EntrySetMapIterator(Map map) {
super();
this.map = map;
this.iterator = map.entrySet().iterator();
}
//-----------------------------------------------------------------------
/**
* Checks to see if there are more entries still to be iterated.
*
* @return <code>true if the iterator has more elements
*/
public boolean hasNext() {
return iterator.hasNext();
}
/**
* Gets the next <em>key from the
Other Commons Collections examples (source code examples)Here is a short list of links related to this Commons Collections EntrySetMapIterator.java source code file: |
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