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Commons Collections example source code file (AbstractOrderedMapIteratorDecorator.java)

This example Commons Collections source code file (AbstractOrderedMapIteratorDecorator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Collections tags/keywords

abstractorderedmapiteratordecorator, abstractorderedmapiteratordecorator, illegalargumentexception, illegalargumentexception, object, object, orderedmapiterator, orderedmapiterator

The Commons Collections AbstractOrderedMapIteratorDecorator.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 org.apache.commons.collections.OrderedMapIterator;

/**
 * Provides basic behaviour for decorating an ordered map iterator with extra functionality.
 * <p>
 * All methods are forwarded to the decorated map iterator.
 *
 * @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 AbstractOrderedMapIteratorDecorator implements OrderedMapIterator {

    /** The iterator being decorated */
    protected final OrderedMapIterator iterator;

    //-----------------------------------------------------------------------
    /**
     * Constructor that decorates the specified iterator.
     *
     * @param iterator  the iterator to decorate, must not be null
     * @throws IllegalArgumentException if the collection is null
     */
    public AbstractOrderedMapIteratorDecorator(OrderedMapIterator iterator) {
        super();
        if (iterator == null) {
            throw new IllegalArgumentException("OrderedMapIterator must not be null");
        }
        this.iterator = iterator;
    }

    /**
     * Gets the iterator being decorated.
     * 
     * @return the decorated iterator
     */
    protected OrderedMapIterator getOrderedMapIterator() {
        return iterator;
    }

    //-----------------------------------------------------------------------
    public boolean hasNext() {
        return iterator.hasNext();
    }

    public Object next() {
        return iterator.next();
    }

    public boolean hasPrevious() {
        return iterator.hasPrevious();
    }

    public Object previous() {
        return iterator.previous();
    }

    public void remove() {
        iterator.remove();
    }
    
    public Object getKey() {
        return iterator.getKey();
    }

    public Object getValue() {
        return iterator.getValue();
    }

    public Object setValue(Object obj) {
        return iterator.setValue(obj);
    }

}

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