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 * 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,
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package org.apache.commons.collections4;

Defines an iterator that operates over an ordered Map.

This iterator allows both forward and reverse iteration through the map.

Type parameters:
<K> – the type of the keys in the map
<V> – the type of the values in the map
Since:
3.0/**
 * Defines an iterator that operates over an ordered <code>Map</code>.
 * <p>
 * This iterator allows both forward and reverse iteration through the map.
 * </p>
 *
 * @param <K> the type of the keys in the map
 * @param <V> the type of the values in the map
 * @since 3.0
 */
public interface OrderedMapIterator<K, V> extends MapIterator<K, V>, OrderedIterator<K> {

    
Checks to see if there is a previous entry that can be iterated to.
Returns:
true if the iterator has a previous element/**
     * Checks to see if there is a previous entry that can be iterated to.
     *
     * @return <code>true</code> if the iterator has a previous element
     */
    @Override
    boolean hasPrevious();

    
Gets the previous key from the Map.
Throws:
NoSuchElementException – if the iteration is finished
Returns:
the previous key in the iteration/**
     * Gets the previous <em>key</em> from the <code>Map</code>.
     *
     * @return the previous key in the iteration
     * @throws java.util.NoSuchElementException if the iteration is finished
     */
    @Override
    K previous();

}