001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *  http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.directory.server.core.partition.impl.btree;
020
021
022import org.apache.directory.api.ldap.model.schema.comparators.SerializableComparator;
023
024
025/**
026 * The default implementation of a pair of comparators which compares both
027 * keys and values of a Tuple.
028 *
029 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
030 */
031public class DefaultTupleComparator<K, V> implements TupleComparator<K, V>
032{
033    private static final long serialVersionUID = -6639792479317762334L;
034
035    SerializableComparator<K> keyComparator;
036    SerializableComparator<V> valueComparator;
037
038
039    public DefaultTupleComparator( SerializableComparator<K> keyComparator, SerializableComparator<V> valueComparator )
040    {
041        this.keyComparator = keyComparator;
042        this.valueComparator = valueComparator;
043    }
044
045
046    public SerializableComparator<K> getKeyComparator()
047    {
048        return keyComparator;
049    }
050
051
052    public SerializableComparator<V> getValueComparator()
053    {
054        return valueComparator;
055    }
056
057
058    public int compareKey( K key1, K key2 )
059    {
060        return keyComparator.compare( key1, key2 );
061    }
062
063
064    public int compareValue( V value1, V value2 )
065    {
066        return valueComparator.compare( value1, value2 );
067    }
068}