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 * 019 */ 020package org.apache.directory.api.ldap.model.schema.comparators; 021 022 023import java.io.Serializable; 024 025import org.apache.directory.api.i18n.I18n; 026import org.apache.directory.api.ldap.model.schema.LdapComparator; 027 028 029/** 030 * Compares Long keys and values within a table. 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public class LongComparator extends LdapComparator<Long> implements Serializable 035{ 036 /** The serial version UID */ 037 private static final long serialVersionUID = 2L; 038 039 040 /** 041 * The LongComparator constructor. Its OID is the IntegerOrderingMatch matching 042 * rule OID. 043 * 044 * @param oid The Comparator's OID 045 */ 046 public LongComparator( String oid ) 047 { 048 super( oid ); 049 } 050 051 052 /** 053 * {@inheritDoc} 054 */ 055 public int compare( Long obj1, Long obj2 ) 056 { 057 if ( obj1 == obj2 ) 058 { 059 return 0; 060 } 061 062 if ( obj1 == null ) 063 { 064 throw new IllegalArgumentException( I18n.err( I18n.ERR_04219_ARGUMENT1_NULL ) ); 065 } 066 067 if ( obj2 == null ) 068 { 069 throw new IllegalArgumentException( I18n.err( I18n.ERR_04220_ARGUMENT2_NULL ) ); 070 } 071 072 return obj1.compareTo( obj2 ); 073 } 074}