1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.directory.api.ldap.model.schema.comparators; 21 22 23 import java.io.Serializable; 24 25 import org.apache.directory.api.i18n.I18n; 26 import org.apache.directory.api.ldap.model.schema.LdapComparator; 27 28 29 /** 30 * Compares Long keys and values within a table. 31 * 32 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 33 */ 34 public class LongComparator extends LdapComparator<Long> implements Serializable 35 { 36 /** The serial version UID */ 37 private static final long serialVersionUID = 2L; 38 39 40 /** 41 * The LongComparator constructor. Its OID is the IntegerOrderingMatch matching 42 * rule OID. 43 * 44 * @param oid The Comparator's OID 45 */ 46 public LongComparator( String oid ) 47 { 48 super( oid ); 49 } 50 51 52 /** 53 * {@inheritDoc} 54 */ 55 public int compare( Long obj1, Long obj2 ) 56 { 57 if ( obj1 == obj2 ) 58 { 59 return 0; 60 } 61 62 if ( obj1 == null ) 63 { 64 throw new IllegalArgumentException( I18n.err( I18n.ERR_04219_ARGUMENT1_NULL ) ); 65 } 66 67 if ( obj2 == null ) 68 { 69 throw new IllegalArgumentException( I18n.err( I18n.ERR_04220_ARGUMENT2_NULL ) ); 70 } 71 72 return obj1.compareTo( obj2 ); 73 } 74 }