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 public LongComparator( String oid ) 45 { 46 super( oid ); 47 } 48 49 50 /** 51 * Compare two objects. 52 * 53 * @param obj1 First object 54 * @param obj2 Second object 55 * @return 1 if obj1 > obj2, 0 if obj1 == obj2, -1 if obj1 < obj2 56 */ 57 @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "RC_REF_COMPARISON", 58 justification = "false positive") 59 public int compare( Long obj1, Long obj2 ) 60 { 61 if ( obj1 == obj2 ) 62 { 63 return 0; 64 } 65 66 if ( obj1 == null ) 67 { 68 throw new IllegalArgumentException( I18n.err( I18n.ERR_04219_ARGUMENT1_NULL ) ); 69 } 70 71 if ( obj2 == null ) 72 { 73 throw new IllegalArgumentException( I18n.err( I18n.ERR_04220_ARGUMENT2_NULL ) ); 74 } 75 76 return obj1.compareTo( obj2 ); 77 } 78 }