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 * https://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; 021 022 023/** 024 * A class containing a SchemaObject, used by the global registries. As the hash code 025 * method of the SchemaObject class is too complex, we had to define a simplest class 026 * for this purpose, where the hash code is computed using only the SchemaObject 027 * type and its OID. 028 * 029 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 030 */ 031public class SchemaObjectWrapper 032{ 033 /** The internal schemaObject */ 034 private SchemaObject schemaObject; 035 036 037 /** 038 * Creates a new instance of SchemaObjectWrapper. 039 * 040 * @param schemaObject The contained SchemaObject 041 */ 042 public SchemaObjectWrapper( SchemaObject schemaObject ) 043 { 044 this.schemaObject = schemaObject; 045 } 046 047 048 /** 049 * Compute the hash code for this wrapper. We only use the object type 050 * and its oid. 051 */ 052 @Override 053 public int hashCode() 054 { 055 int h = 37; 056 h += h * 17 + schemaObject.getObjectType().getValue(); 057 058 if ( schemaObject.getOid() != null ) 059 { 060 h += h * 17 + schemaObject.getOid().hashCode(); 061 } 062 063 return h; 064 } 065 066 067 /** 068 * @see Object#equals(Object) 069 */ 070 @Override 071 public boolean equals( Object o ) 072 { 073 if ( o == this ) 074 { 075 return true; 076 } 077 078 if ( !( o instanceof SchemaObjectWrapper ) ) 079 { 080 return false; 081 } 082 083 SchemaObject that = ( ( SchemaObjectWrapper ) o ).get(); 084 SchemaObject current = get(); 085 086 // Ultimately, that has to be true, regardless of the OID value 087 if ( that.getObjectType() != current.getObjectType() ) 088 { 089 return false; 090 } 091 092 // If both OID are null, instances are equals 093 if ( that.getOid() == null ) 094 { 095 return current.getOid() == null; 096 } 097 098 // The that'oid will never be null, we don't really care if current.oid is null here. 099 return that.getOid().equals( current.getOid() ); 100 } 101 102 103 /** 104 * @return The interned SchemaObject 105 */ 106 public SchemaObject get() 107 { 108 return schemaObject; 109 } 110 111 112 /** 113 * @see Object#toString() 114 */ 115 @Override 116 public String toString() 117 { 118 return "<" + schemaObject.getObjectType() + "," + schemaObject.getOid() + ">"; 119 } 120}