001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.orm.hibernate3.support; 018 019import java.sql.PreparedStatement; 020import java.sql.ResultSet; 021import java.sql.SQLException; 022import java.sql.Types; 023import java.util.Arrays; 024import javax.transaction.TransactionManager; 025 026import org.springframework.jdbc.support.lob.LobCreator; 027import org.springframework.jdbc.support.lob.LobHandler; 028 029/** 030 * Hibernate UserType implementation for byte arrays that get mapped to BLOBs. 031 * Retrieves the LobHandler to use from LocalSessionFactoryBean at config time. 032 * 033 * <p>Can also be defined in generic Hibernate mappings, as DefaultLobCreator will 034 * work with most JDBC-compliant database drivers. In this case, the field type 035 * does not have to be BLOB: For databases like MySQL and MS SQL Server, any 036 * large enough binary type will work. 037 * 038 * @author Juergen Hoeller 039 * @since 1.2 040 * @see org.springframework.orm.hibernate3.LocalSessionFactoryBean#setLobHandler 041 * @deprecated as of Spring 4.3, in favor of Hibernate 4.x/5.x 042 */ 043@Deprecated 044public class BlobByteArrayType extends AbstractLobType { 045 046 /** 047 * Constructor used by Hibernate: fetches config-time LobHandler and 048 * config-time JTA TransactionManager from LocalSessionFactoryBean. 049 * @see org.springframework.orm.hibernate3.LocalSessionFactoryBean#getConfigTimeLobHandler 050 * @see org.springframework.orm.hibernate3.LocalSessionFactoryBean#getConfigTimeTransactionManager 051 */ 052 public BlobByteArrayType() { 053 super(); 054 } 055 056 /** 057 * Constructor used for testing: takes an explicit LobHandler 058 * and an explicit JTA TransactionManager (can be {@code null}). 059 */ 060 protected BlobByteArrayType(LobHandler lobHandler, TransactionManager jtaTransactionManager) { 061 super(lobHandler, jtaTransactionManager); 062 } 063 064 @Override 065 public int[] sqlTypes() { 066 return new int[] {Types.BLOB}; 067 } 068 069 @Override 070 public Class<?> returnedClass() { 071 return byte[].class; 072 } 073 074 @Override 075 public boolean isMutable() { 076 return true; 077 } 078 079 @Override 080 public boolean equals(Object x, Object y) { 081 return (x == y) || 082 (x instanceof byte[] && y instanceof byte[] && Arrays.equals((byte[]) x, (byte[]) y)); 083 } 084 085 @Override 086 public Object deepCopy(Object value) { 087 if (value == null) { 088 return null; 089 } 090 byte[] original = (byte[]) value; 091 byte[] copy = new byte[original.length]; 092 System.arraycopy(original, 0, copy, 0, original.length); 093 return copy; 094 } 095 096 @Override 097 protected Object nullSafeGetInternal( 098 ResultSet rs, String[] names, Object owner, LobHandler lobHandler) 099 throws SQLException { 100 101 return lobHandler.getBlobAsBytes(rs, names[0]); 102 } 103 104 @Override 105 protected void nullSafeSetInternal( 106 PreparedStatement ps, int index, Object value, LobCreator lobCreator) 107 throws SQLException { 108 109 lobCreator.setBlobAsBytes(ps, index, (byte[]) value); 110 } 111 112}