001 /* 002 * Copyright 2001-2009 Stephen Colebourne 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 * http://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 package org.joda.time.contrib.hibernate; 017 018 import java.io.Serializable; 019 import java.sql.PreparedStatement; 020 import java.sql.ResultSet; 021 import java.sql.SQLException; 022 import java.sql.Types; 023 024 import org.hibernate.HibernateException; 025 import org.hibernate.usertype.EnhancedUserType; 026 import org.joda.time.DateTime; 027 import org.joda.time.TimeOfDay; 028 029 /** 030 * Persist {@link org.joda.time.TimeOfDay} via hibernate. 031 * This uses a simple integer to store the time as milliseconds since 1970-1-1. 032 * The milliseconds will survive. 033 * 034 * @author Mario Ivankovits (mario@ops.co.at) 035 */ 036 public class PersistentTimeOfDayExact implements EnhancedUserType, Serializable { 037 038 private final DateTime timeBase = new DateTime(1970, 1, 1, 0, 0, 0, 0); 039 040 public static final PersistentTimeOfDayExact INSTANCE = new PersistentTimeOfDayExact(); 041 042 private static final int[] SQL_TYPES = new int[] { Types.INTEGER, }; 043 044 public int[] sqlTypes() { 045 return SQL_TYPES; 046 } 047 048 public Class returnedClass() { 049 return TimeOfDay.class; 050 } 051 052 public boolean equals(Object x, Object y) throws HibernateException { 053 if (x == y) { 054 return true; 055 } 056 if (x == null || y == null) { 057 return false; 058 } 059 TimeOfDay dtx = (TimeOfDay) x; 060 TimeOfDay dty = (TimeOfDay) y; 061 062 return dtx.equals(dty); 063 } 064 065 public int hashCode(Object object) throws HibernateException { 066 return object.hashCode(); 067 } 068 069 public Object nullSafeGet(ResultSet resultSet, String[] strings, Object object) throws HibernateException, SQLException { 070 return nullSafeGet(resultSet, strings[0]); 071 072 } 073 074 public Object nullSafeGet(ResultSet resultSet, String string) throws SQLException { 075 int value = resultSet.getInt(string); 076 if (resultSet.wasNull()) { 077 return null; 078 } 079 return new TimeOfDay(value); 080 } 081 082 public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index) throws HibernateException, SQLException { 083 if (value == null) { 084 preparedStatement.setNull(index, SQL_TYPES[0]); 085 } else { 086 preparedStatement.setInt(index, (int) ((TimeOfDay) value).toDateTime(timeBase).getMillis()); 087 } 088 } 089 090 public Object deepCopy(Object value) throws HibernateException { 091 return value; 092 } 093 094 public boolean isMutable() { 095 return false; 096 } 097 098 public Serializable disassemble(Object value) throws HibernateException { 099 return (Serializable) value; 100 } 101 102 public Object assemble(Serializable cached, Object value) throws HibernateException { 103 return cached; 104 } 105 106 public Object replace(Object original, Object target, Object owner) throws HibernateException { 107 return original; 108 } 109 110 public String objectToSQLString(Object object) { 111 throw new UnsupportedOperationException(); 112 } 113 114 public String toXMLString(Object object) { 115 return object.toString(); 116 } 117 118 public Object fromXMLString(String string) { 119 return new TimeOfDay(string); 120 } 121 122 }