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.Time;
023 import java.sql.Types;
024
025 import org.hibernate.Hibernate;
026 import org.hibernate.HibernateException;
027 import org.hibernate.usertype.EnhancedUserType;
028 import org.joda.time.DateTimeZone;
029 import org.joda.time.LocalTime;
030
031 /**
032 * Persist {@link org.joda.time.LocalDate} via hibernate.
033 * This uses a simple integer to store the time as milliseconds since 1970-1-1.
034 * The milliseconds will survive.
035 *
036 * @author Mario Ivankovits (mario@ops.co.at)
037 */
038 public class PersistentLocalTimeAsTime implements EnhancedUserType, Serializable {
039
040 public static final PersistentLocalTimeAsTime INSTANCE = new PersistentLocalTimeAsTime();
041
042 private static final int[] SQL_TYPES = new int[] { Types.TIME, };
043
044 public int[] sqlTypes() {
045 return SQL_TYPES;
046 }
047
048 public Class returnedClass() {
049 return LocalTime.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 LocalTime dtx = (LocalTime) x;
060 LocalTime dty = (LocalTime) y;
061 return dtx.equals(dty);
062 }
063
064 public int hashCode(Object object) throws HibernateException {
065 return object.hashCode();
066 }
067
068 public Object nullSafeGet(ResultSet resultSet, String[] strings, Object object) throws HibernateException, SQLException {
069 return nullSafeGet(resultSet, strings[0]);
070
071 }
072
073 public Object nullSafeGet(ResultSet resultSet, String string) throws SQLException {
074 Object timestamp = Hibernate.TIME.nullSafeGet(resultSet, string);
075 if (timestamp == null) {
076 return null;
077 }
078
079 return new LocalTime(timestamp, DateTimeZone.UTC);
080 }
081
082 public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index) throws HibernateException, SQLException {
083 if (value == null) {
084 Hibernate.TIME.nullSafeSet(preparedStatement, null, index);
085 } else {
086 LocalTime lt = ((LocalTime) value);
087 Time time = new Time(lt.getMillisOfDay());
088 Hibernate.TIME.nullSafeSet(preparedStatement, time, index);
089 }
090 }
091
092 public Object deepCopy(Object value) throws HibernateException {
093 return value;
094 }
095
096 public boolean isMutable() {
097 return false;
098 }
099
100 public Serializable disassemble(Object value) throws HibernateException {
101 return (Serializable) value;
102 }
103
104 public Object assemble(Serializable cached, Object value) throws HibernateException {
105 return cached;
106 }
107
108 public Object replace(Object original, Object target, Object owner) throws HibernateException {
109 return original;
110 }
111
112 public String objectToSQLString(Object object) {
113 throw new UnsupportedOperationException();
114 }
115
116 public String toXMLString(Object object) {
117 return object.toString();
118 }
119
120 public Object fromXMLString(String string) {
121 return new LocalTime(string);
122 }
123
124 }