001 /*
002 * Copyright 2001-2011 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.HibernateException;
026 import org.hibernate.type.StandardBasicTypes;
027 import org.hibernate.usertype.EnhancedUserType;
028 import org.joda.time.DateTime;
029 import org.joda.time.TimeOfDay;
030
031 /**
032 * Persist {@link org.joda.time.TimeOfDay} via hibernate.
033 * This uses java.sql.Time and the time datatype of your database.
034 * Notice: You might loose the milliseconds part.
035 *
036 * @author Mario Ivankovits (mario@ops.co.at)
037 */
038 public class PersistentTimeOfDay implements EnhancedUserType, Serializable {
039
040 private final DateTime timeBase = new DateTime(1970, 1, 1, 0, 0, 0, 0);
041
042 public static final PersistentTimeOfDay INSTANCE = new PersistentTimeOfDay();
043
044 private static final int[] SQL_TYPES = new int[] { Types.TIME, };
045
046 public int[] sqlTypes() {
047 return SQL_TYPES;
048 }
049
050 public Class returnedClass() {
051 return TimeOfDay.class;
052 }
053
054 public boolean equals(Object x, Object y) throws HibernateException {
055 if (x == y) {
056 return true;
057 }
058 if (x == null || y == null) {
059 return false;
060 }
061 TimeOfDay dtx = (TimeOfDay) x;
062 TimeOfDay dty = (TimeOfDay) y;
063 return dtx.equals(dty);
064 }
065
066 public int hashCode(Object object) throws HibernateException {
067 return object.hashCode();
068 }
069
070 public Object nullSafeGet(ResultSet resultSet, String[] strings, Object object) throws HibernateException, SQLException {
071 return nullSafeGet(resultSet, strings[0]);
072
073 }
074
075 public Object nullSafeGet(ResultSet resultSet, String string) throws SQLException {
076 Object date = StandardBasicTypes.TIME.nullSafeGet(resultSet, string);
077 if (date == null) {
078 return null;
079 }
080
081 return new TimeOfDay(date);
082 }
083
084 public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index) throws HibernateException, SQLException {
085 if (value == null) {
086 StandardBasicTypes.TIME.nullSafeSet(preparedStatement, null, index);
087 } else {
088 StandardBasicTypes.TIME.nullSafeSet(preparedStatement,
089 new Time(((TimeOfDay) value).toDateTime(timeBase).getMillis()), index);
090 }
091 }
092
093 public Object deepCopy(Object value) throws HibernateException {
094 return value;
095 }
096
097 public boolean isMutable() {
098 return false;
099 }
100
101 public Serializable disassemble(Object value) throws HibernateException {
102 return (Serializable) value;
103 }
104
105 public Object assemble(Serializable cached, Object value) throws HibernateException {
106 return cached;
107 }
108
109 public Object replace(Object original, Object target, Object owner) throws HibernateException {
110 return original;
111 }
112
113 public String objectToSQLString(Object object) {
114 throw new UnsupportedOperationException();
115 }
116
117 public String toXMLString(Object object) {
118 return object.toString();
119 }
120
121 public Object fromXMLString(String string) {
122 return new TimeOfDay(string);
123 }
124
125 }