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 }