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.Hibernate;
025    import org.hibernate.HibernateException;
026    import org.hibernate.usertype.EnhancedUserType;
027    import org.joda.time.LocalTime;
028    
029    /**
030     * Persist {@link org.joda.time.LocalDate} via hibernate.
031     * 
032     * @author Mario Ivankovits (mario@ops.co.at)
033     */
034    public class PersistentLocalTimeAsString implements EnhancedUserType, Serializable {
035    
036        public static final PersistentLocalTimeAsString INSTANCE = new PersistentLocalTimeAsString();
037    
038        private static final int[] SQL_TYPES = new int[] { Types.VARCHAR, };
039    
040        public int[] sqlTypes() {
041            return SQL_TYPES;
042        }
043    
044        public Class returnedClass() {
045            return LocalTime.class;
046        }
047    
048        public boolean equals(Object x, Object y) throws HibernateException {
049            if (x == y) {
050                return true;
051            }
052            if (x == null || y == null) {
053                return false;
054            }
055            LocalTime dtx = (LocalTime) x;
056            LocalTime dty = (LocalTime) y;
057            return dtx.equals(dty);
058        }
059    
060        public int hashCode(Object object) throws HibernateException {
061            return object.hashCode();
062        }
063    
064        public Object nullSafeGet(ResultSet resultSet, String[] strings, Object object) throws HibernateException, SQLException {
065            return nullSafeGet(resultSet, strings[0]);
066    
067        }
068    
069        public Object nullSafeGet(ResultSet resultSet, String string) throws SQLException {
070            Object timestamp = Hibernate.STRING.nullSafeGet(resultSet, string);
071            if (timestamp == null) {
072                return null;
073            }
074    
075            return new LocalTime(timestamp.toString());
076        }
077    
078        public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index) throws HibernateException, SQLException {
079            if (value == null) {
080                Hibernate.STRING.nullSafeSet(preparedStatement, null, index);
081            } else {
082                LocalTime lt = ((LocalTime) value);
083                Hibernate.STRING.nullSafeSet(preparedStatement, lt.toString(), index);
084            }
085        }
086    
087        public Object deepCopy(Object value) throws HibernateException {
088            return value;
089        }
090    
091        public boolean isMutable() {
092            return false;
093        }
094    
095        public Serializable disassemble(Object value) throws HibernateException {
096            return (Serializable) value;
097        }
098    
099        public Object assemble(Serializable cached, Object value) throws HibernateException {
100            return cached;
101        }
102    
103        public Object replace(Object original, Object target, Object owner) throws HibernateException {
104            return original;
105        }
106    
107        public String objectToSQLString(Object object) {
108            throw new UnsupportedOperationException();
109        }
110    
111        public String toXMLString(Object object) {
112            return object.toString();
113        }
114    
115        public Object fromXMLString(String string) {
116            return new LocalTime(string);
117        }
118    
119    }