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1   /*
2    *  Copyright 2001-2011 Stephen Colebourne
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   */
16  package org.joda.time.contrib.hibernate;
17  
18  import java.io.Serializable;
19  import java.sql.PreparedStatement;
20  import java.sql.ResultSet;
21  import java.sql.SQLException;
22  import java.sql.Time;
23  import java.sql.Types;
24  
25  import org.hibernate.HibernateException;
26  import org.hibernate.type.StandardBasicTypes;
27  import org.hibernate.usertype.EnhancedUserType;
28  import org.joda.time.DateTimeZone;
29  import org.joda.time.LocalTime;
30  
31  /**
32   * Persist {@link org.joda.time.LocalDate} via hibernate.
33   * This uses a simple integer to store the time as milliseconds since 1970-1-1.
34   * The milliseconds will survive.
35   * 
36   * @author Mario Ivankovits (mario@ops.co.at)
37   */
38  public class PersistentLocalTimeAsTime implements EnhancedUserType, Serializable {
39  
40      public static final PersistentLocalTimeAsTime INSTANCE = new PersistentLocalTimeAsTime();
41  
42      private static final int[] SQL_TYPES = new int[] { Types.TIME, };
43  
44      public int[] sqlTypes() {
45          return SQL_TYPES;
46      }
47  
48      public Class returnedClass() {
49          return LocalTime.class;
50      }
51  
52      public boolean equals(Object x, Object y) throws HibernateException {
53          if (x == y) {
54              return true;
55          }
56          if (x == null || y == null) {
57              return false;
58          }
59          LocalTime dtx = (LocalTime) x;
60          LocalTime dty = (LocalTime) y;
61          return dtx.equals(dty);
62      }
63  
64      public int hashCode(Object object) throws HibernateException {
65          return object.hashCode();
66      }
67  
68      public Object nullSafeGet(ResultSet resultSet, String[] strings, Object object) throws HibernateException, SQLException {
69          return nullSafeGet(resultSet, strings[0]);
70  
71      }
72  
73      public Object nullSafeGet(ResultSet resultSet, String string) throws SQLException {
74          Object timestamp = StandardBasicTypes.TIME.nullSafeGet(resultSet, string);
75          if (timestamp == null) {
76              return null;
77          }
78  
79          return new LocalTime(timestamp, DateTimeZone.UTC);
80      }
81  
82      public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index) throws HibernateException, SQLException {
83          if (value == null) {
84              StandardBasicTypes.TIME.nullSafeSet(preparedStatement, null, index);
85          } else {
86              LocalTime lt = ((LocalTime) value);
87              Time time = new Time(lt.getMillisOfDay());
88              StandardBasicTypes.TIME.nullSafeSet(preparedStatement, time, index);
89          }
90      }
91  
92      public Object deepCopy(Object value) throws HibernateException {
93          return value;
94      }
95  
96      public boolean isMutable() {
97          return false;
98      }
99  
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 }