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1   /*
2    *  Copyright 2010, 2011 Christopher Pheby
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.jadira.usertype.dateandtime.joda;
17  
18  import java.sql.Timestamp;
19  
20  import org.hibernate.usertype.ParameterizedType;
21  import org.jadira.usertype.dateandtime.joda.columnmapper.TimestampColumnInstantMapper;
22  import org.jadira.usertype.spi.shared.AbstractVersionableUserType;
23  import org.jadira.usertype.spi.shared.IntegratorConfiguredType;
24  import org.joda.time.Instant;
25  
26  /**
27   * Persist {@link Instant} via Hibernate using a JDBC Timestamp datatype with a reference date.  - note that sub-second values will not
28   * be retained. 
29   *
30   * The type is stored using the timezone as configured 
31   * using Hibernate's configuration property 'hibernate.jdbc.time_zone' and presented in the
32   * JVM using the JVM's default zone. You can optionally override or use as an alternative to this property the 
33   * parameter 'databaseZone' on this type.
34   *
35   * Alternatively provide the 'javaZone' can be used to similarly configure the zone of the
36   * value on return from the database.
37   */
38  public class PersistentInstantAsTimestamp extends AbstractVersionableUserType<Instant, Timestamp, TimestampColumnInstantMapper> implements ParameterizedType, IntegratorConfiguredType {
39  
40      private static final long serialVersionUID = -1402055314572075132L;
41  
42      @Override
43      public int compare(Object o1, Object o2) {
44          return ((Instant) o1).compareTo((Instant) o2);
45      }
46  }