|
1
|
/**
|
|
2
|
* Copyright (C) 2007 EDIT
|
|
3
|
* European Distributed Institute of Taxonomy
|
|
4
|
* http://www.e-taxonomy.eu
|
|
5
|
*
|
|
6
|
* The contents of this file are subject to the Mozilla Public License Version 1.1
|
|
7
|
* See LICENSE.TXT at the top of this package for the full license terms.
|
|
8
|
*/
|
|
9
|
|
|
10
|
package eu.etaxonomy.cdm.persistence.hibernate;
|
|
11
|
|
|
12
|
import java.util.Set;
|
|
13
|
|
|
14
|
import org.apache.log4j.Logger;
|
|
15
|
import org.hibernate.HibernateException;
|
|
16
|
import org.hibernate.event.DeleteEvent;
|
|
17
|
import org.hibernate.event.DeleteEventListener;
|
|
18
|
|
|
19
|
import eu.etaxonomy.cdm.model.common.IRelated;
|
|
20
|
import eu.etaxonomy.cdm.model.common.RelationshipBase;
|
|
21
|
|
|
22
|
/**
|
|
23
|
* @author a.mueller
|
|
24
|
* @created 04.03.2009
|
|
25
|
* @version 1.0
|
|
26
|
*/
|
|
27
|
public class CdmDeleteListener implements DeleteEventListener {
|
|
28
|
private static final long serialVersionUID = -5511287200489449838L;
|
|
29
|
@SuppressWarnings("unused")
|
|
30
|
protected static final Logger logger = Logger.getLogger(CdmDeleteListener.class);
|
|
31
|
|
|
32
|
/* (non-Javadoc)
|
|
33
|
* @see org.hibernate.event.DeleteEventListener#onDelete(org.hibernate.event.DeleteEvent)
|
|
34
|
*/
|
|
35
|
public void onDelete(DeleteEvent event) throws HibernateException {
|
|
36
|
Object entity = event.getObject();
|
|
37
|
if(entity != null && RelationshipBase.class.isAssignableFrom(entity.getClass())) {
|
|
38
|
logger.info("Deleting " + entity);
|
|
39
|
deleteRelationship(event, entity);
|
|
40
|
}
|
|
41
|
}
|
|
42
|
|
|
43
|
/* (non-Javadoc)
|
|
44
|
* @see org.hibernate.event.DeleteEventListener#onDelete(org.hibernate.event.DeleteEvent, java.util.Set)
|
|
45
|
*/
|
|
46
|
public void onDelete(DeleteEvent event, Set transientEntities)
|
|
47
|
throws HibernateException {
|
|
48
|
Object entity = event.getObject();
|
|
49
|
if(entity != null && RelationshipBase.class.isAssignableFrom(entity.getClass())) {
|
|
50
|
logger.info("Deleting " + entity);
|
|
51
|
deleteRelationship(event, entity);
|
|
52
|
}
|
|
53
|
}
|
|
54
|
|
|
55
|
/**
|
|
56
|
* @param event
|
|
57
|
* @param entity
|
|
58
|
*/
|
|
59
|
private void deleteRelationship(DeleteEvent event, Object entity) {
|
|
60
|
RelationshipBase relationshipEntity = (RelationshipBase)entity;
|
|
61
|
if (relationshipEntity.isRemoved()){
|
|
62
|
Set<IRelated> deletedObjects = relationshipEntity.getDeletedObjects();
|
|
63
|
for (IRelated rel : deletedObjects){
|
|
64
|
if (rel != null){
|
|
65
|
logger.info("Updating related entity " + rel);
|
|
66
|
event.getSession().update(rel);
|
|
67
|
}
|
|
68
|
}
|
|
69
|
}
|
|
70
|
}
|
|
71
|
}
|