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1 package org.sapia.regis.hibernate;
2
3 import org.hibernate.Session;
4 import org.hibernate.Transaction;
5 import org.sapia.regis.Node;
6 import org.sapia.regis.RWSession;
7 import org.sapia.regis.impl.NodeImpl;
8
9 public class HibernateRegisSession implements RWSession{
10
11 private Session session;
12 private Transaction tx;
13
14 HibernateRegisSession(Session deleg){
15 session = deleg;
16 }
17
18 public Node attach(Node node) {
19 return (Node)session.load(NodeImpl.class, (((NodeImpl)node).getId()));
20 }
21
22 public void begin() {
23 if(tx != null){
24 tx.commit();
25 }
26 tx = session.beginTransaction();
27 }
28
29 public void commit() {
30 if(tx == null){
31 throw new IllegalStateException  ("Session not in transaction");
32 }
33 tx.commit();
34 tx = null;
35 }
36
37 public void rollback() {
38 if(tx == null){
39 throw new IllegalStateException ("Session not in transaction");
40 }
41 try{
42 tx.rollback();
43 }finally{
44 tx = null;
45 }
46 }
47
48 public void close() {
49 Sessions.close();
50 if(session.isOpen()){
51 try{
52 session.flush();
53 }catch(RuntimeException e){
54 session.close();
55 throw e;
56 }
57 session.close();
58 }
59 }
60
61 }
62 |
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