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Java > Open Source Codes > org > hibernate > ejb > EntityManagerImpl


1 //$Id: EntityManagerImpl.java,v 1.8 2005/07/21 00:08:34 epbernard Exp $
2 package org.hibernate.ejb;
3
4 import javax.persistence.PersistenceContextType;
5
6 import org.hibernate.Session;
7 import org.hibernate.SessionFactory;
8 import org.hibernate.engine.SessionImplementor;
9
10 /**
11  * @author Gavin King
12  */
13 public class EntityManagerImpl extends AbstractEntityManagerImpl {
14
15     protected Session session;
16     protected SessionFactory sessionFactory;
17     protected boolean open;
18
19     public EntityManagerImpl(SessionFactory sessionFactory, PersistenceContextType type) {
20         super( type );
21         this.sessionFactory = sessionFactory;
22         open = true;
23     }
24
25     public Session getSession() {
26
27         if ( !open ) throw new IllegalStateException JavaDoc( "EntityManager is closed" );
28
29         if ( session == null ) {
30             session = sessionFactory.openSession();
31             if ( type == PersistenceContextType.TRANSACTION ) {
32                 ( (SessionImplementor) session ).setAutoClear( true );
33             }
34         }
35
36         return session;
37
38     }
39
40     public void close() {
41
42         if ( !open ) throw new IllegalStateException JavaDoc( "EntityManager is closed" );
43
44         open = false;
45         if ( session != null ) session.close();
46
47     }
48
49     public boolean isOpen() {
50         return open;
51     }
52
53 }
54
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