01: /*
02: * Copyright 2002-2007 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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:
17: package org.springframework.orm.hibernate3;
18:
19: import org.hibernate.HibernateException;
20: import org.hibernate.classic.Session;
21: import org.hibernate.context.CurrentSessionContext;
22: import org.hibernate.engine.SessionFactoryImplementor;
23:
24: /**
25: * Implementation of Hibernate 3.1's CurrentSessionContext interface
26: * that delegates to Spring's SessionFactoryUtils for providing a
27: * Spring-managed current Session.
28: *
29: * <p>Used by Spring's {@link LocalSessionFactoryBean} when told to
30: * expose a transaction-aware SessionFactory.
31: *
32: * <p>This CurrentSessionContext implementation can also be specified in custom
33: * SessionFactory setup through the "hibernate.current_session_context_class"
34: * property, with the fully qualified name of this class as value.
35: *
36: * @author Juergen Hoeller
37: * @since 2.0
38: * @see SessionFactoryUtils#doGetSession
39: * @see LocalSessionFactoryBean#setExposeTransactionAwareSessionFactory
40: */
41: public class SpringSessionContext implements CurrentSessionContext {
42:
43: private final SessionFactoryImplementor sessionFactory;
44:
45: /**
46: * Create a new SpringSessionContext for the given Hibernate SessionFactory.
47: * @param sessionFactory the SessionFactory to provide current Sessions for
48: */
49: public SpringSessionContext(SessionFactoryImplementor sessionFactory) {
50: this .sessionFactory = sessionFactory;
51: }
52:
53: /**
54: * Retrieve the Spring-managed Session for the current thread, if any.
55: */
56: public Session currentSession() throws HibernateException {
57: try {
58: return (org.hibernate.classic.Session) SessionFactoryUtils
59: .doGetSession(this .sessionFactory, false);
60: } catch (IllegalStateException ex) {
61: throw new HibernateException(ex.getMessage());
62: }
63: }
64:
65: }
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