01: /*
02: * Copyright 2002-2006 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 LocalSessionFactoryBean if told to not expose a
30: * transaction-aware SessionFactory proxy. LocalSessionFactoryBean's default
31: * is still SessionFactory proxying, though, mainly to remain compatible with
32: * Hibernate 3.0 as well. Turn the "exposeTransactionAwareSessionFactory" flag
33: * to "false" to expose the raw Hibernate 3.1 CurrentSessionContext mechanism.
34: *
35: * <p>This CurrentSessionContext implementation can be specified in custom
36: * SessionFactory setup through the "hibernate.current_session_context_class"
37: * property, with the fully qualified name of this class as value.
38: *
39: * @author Juergen Hoeller
40: * @since 2.0
41: * @see SessionFactoryUtils#doGetSession
42: * @see LocalSessionFactoryBean#setExposeTransactionAwareSessionFactory
43: */
44: public class SpringSessionContext implements CurrentSessionContext {
45:
46: private final SessionFactoryImplementor sessionFactory;
47:
48: /**
49: * Create a new SpringSessionContext for the given Hibernate SessionFactory.
50: * @param sessionFactory the SessionFactory to provide current Sessions for
51: */
52: public SpringSessionContext(SessionFactoryImplementor sessionFactory) {
53: this .sessionFactory = sessionFactory;
54: }
55:
56: /**
57: * Retrieve the Spring-managed Session for the current thread, if any.
58: */
59: public Session currentSession() throws HibernateException {
60: try {
61: return (org.hibernate.classic.Session) SessionFactoryUtils
62: .doGetSession(this .sessionFactory, false);
63: } catch (IllegalStateException ex) {
64: throw new HibernateException(ex.getMessage());
65: }
66: }
67:
68: }
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