| Hibernate SessionFactory as osgi:service [message #954965] |
Tue, 23 October 2012 07:49  |
 Alexander Kosarev
Messages: 3
Registered: October 2012 |
Junior Member |
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Hi all! I develop a project containing 2 bundles. In first bundle I described session factory and transaction manager and publish them as osgi services:
<bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" id="sessionFactory">
<property name="dataSource" ref="dataSource"/>
...
</bean>
<bean class="org.springframework.orm.hibernate4.HibernateTransactionManager" id="transactionManager"
p:sessionFactory-ref="sessionFactory"/>
<osgi:service id="sessionFactoryService" ref="sessionFactory" interface="org.hibernate.SessionFactory"/>
<osgi:service id="transactionManagerService" ref="transactionManager" interface="org.springframework.transaction.PlatformTransactionManager"/>
In second bundle I described references to these services:
<osgi:reference id="sessionFactory" bean-name="sessionFactory" interface="org.hibernate.SessionFactory"/>
<osgi:reference id="transactionManager" bean-name="transactionManager" interface="org.springframework.transaction.PlatformTransactionManager"/>
Contexts of both bundles have
<tx:annotation-driven transaction-manager="transactionManager"/>
I don't have any problems if I try to open new session and to use it. But if I try to get current session in second bundle (in first bundle it works fine), I get an error message:
Caused by: org.hibernate.HibernateException: No Session found for current thread
at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)
...
Is it real to work with session opened in another bundle?
Spring Framework version is 3.1.2, Hibernate - 4.1.7
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| Re: Hibernate SessionFactory as osgi:service [message #960948 is a reply to message #954965] |
Sat, 27 October 2012 19:31  |
Mastah Naleh
Messages: 32
Registered: April 2012 |
Member |
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From memory no AOP is done on proxy of services made by blueprint because spring can't see the annotation.
Though, you can export DAO class as services since the spring magic is already done.
And in OSGi you export final service implemented from interface (API). I think it's a bad design to expose hibernate session as a service, but I could be wrong.
API (define service)
Consumer (import API, consume provider service)
Provider (import API, export service )
[Updated on: Sat, 27 October 2012 19:34] Report message to a moderator |
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