Problem injecting sessionFactory by name

[dasikalyan]

I'm exploring ways to use springframework annotations on our existing application. It works well in the current state (spring 2.0.3 no annotations etc)

I got the DI working at the service layer. But it is failing in the DAO layer.
We have 3 session factory definitions and I'm trying to inject one of them in the DAO. When i try to use @Autowired it fails ( due to 3 bean definitions for the type). When I try to use @Resource with name="sessionFactory" (one of the bean names configured in our spring-beans.xml) , i get an error that says illegal argument exception

nested exception is java.lang.IllegalArgumentException: 'sessionFactory' or 'hibernateTemplate' is required
Caused by: java.lang.IllegalArgumentException: 'sessionFactory' or 'hibernateTemplate' is required
at org.springframework.orm.hibernate3.support.Hiberna teDaoSupport.checkDaoConfig(HibernateDaoSupport.ja va:115)
at org.springframework.dao.support.DaoSupport.afterPr opertiesSet(DaoSupport.java:44)

I'm trying with the following code, but the compiler wont let me put the @Resource on the constructor and setSessionFactory method is final in HibernateDaoSupport.

@Resource(name="sessionFactory")
private SessionFactory sessionFactory;
// public void setSessionFactory(SessionFactory sessionFactory) {
// this.sessionFactory = sessionFactory;
// }
public TPHibernateDAO(SessionFactory sessionFactory){
setSessionFactory(sessionFactory);
}

Can someone help me how to inject the sessionFactory by name using annotations?
I'm trying to do this with the new spring-framework-2.1-m1

[Mark Fisher]

Field injection for the sessionFactory is not an option since the base class does not actually have a 'sessionFactory' field. The setSessionFactory(..) method actually just instantiates and sets the 'hibernateTemplate' field. Therefore, one option would be to provide a bean definition for the hibernateTemplate (with a single property: 'sessionFactory') and then use field injection for that. Another option would be to provide your own method with a different name (due to the 'final' superclass version), and then call super.setSessionFactory(..) from your method.

[dasikalyan]

Thanks for your reply.
sounds like a good idea to me. I'll give it a try and will let you know.

[dasikalyan]

Mark,
I did the following.

In spring-beans.xml, I defined a new bean definition.

<bean id="hibernateTemplate"
	class="org.springframework.orm.hibernate3.HibernateTemplate">
	<property name="sessionFactory">
		<ref local="sessionFactory" />
	</property>
</bean>

In the DAO

	@Autowired
 	private HibernateTemplate hibernateTemplate;

I get the following error

org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'treatmentPatternDAOTarget': Injection of resources failed; nested exception is org.springframework.beans.factory.BeanCreationExce ption: Could not autowire field: private org.springframework.orm.hibernate3.HibernateTempla te com.gs.core.services.dao.hibernate.TreatmentPatter nHibernateDAO.hibernateTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefini tionException: No unique bean of type [org.springframework.orm.hibernate3.HibernateTempla te] is defined: expected single bean but found 0
Caused by: org.springframework.beans.factory.BeanCreationExce ption: Could not autowire field: private org.springframework.orm.hibernate3.HibernateTempla te com.gs.core.services.dao.hibernate.TreatmentPatter nHibernateDAO.hibernateTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefini tionException: No unique bean of type [org.springframework.orm.hibernate3.HibernateTempla te] is defined: expected single bean but found 0
Caused by: org.springframework.beans.factory.NoSuchBeanDefini tionException: No unique bean of type [org.springframework.orm.hibernate3.HibernateTempla te] is defined: expected single bean but found 0
at org.springframework.beans.factory.BeanFactoryUtils .beanOfTypeIncludingAncestors(BeanFactoryUtils.jav a:303)
at org.springframework.beans.factory.annotation.Autow iredAnnotationBeanPostProcessor.getBeanOfType(Auto wiredAnnotationBeanPostProcessor.java:178)
at org.springframework.beans.factory.annotation.Autow iredAnnotationBeanPostProcessor$AutowiredMember.au towireMember(AutowiredAnnotationBeanPostProcessor. java:222)
at org.springframework.beans.factory.annotation.Autow iredAnnotationBeanPostProcessor$AutowiringMetadata .autowireMembers(AutowiredAnnotationBeanPostProces sor.java:196)
at org.springframework.beans.factory.annotation.Autow iredAnnotationBeanPostProcessor.postProcessAfterIn stantiation(AutowiredAnnotationBeanPostProcessor.j ava:129)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:412)
at org.springframework.beans.factory.support.Abstract BeanFactory$1.getObject(AbstractBeanFactory.java:2 51)
at org.springframework.beans.factory.support.DefaultS ingletonBeanRegistry.getSingleton(DefaultSingleton BeanRegistry.java:156)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:248)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:160)
at org.springframework.beans.factory.support.DefaultL istableBeanFactory.preInstantiateSingletons(Defaul tListableBeanFactory.java:287)
at org.springframework.context.support.AbstractApplic ationContext.refresh(AbstractApplicationContext.ja va:352)
at org.springframework.test.AbstractSingleSpringConte xtTests.createApplicationContext(AbstractSingleSpr ingContextTests.java:199)
at org.springframework.test.AbstractSingleSpringConte xtTests.loadContextLocations(AbstractSingleSpringC ontextTests.java:179)
at org.springframework.test.AbstractSingleSpringConte xtTests.loadContext(AbstractSingleSpringContextTes ts.java:158)
at org.springframework.test.AbstractSpringContextTest s.getContext(AbstractSpringContextTests.java:105)
at org.springframework.test.AbstractSingleSpringConte xtTests.setUp(AbstractSingleSpringContextTests.jav a:87)
at junit.framework.TestCase.runBare(TestCase.java:125 )
at org.springframework.test.ConditionalTestCase.runBa re(ConditionalTestCase.java:69)
at junit.framework.TestResult$1.protect(TestResult.ja va:106)
at junit.framework.TestResult.runProtected(TestResult .java:124)
at junit.framework.TestResult.run(TestResult.java:109 )
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:2 08)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.runTests(RemoteTestRunner.java:478)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.run(RemoteTestRunner.java:344)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.main(RemoteTestRunner.java:196)

[dasikalyan]

Solved it by defining a pojo with a single property reference to sessionFactory. Defined a method injection and called super.setSessionFactory(...

thanks Mark.

[supermegapollo]

Solved it by defining a pojo with a single property reference to sessionFactory. Defined a method injection and called super.setSessionFactory(...

thanks Mark.

Hello, little old thread but I'll give a chance...

dasikalyan so you created a POJO with the single attribute "sessionFactory", I assume that this POJO was "HibernateTemplate", where did you located it on you classpath? I mean, in which package?

I guess the bean definition (spring-beans.xml) changed to point your POJO, right?

<bean id="hibernateTemplate"
	class="org.springframework.orm.hibernate3.HibernateTemplate">
	<property name="sessionFactory">
		<ref local="sessionFactory" />
	</property>
</bean>

Thx in advance for any help, tip or hint.