Spring 3 Annotations - HibernateDaoSupport - Repository Requires Session Factory

Question

I am getting an exception saying :

java.lang.IllegalArgumentException: 'sessionFactory' or 'hibernateTemplate' is required

When trying to use the @Repository annotation on a HibernateDaoSupport class. The error message is straightforward, in order to create the Repository it needs a sessionFactory. However,I have defined a session factory in my XML:

<!-- Hibernate -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dashDataSource" />
        <property name="annotatedClasses">
            <list>
                <value>com.mycomp.myapp.Category</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
            </props>
        </property>
    </bean>

So I'm not sure how to give the repository the SessionFactory that it requires while it's creating it's annotation driven beans, I attempted to do the following:

 @Autowired
    protected HibernateTemplate createHibernateTemplate(SessionFactory sessionFactory) {
        return super.createHibernateTemplate(sessionFactory);
    }

But this does not solve the problem, likely because the repository needs that property while instantiating, not just when performing an action. Unfortunately, I don't know how to get around this problem because there are no constructors or initialization methods to override with a @Autowired annotation.

I checked to make sure the sessionFactory bean is being created and can be Autowired, and that is fine.

You may not want to use Hibernatetemplate anymore as it does not offer much benefit http://blog.springsource.org/2007/06/26/so-should-you-still-use-springs-hibernatetemplate-andor-jpatemplate/ — vsingh, Nov 17 '11 at 18:16

score 36 · Accepted Answer · answered Jul 12 '10 at 17:56

36

HibernateDaoSupport is supplied with SessionFactory via setSessionFactory(). However, setSessionFactory() is final, so you can't override it to add an @Autowired annotation. But you can apply @Autowired to the arbitrary method and call setSessionFactory() from it:

@Autowired
public void init(SessionFactory factory) {
    setSessionFactory(factory);
}

answered Jul 12 '10 at 17:56

axtavt

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awesome, thanks! I already started to go down the route of using the session factory directly, but was struggling to open transactions, I think I will just go with the DAOSupport though, as it works great for my simple purposes. – walnutmon Jul 12 '10 at 18:05

score 6 · Answer 2 · answered Feb 04 '11 at 18:30

6

You can also define which session factory you want to use (if you have more than one, for instance), by using the @Qualifier annotation:

@Autowired
public MyClassImpl(@Qualifier("myOtherSessionFactory") SessionFactory sessionFactory) {
    setSessionFactory(sessionFactory);
}

You can also toggle between data sources by extending the AbstractRoutingDataSource. See this page.

answered Feb 04 '11 at 18:30

atrain

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atrain@ If we separate data sources, do we need to create separate sessionFactories ? if yes, Can you please give an example how to use (inject) two different session Factories in the DAO implementation ( which implements HibernateDaoSupport ) – learner Oct 25 '21 at 01:37

Spring 3 Annotations - HibernateDaoSupport - Repository Requires Session Factory

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