Question

I am trying to use hibernate with annotations. I annotated my class with @Entity (Made sure that this is javax.persistance.Entity instead of Hibernate’s entity) and @Table.

When I am trying to query the table with

session.createQuery("from HibernateMatchedInvoiceItem").list()

But this is failing with following exception

caused by: org.hibernate.hql.ast.QuerySyntaxException: HibernateMatchedInvoiceItem is not mapped [from HibernateMatchedInvoiceItem]

my session factory is defined as follows.

   <bean id="SessionFactory"
      class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
      parent="AbstractSessionFactory" depends-on="AppConfigHelper">
    <property name="hibernateProperties">
      <props>
        <prop key="hibernate.dialect">org.hibernate.dialect.OracleDialect</prop>
     </props>
    </property>
    <property name="dataSource" ref="dataSource" />

I didn’t define persistant.xml file. Is it the reason behind this exception?
My doubt is that, since everything hibernate wants(database connection & class mapping) is specified through configuration and annotations, why do we need to specify persistance.xml file explicitly?

Answer 1

If you’re using annotations then you have to use class=”org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean”

Example :

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="annotatedClasses">
        <list>
            <value>package.classname</value>
        </list>
    </property>