Injecting Entitymanager via XML and not annnotations

Question

What I am trying to do is inject through XML almost the same way that is done through A @PersistenceContext annotation. I am in need of this because of the fact I have differen

Answer 1

Use SharedEntityManagerBean - it creates a shared EntityManager for EntityManagerFactory the same way as @PersistenceContext:

<bean id="itemDaoStore1" class="ItemDaoImpl"> 
    <property name="entityManager">
        <bean class = "org.springframework.orm.jpa.support.SharedEntityManagerBean">
            <property name = "entityManagerFactory" ref="entityManagerFactory1"/>  
        </bean>
    </property>
</bean>

Answer 2

You can provide the persistence unit name in the xml configuration, using the SharedEntityManagerBean, like below:

<bean id="testDao" class="com.test.persistence.dao.BaseDAO">
    <property name="entityManager">
        <bean class="org.springframework.orm.jpa.support.SharedEntityManagerBean">
            <property name="persistenceUnitName" value="persistence-test-unit" />
        </bean>
    </property>
</bean>

of course, you can have the SharedEntityManagerBean as a separate bean

Here, I m injecting entityManager into BaseDAO as you're doing using @PersistenceContext(unitName="...")