Hibernate + Spring : Strange Behavior
Hi,
I am using a method in DAO which is of the following format:
public getAllCategories(){
return getHibernateTemplate().find(" from CategoryMaster ");
}
and it is returning a list of POJOs to the serviceClass that called this method. Till here its fine.
Spring Mapping:
-
THe DAO is enclosed in transactionManager in Spring Application-context.xml as follows:
<bean name="abstractSimpleWrite" lazy-init="true"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="hibernateTrMgr" />
</property>
<property name="transactionAttributeSource">
<bean
class="org.springframework.transaction.interceptor.MatchAlwaysTransactionAttributeSource">
<property name="transactionAttribute">
<ref bean="simpleWriteTrAttr" />
</property>
</bean>
</property>
</bean>
<bean id="simpleWriteTrAttr"
class="org.springframework.transaction.interceptor.DefaultTransactionAttribute">
<property name="propagationBehaviorName">
<value>PROPAGATION_REQUIRED</value>
</property>
<property name="isolationLevelName">
<value>ISOLATION_DEFAULT</value>
</property>
</bean>
The Strange Behavior-1:
When i run the application i get batch-update exception. But the point is that i haven't called any update methods then how is update being called (Also, i get update queries being printedd on the console. When debugging i found that just before the transaction ends or just before the service calass ends the updates are being called and i get batch exception.)
Strange Behavior-2:
And supposing that i call this method of DAO: findByExample("flagActive","Y"); i get the array list delivered from the service class also with out the update being called at all.
If i called the method: findByExample('flagActive','Y'); and in the same Service Method i call findByExample('flagActive','N'); Again to the end of the service layer just before the taransaction commits i get batch update exception.
Please help me ASAP.
Regards,
Kranthi
