Integration testing using SpringJUnit4ClassRunner giving LazyInitializaException

[saurabhdeswal123]

Hi,

I really need help on this one. I am using spring 3.0.0 and hibernate version 3.2.6.ga. I have my spring-configuration as follows.
<code><?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schem...-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schem...ing-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schem...ng-aop-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"
default-init-method="init">

<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverM anagerDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url"
value="jdbc:oracle:thin:@ora-dev3-custom-d1.vmware.com:1521:VMDEVPTL" />
<property name="username" value="XXVMPORTAL" />
<property name="password" value="xxvmportal_0ne" />
</bean>

<tx:annotation-driven transaction-manager="transactionManager"
proxy-target-class="true" />
<context:annotation-config />
<context:component-scan base-package="com.vmaware" />

<!-- Transaction Manager -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.Hibernat eTransactionManager">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>


<!-- Hibernate Session Factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotati on.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses">
<list>
<value>com.vmware.core.dlg.domain.DownloadGroup</value>
<value>com.vmware.core.dlg.domain.DownloadGroupCom ment</value>
</list>
</property>
<property name="mappingResources">
<list>
<value>com/vmware/core/sca/admin/domain/hbm/User.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Orac le10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
<!-- value>hibernate.dialect=org.hibernate.dialect.Orac le9Dialect</value -->
</property>
</bean>

<bean id="downloadGroupDao" class="com.vmware.core.dlg.dao.impl.DownloadGroupD aoImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="downloadGroupService" class="com.vmware.core.dlg.service.impl.DownloadGr oupServiceImpl">
<property name="downloadGroupDao" ref="downloadGroupDao" />
</bean>


</beans></code>

My DAO class extends HibernateDAOSupport and i am doing all the CRUD operations using getHibernateTemplate().*** methods. Secondly i have my service layer on which i have put the @Transactional Attrbutes.....it looks like this
<code>private IDownloadGroupDao downloadGroupDao;


public void setDownloadGroupDao(IDownloadGroupDao downloadGroupDao) {
this.downloadGroupDao = downloadGroupDao;
}

@Transactional(propagation=Propagation.REQUIRED,re adOnly=true, rollbackFor=Throwable.class)
public DownloadGroup getDownloadGroupById(long id) throws DAOException{
try{
return downloadGroupDao.getDownloadGroupById(id);
}catch(Exception e){
String message = "Exception Occured while retriving the information for Download Group Id = "+id;
logger.log(Level.ERROR,message);
throw new DAOException(message, e);
}
}

@Transactional(propagation=Propagation.REQUIRED,re adOnly=false, rollbackFor=Throwable.class)
public DownloadGroup updateDownloadGroup(DownloadGroup downloadGroup)throws DAOException{
try{
return downloadGroupDao.updateDownloadGroup(downloadGroup );
}catch(Exception e){
String message = "Exception Occured while updating the information for Download Group Id = "+downloadGroup.getDownloadGroupId();
logger.log(Level.ERROR,message);
throw new DAOException(message, e);
}
}
</code>

Now i am writing my test case as follows:

<code>@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"/com/vmware/core/sca/resources/test-spring-config-blueprint.xml"})
public class DownloadGroupServiceTest{
private IDownloadGroupService downloadGroupService;

@Resource
public void setDownloadGroupService(IDownloadGroupService downloadGroupService) {
this.downloadGroupService = downloadGroupService;
}
// @Test
public void testGetDownloadGroupById() throws DAOException{
DownloadGroup downloadGroup = downloadGroupService.getDownloadGroupById(125);
System.out.println(downloadGroup.getBaseServerURL( ));
System.out.println(downloadGroup.getDownloadHeader ());
//System.out.println(downloadGroup.getCreatedBy().ge tEmailId());
downloadGroup.setDlgFlowStatus("My New Status 123");

}</code>

This code gives me org.hibernate.LazyInitializationException: could not initialize proxy - no Session exception.

I thought that when i have described my transaction on service methods, it should start a hibernate session there itself, but its not the case.

I have attached the error log, with this post, please take a look. I can see spring loading my Service bean and also identifying the Transactional attribute.

By the way this test case works if i add @Transaction on the test class, which i am not at all able to understand. Please clarify this doubt.