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Re: [eclipselink-users] Having issues with transaction in a pojo set up..
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Thanx Michael for the reply.
We did try with the @PersistenceContext EM and it works in a spring
environment(non jta ). But the issue is that in production we are
running in a JTA environment (in java ee with ejbs and spring ) and if
i inject the Entity Managers through the @PersistenceContext EM it
doesn't work . The issue is that I keep getting an EntityManager each
time. Please refer to this thread
http://dev.eclipse.org/mhonarc/lists/eclipselink-users/msg07244.html
for the full description , With injecting the PersistenceUnit EMF it
is working in a container but it is not working in a stand alone
spring test environment.
Cheers
Vaidya
On Tue, Jul 17, 2012 at 4:44 PM, Michael O'Brien
<Michael.F.Obrien@xxxxxxxxx> wrote:
> Vaidya,
> You should be able to DI an @PersistenceContext EM instead of an @PersistenceUnit EMF - this works in the catalina only Tomcat 7 web container.
> I have the same spring configuration as yourself except that I use an EM instead of an EMF - here is a spring-test enabled unit test.
>
> @RunWith(SpringJUnit4ClassRunner.class)
> @ContextConfiguration(locations = {"classpath:resources/unittest-server-spring-platform-vigilance-derby-config.xml" }) // overrides setApplicationContext()
> @TransactionConfiguration(transactionManager = "transactionManager",defaultRollback = true)
> @Transactional
> //public abstract class SpringDAOAbstractTest<T> { // No extends interface will require a dynamic proxy via CGLIB and ASM
> public abstract class SpringDAOAbstractTest<T> implements ApplicationContextAware {
> /** The following set function is only required when we implement ApplicationContextAware - otherwise use Spring-Test DI */
> @Override
> public void setApplicationContext(ApplicationContext arg0) throws BeansException { }
>
> @Autowired
> private VigilanceDAOFacadeExport facade;
>
> And my DAO
> @Repository
> public abstract class VigilanceDAOFacadeAbstractImpl implements VigilanceDAOFacade {..}
> @Repository
> public class VigilanceDAOFacadeExportImpl extends VigilanceDAOFacadeAbstractImpl implements VigilanceDAOFacadeExport {
> @PersistenceContext(unitName="vigilanceClient")
> private EntityManager entityManager;
>
> @Transactional
> public List<VigilanceDispensableGeneric> getDispensableGenerics(Locale locale, boolean isEager) {
> CriteriaQuery<VigilanceDispensableGeneric> criteriaQuery = getCriteriaBuilder().createQuery(VigilanceDispensableGeneric.class);
> ...}
> }
>
>>my spring config xml does not override TX levels like your aspects though
>
> <context:annotation-config />
>
> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
> p:dataSource-ref="dataSource"
> p:entityManagerFactory-ref="entityManagerFactory" />
>
> <tx:annotation-driven />
>
>>I also defer to spring to manage the tx within the test (by using @Test alone) and dao methods (like an EE session bean) with no issues unless I use @NotTransactional in which case my criteria queries need to resolve lazy mappings via fetch joins.
>
> /Michael
>
>
>
> -----Original Message-----
> From: eclipselink-users-bounces@xxxxxxxxxxx [mailto:eclipselink-users-bounces@xxxxxxxxxxx] On Behalf Of vaidya nathan
> Sent: Tuesday, July 17, 2012 4:31 PM
> To: EclipseLink User Discussions
> Subject: [eclipselink-users] Having issues with transaction in a pojo set up..
>
> Hi Eclipselink users,
>
> Am having an issue with using eclipselink/spring in a non container
> pojo environment. Following is my setup . I have a DAO controlled by
> spring which uses the eclipselink entity manager . I inject the entity
> manager factory using the PersistenceUnit annotation (I had some
> issues using the EntityManager injected in a jta environment ), so
> want to inject the EntityManager Factory which according to the JPA
> spec is ok.. When I try to persist I am getting the following
> exception
>
>
> com.foo.foobar.common.dao.DAOException:
> Exception Description: No transaction is currently active
> at com.foo.foobar.cm.common.dao.eclipselink.EclipseLinkDAO.updateDataItem(BaseDAO.java:114)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
> at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
> at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
> at $Proxy29.updateStatus(Unknown Source)
>
> Following is my spring config..
>
> <context:annotation-config />
> <context:component-scan
> base-package="com.foo.foobar.cm.common.dao.eclipselink" />
> <bean id="entityManagerFactory"
> class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
> <property name="persistenceUnitName" value="PersistenceEl" />
> <property name="jpaDialect" ref="eclipseLinkDialect" />
> <property name="persistenceXmlLocation"
> value="classpath:META-INF/persistence-local-eclipse.xml" />
> <property name="dataSource" ref="dataSource" />
> <property name="jpaVendorAdapter">
> <bean class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter">
> <property name="showSql" value="true" />
> <property name="generateDdl" value="false" />
> </bean>
> </property>
> <property name="jpaPropertyMap">
> <map>
> <entry key="eclipselink.jdbc.native-sql" value="false" />
> <entry key="eclipselink.weaving" value="false" />
> <entry key="eclipselink.persistence-context.flush-mode" value="AUTO" />
> <entry key="eclipselink.logging.logger"
> value="org.eclipse.persistence.logging.DefaultSessionLog" />
> <entry key="eclipselink.logging.level" value="FINE" />
> <entry key="eclipselink.orm.throw.exceptions" value="true" />
> <entry key="eclipselink.logging.exceptions" value="true" />
> </map>
> </property>
> </bean>
>
> <bean id="eclipseLinkDialect"
> class="org.springframework.orm.jpa.vendor.EclipseLinkJpaDialect" />
> <!-- the transactional advice (what 'happens'; see the <aop:advisor/>
> bean below) -->
> <tx:advice id="txAdvice" transaction-manager="transactionManager">
> <!-- the transactional semantics... -->
> <tx:attributes>
> <!-- all methods starting with 'get' are read-only -->
> <tx:method name="testGet*" propagation="SUPPORTS"
> read-only="true" />
> <!-- other methods use the default transaction settings (see below) -->
> <tx:method name="*" propagation="REQUIRES_NEW" read-only="false" />
> </tx:attributes>
> </tx:advice>
>
> <aop:config>
> <aop:pointcut id="serviceOperation"
> expression="execution(* com.foo.foobar.cm.common.dao.*.*(..))" />
> <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" />
> </aop:config>
>
> <bean id="transactionManager"
> class="org.springframework.orm.jpa.JpaTransactionManager">
> <property name="entityManagerFactory" ref="entityManagerFactory" />
> <property name="jpaDialect" ref="eclipseLinkDialect" />
> <property name="nestedTransactionAllowed" value="true" />
> </bean>
>
>
>
> persistence file is as follows
>
> <?xml version="1.0" encoding="UTF-8"?>
>
> <persistence version="1.0"
> xmlns="http://java.sun.com/xml/ns/persistence";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
> http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd";>
>
> <persistence-unit name="MABPersistenceEl" transaction-type="RESOURCE_LOCAL">
> <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
> <non-jta-data-source>pmabDataSource</non-jta-data-source>
>
> // bunch of classes ommited here for brevity
>
> <exclude-unlisted-classes />
> </persistence-unit>
> </persistence>
>
>
>
>
> my test is as follows
>
> @Test
> @Transactional(propagation=Propagation.REQUIRES_NEW)
> @Rollback(false)
> public void testReferenceDataItems()
> {
> // Get inStatus and populate it .. dont set the id.
> someStatus = (Foo) myDAO.updateStatus(inStatus);
> }
>
>
> and in myDAO i have the following code
>
> public abstract BaseDAO
> {
>
> @PersistenceUnit(unitName="PersistenceEl")
> private EntityManagerFactory entityManagerFactory;
>
> public SomeStatus updateDataItem(SomeStatus inStatus)
> {
> EntityManager em=entityManagerFactory.createEntityManager();
> //check for id,, assume null (not shown for brevity)
> em.persist(inStatus);
> em.flush(); // it craps out here..
> SomeStatus t1= (T)emgr.find(SomeStatus.class,inStatus.getId()); //
> return t1;
> }
> }
>
>
>
> When I had a similiar issue in hibernate (we are involving in
> converting from hibernate to eclipselink , fyi) , we used the
> following extra property in the jpa property map
> <entry key="hibernate.current_session_context_class"
> value="org.springframework.orm.hibernate3.SpringSessionContext" />
> and it started working.
>
> Can some one please help me.. ? We are totally struck because of this
> issue .Is there an equivalent eclipselink specific property that i
> need to add . Has anyone tried this approach . When we tried the
> entity Manager it works in the above set up , but it is not working in
> a jta setup as the Spring Shared EntityManager Creator creates a new
> entity manager everytime, so we would like to inject the
> EntityManagerFactory itself...
>
> Cheers
> Vaidya
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