TransactionRequiredException Executing an update/delete query

Question

Hi I am using hibernate JPA with spring and mongodb and i am running my application on Glassfish-4.0.

My service class is :

@Component
public class Test {
    @PersistenceContext
    EntityManager em;
    EntityManagerFactory emf;

    @Transactional
    public String persist(Details details) {
        details.getUsername();
        details.getPassword();

        Query query = em.createNativeQuery("db.details.find(username="+details.getUsername()+"&password="+details.getPassword());

        em.getTransaction().begin();
        em.persist(details);
        em.getTransaction().commit();
        em.flush();
        em.clear();
        em.close();
        query.executeUpdate();
        System.out.println("Sucessful!");
        return "persist";        
    }
}

And my spring-context.xml is :

<?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:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    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/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <context:component-scan base-package="com.javapapers.spring.mvc" />
    <context:annotation-config />
    <mvc:annotation-driven />
    <tx:annotation-driven transaction-manager="txManager" />
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
        <property name="persistenceUnitName" value="ogmTest"/>
    </bean>
    <bean id="txManager" class="org.springframework.transaction.jta.JtaTransactionManager">
    </bean>
</beans>

I have applied some changes in the code but their is no effect. Can anyone please help me to sort out this. Thanks in advance.

Answer 1

I am not sure if this will help your situation (that is if it stills exists), however, after scouring the web for a similar issue.

I was creating a native query from a persistence EntityManager to perform an update.

Query query = entityManager.createNativeQuery(queryString);

I was receiving the following error:

caused by: javax.persistence.TransactionRequiredException: Executing an update/delete query

Many solutions suggest adding @Transactional to your method. Just doing this did not change the error.

Some solutions suggest asking the EntityManager for a EntityTransaction so that you can call begin and commit yourself. This throws another error:

caused by: java.lang.IllegalStateException: Not allowed to create transaction on shared EntityManager - use Spring transactions or EJB CMT instead

I then tried a method which most sites say is for use application managed entity managers and not container managed (which I believe Spring is) and that was joinTransaction().

Having @Transactional decorating the method and then calling joinTransaction() on EntityManager object just prior to calling query.executeUpdate() and my native query update worked.

I hope this helps someone else experiencing this issue.