Transaction does not work

[lfelipeas]

I have a method where I create a new transaction to persist some objects. But when it goes to commit it simply does nothing. Passes by.

Here is the code:

@Transactional
     public void insertWithTransaction(PmnGrupoAssistenciaTecnica grupoAstec, PmnProfissionalUtilizado profUtil, 
               PmnGrupoProfissional grupoPro) {
          Transaction tx = ((Session) (getEntityManager().getDelegate())).getTransaction();
          try {
               tx.begin();
               getEntityManager().persist(grupoAstec);
               getEntityManager().persist(profUtil);
               getEntityManager().persist(grupoPro);
               tx.commit();
          }
          catch(Throwable e) {
               tx.rollback();
               e.printStackTrace();
          }
     }

Here goes my persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!-- Persistence deployment descriptor for dev profile -->
<persistence 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" 
             version="1.0">
             
   <persistence-unit name="BL" transaction-type="JTA">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <jta-data-source>java:/BLDatasource</jta-data-source>
      <!-- The <jar-file> element is necessary if you put the persistence.xml in the WAR and the classes in the JAR -->
      <!--
      <jar-file>../../vehicles.jar</jar-file>
      -->
      <properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9iDialect"/>
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.format_sql" value="true"/>
         <property name="jboss.entity.manager.factory.jndi.name" value="java:/BLEntityManagerFactory"/>
      </properties>
   </persistence-unit>
    
</persistence>

And my components.xml:

<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
            xmlns:core="http://jboss.com/products/seam/core"
            xmlns:persistence="http://jboss.com/products/seam/persistence"
            xmlns:drools="http://jboss.com/products/seam/drools"
            xmlns:bpm="http://jboss.com/products/seam/bpm"
            xmlns:security="http://jboss.com/products/seam/security"
            xmlns:mail="http://jboss.com/products/seam/mail"
            xmlns:web="http://jboss.com/products/seam/web"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xmlns:transaction="http://jboss.com/products/seam/transaction"
            xsi:schemaLocation=
                "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.2.xsd
                 http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.2.xsd
                 http://jboss.com/products/seam/drools http://jboss.com/products/seam/drools-2.2.xsd
                 http://jboss.com/products/seam/bpm http://jboss.com/products/seam/bpm-2.2.xsd
                 http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.2.xsd
                 http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-2.2.xsd
                 http://jboss.com/products/seam/web http://jboss.com/products/seam/web-2.2.xsd
                 http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.2.xsd
                 http://jboss.com/products/seam/transaction http://jboss.com/products/seam/transaction-2.2.xsd">

   <component name="DATE_FORMATTER" class="org.domain.bl.converter.DateFormatter"  auto-create="true" scope="application" >
       <property name="timeZone">#{timeZone}</property>
   </component>
   
   <core:init debug="true" jndi-pattern="@jndiPattern@"/>

   <core:manager concurrent-request-timeout="500"
                 conversation-timeout="120000"
                 conversation-id-parameter="cid"
                 parent-conversation-id-parameter="pid"
                 uri-encoding="ISO-8859-1"/>
              

   <!-- Make sure this URL pattern is the same as that used by the Faces Servlet -->
   <web:hot-deploy-filter url-pattern="*.seam"/>
   <web:character-encoding-filter override-client="true" encoding="ISO-8859-1"></web:character-encoding-filter>           
        
        <persistence:managed-persistence-context name="entityManager" auto-create="true"
                      persistence-unit-jndi-name="java:/BLEntityManagerFactory" />                      

        <drools:rule-base name="securityRules">
      <drools:rule-files>
         <value>/security.drl</value>
      </drools:rule-files>
        </drools:rule-base>

        <security:rule-based-permission-resolver security-rules="#{securityRules}"/>

        <security:identity authenticate-method="#{authenticator.authenticate}" remember-me="true"/>

        <event type="org.jboss.seam.security.notLoggedIn">
      <action execute="#{redirect.captureCurrentView}"/>
        </event>
        <event type="org.jboss.seam.security.loginSuccessful">
      <action execute="#{redirect.returnToCapturedView}"/>
        </event>

     <event type="org.jboss.seam.exceptionHandled">
          <action execute="#{redirect.returnToCapturedView}"/>
     </event>

   <mail:mail-session host="localhost" port="25"/>
   
   <!-- For use with jBPM pageflow or process management -->
   <!--
   <bpm:jbpm>
      <bpm:process-definitions></bpm:process-definitions>
      <bpm:pageflow-definitions></bpm:pageflow-definitions>
   </bpm:jbpm>
   -->

</components>

Can somebody help me?

Thanks!

[lvdberg]

Hi,

try to get some experience with the way how Seam takes care of transactions. The Transactional annotation is sufficient as long as the bean is a Seam-managed bean (it must have a Name annotation).

Let Seam do the hard work for you.

Leo

[lfelipeas]

My bean is Seam-managed bean, it has a Name annotation.

[lvdberg]

Hi,

I mean that you don't need to include transaction code in your bean. The Transactional should be sufficient, as long as the bean is in scope (is there an active long-running conversation??)

Leo

[lfelipeas]

No, there isn't.
My problem is that my FlushMode was set Manual, and when I was commiting nothing happened.
So, I set to AUTO and then he did the commit.

Thanks for your help!

[lvdberg]

Hi Luiz,

I don't think you're getting my point at the moment, so a simple example might work better.

@Name("yourBean")
@Scope(Conversation)
public class YourClass implements ...{

@In EntityManager entityManager;

... // The rest of your bean
@Transactional
public void insertWithTransaction(PmnGrupoAssistenciaTecnica grupoAstec, PmnProfissionalUtilizado profUtil, 
               PmnGrupoProfissional grupoPro) {

     entityManager.persist(profUtil);
     entityManager.persist(grupoPro);
        entityManager.flush(); // Needed when formanual flush
}


}

If you have set up Seam correctly, this should work.It interception which means, the simple Tranaction annotation cuases Seam to wrap the method call in a Transaction, so there is NO NEED, to interact with the transaction yourself.

The (long-running) conversation is something you need to begin yourself, you can add elements in pages.xml, so its done automatically, or you create a create-annotated metghod which you call when you enter the page.

Leo

P.S. Please read the documentation and look at the examples first before using Seam. Both are really good and give you a good start. If you want more in-depth info, I recommend the Seam in Action book.