HibernateConfig.xml

<hibernate-configuration>
    <session-factory name="com.rci.services.offer.SessionFactory">
    <property name="hibernate.connection.datasource">jdbc/OfferDataSource</property>
    <property name="hibernate.current_session_context_class">jta</property>
    <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>

    <!---XA transaction--->
   <property name="hibernate.transaction.manager_lookup_class">org.hibernate.transaction.WeblogicTransactionManagerLookup</property>
    <property name="hibernate.transaction.factory_class">org.hibernate.transaction.JTATransactionFactory</property>
     <property name="jta.UserTransaction">java:comp/UserTransaction</property>

UserTransaction tx = null;
      try{
      tx = (UserTransaction)new InitialContext().lookup("java:comp/UserTransaction");
      tx.begin();
      HibernateConfig objHbCfg = null;
      objHbCfg = OfferHibernateUtil.getHibernateConfig(OfferServiceConstant.OFFER_DOMAIN);
      Session session1 = objHbCfg.currentSession(HibernateConfigType.OFFER);

      OfferPo offerPo= new OfferPo();
      Long offerId= new Long(2577);
      
      Criteria crit = session1.createCriteria(OfferPo.class);
      crit.add(Restrictions.eq("offerId", offerId));
      offerPo = (OfferPo) crit.list().get(0);
      String processId = offerPo.getOfferProcessId();