4 Replies Latest reply on Jun 11, 2008 3:15 PM by Ulrike

    UPDATE Entity 'by mistake'?

    Ulrike Newbie

      I've detected a curious behavior in my application.


      I fetch an object from the database using


      MyObject obj = entityManager.find(MyObject.class, id);



      Then I change some field values.


      I never merge/persist this object and I never call flush(), but the changes go to the database anyway. (Yes, I want to go these changes to the database in this case, but there are some tables I should never update and I want to prevent updating/inserting 'by mistake'.)


      My EntityManager is injected via @In and calling entityManager.getFlushMode() returns AUTO. Can I change this to MANUAL for the whole application?


      components.xml:


      <persistence:managed-persistence-context name="entityManager" auto-create="true"
                      persistence-unit-jndi-name="java:/myserviceEntityManagerFactory" />



      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="myservice">
            <provider>org.hibernate.ejb.HibernatePersistence</provider>
            <jta-data-source>java:/myserviceDatasource</jta-data-source>
            <properties>
               <property name="hibernate.dialect" value="org.hibernate.dialect.OracleDialect"/>
               <property name="hibernate.hbm2ddl.auto" value="validate"/>
               <property name="hibernate.show_sql" value="true"/>
               <property name="hibernate.format_sql" value="true"/>
      
               <property name="jboss.entity.manager.factory.jndi.name"
                         value="java:/myserviceEntityManagerFactory"/>
               <property name="hibernate.default_schema" value="psoft"/>
               
               <property name="hibernate.connection.autocommit" value="false"/>
               
            </properties>
         </persistence-unit>
      </persistence>