Examples of org.hibernate.Session.merge()

org.hibernate.Session.merge()
Copy the state of the given object onto the persistent object with the same identifier. If there is no persistent instance currently associated with the session, it will be loaded. Return the persistent instance. If the given instance is unsaved, save a copy of and return it as a newly persistent instance. The given instance does not become associated with the session. This operation cascades to associated instances if the association is mapped with cascade="merge".

The semantics of this method are defined by JSR-220. @param object a detached instance with state to be copied @return an updated persistent instance


    // node is now detached, but we have made no changes.  so attempt to merge it
    // into this new session; this should cause no updates...
    s = openSession();
    s.beginTransaction();
    node = ( Node ) s.merge( node );
    s.getTransaction().commit();
    s.close();


    assertUpdateCount( 0 );
    assertInsertCount( 0 );

View Full Code Here

    // as a control measure, now update the node while it is detached and
    // make sure we get an update as a result...
    node.setDescription( "new description" );
    s = openSession();
    s.beginTransaction();
    node = ( Node ) s.merge( node );
    s.getTransaction().commit();
    s.close();
    assertUpdateCount( 1 );
    assertInsertCount( 0 );
    ///////////////////////////////////////////////////////////////////////

View Full Code Here


    // parent is now detached, but we have made no changes.  so attempt to merge it
    // into this new session; this should cause no updates...
    s = openSession();
    s.beginTransaction();
    parent = ( Node ) s.merge( parent );
    s.getTransaction().commit();
    s.close();


    assertUpdateCount( 0 );
    assertInsertCount( 0 );

View Full Code Here

    // make sure we get an update as a result...
    ( ( Node ) parent.getChildren().iterator().next() ).setDescription( "child's new description" );
    parent.addChild( new Node( "second child" ) );
    s = openSession();
    s.beginTransaction();
    parent = ( Node ) s.merge( parent );
    s.getTransaction().commit();
    s.close();
    assertUpdateCount( 1 );
    assertInsertCount( 1 );
    ///////////////////////////////////////////////////////////////////////

View Full Code Here


    // entity is now detached, but we have made no changes.  so attempt to merge it
    // into this new session; this should cause no updates...
    s = openSession();
    s.beginTransaction();
    VersionedEntity mergedEntity = ( VersionedEntity ) s.merge( entity );
    s.getTransaction().commit();
    s.close();


    assertUpdateCount( 0 );
    assertInsertCount( 0 );

View Full Code Here

    document.getOwner().setPersonalInfo( new PersonalInfo( addr ) );


    // step4 we merge the document
    session = openSession();
    session.beginTransaction();
    session.merge( document );
    session.getTransaction().commit();
    session.close();


    // step5, final test
    session = openSession();

View Full Code Here

    // as a control measure, now update the node while it is detached and
    // make sure we get an update as a result...
    entity.setName( "new name" );
    s = openSession();
    s.beginTransaction();
    entity = ( VersionedEntity ) s.merge( entity );
    s.getTransaction().commit();
    s.close();
    assertUpdateCount( 1 );
    assertInsertCount( 0 );
    ///////////////////////////////////////////////////////////////////////

View Full Code Here


    // parent is now detached, but we have made no changes.  so attempt to merge it
    // into this new session; this should cause no updates...
    s = openSession();
    s.beginTransaction();
    VersionedEntity mergedParent = ( VersionedEntity ) s.merge( parent );
    s.getTransaction().commit();
    s.close();


    assertUpdateCount( 0 );
    assertInsertCount( 0 );

View Full Code Here


    // now try to reattch it
    SimpleJtaTransactionManagerImpl.getInstance().begin();
    s = openSession();
    try {
      s.merge( entity );
      s = applyNonFlushedChangesToNewSessionCloseOldSession( s );
      entity = ( VersionedEntity ) getOldToNewEntityRefMap().get( entity );
      SimpleJtaTransactionManagerImpl.getInstance().commit();
      fail( "was expecting staleness error" );
    }

View Full Code Here

    clearCounts();


    p.getDetails().setSomePersonalDetail( p.getDetails().getSomePersonalDetail() + " and big hands too" );
    SimpleJtaTransactionManagerImpl.getInstance().begin();
    s = openSession();
    p = ( Person ) s.merge( p );
    s = applyNonFlushedChangesToNewSessionCloseOldSession( s );
    p = ( Person ) getOldToNewEntityRefMap().get( p );
    SimpleJtaTransactionManagerImpl.getInstance().commit();


    assertInsertCount( 0 );

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.