Examples of org.hibernate.Session.beginTransaction()

org.hibernate.Session.beginTransaction()
Begin a unit of work and return the associated Transaction object. If a new underlying transaction is required, begin the transaction. Otherwise continue the new work in the context of the existing underlying transaction. The class of the returned Transaction object is determined by the property hibernate.transaction_factory. @return a Transaction instance @throws HibernateException @see Transaction


      @Override
      public String call() throws Exception {
        Session session = openSession();


        Transaction transaction = session.beginTransaction();
        final Novel novel = (Novel) session.get( Novel.class, "novel-1" );
        session.delete( novel );
        transaction.commit();


        return novel.get_rev();

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      @Override
      public String call() throws Exception {
        Session session = openSession();


        Transaction transaction = session.beginTransaction();
        final Animal animal = (Animal) session.get( Animal.class, "animal-1" );
        animal.setName( "Xavier" );
        transaction.commit();


        return animal.getRevision();

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      public String call() throws Exception {
        Session session = openSession();


        Animal berta = createAndPersistAnotherAnimal( session );


        Transaction transaction = session.beginTransaction();
        final Zoo zoo = (Zoo) session.get( Zoo.class, "zoo-1" );
        zoo.getAnimals().add( berta );
        transaction.commit();


        return zoo.getRevision();

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    return Executors.newSingleThreadExecutor().submit( new Callable<String>() {


      @Override
      public String call() throws Exception {
        Session session = openSession();
        Transaction transaction = session.beginTransaction();


        final Zoo zoo = (Zoo) session.get( Zoo.class, "zoo-1" );
        zoo.setName( "Hilwema" );


        transaction.commit();

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      @Override
      public String call() throws Exception {
        Session session = openSession();


        Transaction transaction = session.beginTransaction();
        final Project project = (Project) session.get( Project.class, "project-1" );


        Contributor sanne = new Contributor();
        sanne.setId( "contributor-2" );
        sanne.setName( "Sanne" );

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  private final OscarWildePoem ballade = new OscarWildePoem( 3L, "Ballade De Marguerite", "Oscar Wilde", new GregorianCalendar( 1881, 3, 1 ).getTime() );


  @Before
  public void init() {
    Session session = openSession();
    Transaction transaction = session.beginTransaction();
    session.persist( portia );
    session.persist( athanasia );
    session.persist( ballade );
    transaction.commit();
    session.clear();

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  }


  @After
  public void tearDown() {
    Session session = openSession();
    Transaction tx = session.beginTransaction();
    delete( session, portia );
    delete( session, athanasia );
    delete( session, ballade);
    tx.commit();
    session.clear();

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  }


  @Test
  public void testListMultipleResultQueryWithFirstResultAndMaxRows() throws Exception {
    Session session = openSession();
    Transaction transaction = session.beginTransaction();


    String nativeQuery = "MATCH ( n:" + TABLE_NAME + " { author:'Oscar Wilde' } ) RETURN n ORDER BY n.name DESC";
    @SuppressWarnings("unchecked")
    List<OscarWildePoem> result = session.createSQLQuery( nativeQuery )
        .addEntity( OscarWildePoem.TABLE_NAME, OscarWildePoem.class )

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  }


  @Test
  public void databaseAccessWithCredentialsShouldSucceed() {
    Session session = sessions.openSession();
    Transaction transaction = session.beginTransaction();


    Flower flower = new Flower();
    flower.setId( "1" );
    flower.setName( "Caltha palustris" );

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    session.persist( flower );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();


    Flower loadedFlower = (Flower) session.get( Flower.class, flower.getId() );
    assertNotNull( loadedFlower );
    assertEquals( flower.getName(), loadedFlower.getName() );

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