Examples of org.hibernate.Transaction

org.hibernate.Transaction
Allows the application to define units of work, while maintaining abstraction from the underlying transaction implementation (eg. JTA, JDBC).

A transaction is associated with a Session and is usually instantiated by a call to Session.beginTransaction(). A single session might span multiple transactions since the notion of a session (a conversation between the application and the datastore) is of coarser granularity than the notion of a transaction. However, it is intended that there be at most one uncommitted Transaction associated with a particular Session at any time.

Implementors are not intended to be threadsafe. @see Session#beginTransaction() @see org.hibernate.transaction.TransactionFactory @author Anton van Straaten

          .writeConcern( WriteConcernType.ACKNOWLEDGED );


    sessions = configuration.buildSessionFactory();


    Session session = sessions.openSession();
    Transaction transaction = session.beginTransaction();


    // when inserting a player with an associated course
    GolfPlayer ben = new GolfPlayer( 1L, "Ben", 0.1, new GolfCourse( 1L, "Bepple Peach" ) );
    session.persist( ben );


    transaction.commit();
    session.close();


    // then expect tuple and association operations using the configured write concerns
    verify( mockClient.getCollection( "GolfPlayer" ) ).insert( any( List.class ), eq( WriteConcern.REPLICA_ACKNOWLEDGED ) );
    verify( mockClient.getCollection( "Associations" ) ).update( any( DBObject.class ), any( DBObject.class ), anyBoolean(), anyBoolean(), eq( WriteConcern.ACKNOWLEDGED ) );

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  }


  @Test
  public void canUseObjectIdAssignedUponInsertInManyToManyAssociation() {
    OgmSession session = openSession();
    Transaction tx = session.beginTransaction();


    // given
    Snack nachos = new Snack( "nachos" );
    Snack frozenYogurt = new Snack( "frozen yogurt" );
    Ingredient milk = new Ingredient( "milk" );
    Ingredient salt = new Ingredient( "salt" );


    nachos.getIngredients().add( salt );
    salt.getContainedIn().add( nachos );


    frozenYogurt.getIngredients().add( milk );
    milk.getContainedIn().add( frozenYogurt );


    frozenYogurt.getIngredients().add( salt );
    salt.getContainedIn().add( frozenYogurt );


    // when
    session.persist( nachos );
    session.persist( frozenYogurt );
    session.persist( milk );
    session.persist( salt );


    tx.commit();
    session.clear();
    tx = session.beginTransaction();


    // then
    Snack frozenYogurtLoaded = (Snack) session.load( Snack.class, frozenYogurt.getId() );


    assertThat( frozenYogurtLoaded.getName() ).isEqualTo( "frozen yogurt" );
    assertThat( frozenYogurtLoaded.getIngredients() ).onProperty( "name" ).containsOnly( "salt", "milk" );


    tx.commit();
    session.clear();
    tx = session.beginTransaction();


    Ingredient milkLoaded = (Ingredient) session.load( Ingredient.class, milk.getId() );
    assertThat( milkLoaded.getName() ).isEqualTo( "milk" );
    assertThat( milkLoaded.getContainedIn() ).onProperty( "name" ).containsOnly( "frozen yogurt" );


    Ingredient saltLoaded = (Ingredient) session.load( Ingredient.class, salt.getId() );
    assertThat( saltLoaded.getName() ).isEqualTo( "salt" );
    assertThat( saltLoaded.getContainedIn() ).onProperty( "name" ).containsOnly( "nachos", "frozen yogurt" );


    tx.commit();
    session.close();
  }

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        .build();


    setupSessionFactory( new MongoDBDatastoreProvider( mockClient.getClient() ) );


    Session session = sessions.openSession();
    Transaction transaction = session.beginTransaction();


    // when merging the player with two associated courses
    GolfPlayer ben = new GolfPlayer( 1L, "Ben", 0.1, new GolfCourse( 1L, "Bepple Peach" ), new GolfCourse( 2L, "Ant Sandrews" ) );
    session.merge( ben );


    transaction.commit();
    session.close();


    // then expect updates to the player document using the configured write concern
    verify( mockClient.getCollection( "GolfPlayer" ), times( 2 ) ).update( any( DBObject.class ), any( DBObject.class ), anyBoolean(), anyBoolean(), eq( WriteConcern.MAJORITY ) );
  }

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        .build();


    setupSessionFactory( new MongoDBDatastoreProvider( mockClient.getClient() ), AssociationStorageType.ASSOCIATION_DOCUMENT );


    Session session = sessions.openSession();
    Transaction transaction = session.beginTransaction();


    // when merging the player with two associated courses
    GolfPlayer ben = new GolfPlayer( 1L, "Ben", 0.1, new GolfCourse( 1L, "Bepple Peach" ), new GolfCourse( 2L, "Ant Sandrews" ) );
    session.merge( ben );


    transaction.commit();
    session.close();


    // then expect one update to the association collection
    verify( mockClient.getCollection( "Associations" ), times( 1 ) ).update( any( DBObject.class ), any( DBObject.class ), anyBoolean(), anyBoolean(), eq( WriteConcern.MAJORITY ) );
  }

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  }


  @Test
  public void canUseGenerationTypeAutoWithObjectId() {
    OgmSession session = openSession();
    Transaction tx = session.beginTransaction();


    // given
    Singer gloria = new Singer( "Gloria" );


    // when
    session.persist( gloria );


    tx.commit();
    assertThat( gloria.getId() ).isNotNull();
    session.clear();
    tx = session.beginTransaction();


    Singer singerLoaded = (Singer) session.load( Singer.class, gloria.getId() );


    // then
    assertThat( singerLoaded.getName() ).isEqualTo( "Gloria" );


    tx.commit();
    session.close();
  }

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  }


  @Test
  public void stringUsedAsIdIsMappedToObjectId() {
    OgmSession session = openSession();
    Transaction tx = session.beginTransaction();


    // given
    Comedian monty = new Comedian( "Monty" );


    // when
    session.persist( monty );


    tx.commit();
    assertThat( monty.getId() ).isNotNull();
    session.clear();
    tx = session.beginTransaction();


    // then
    assertCountQueryResult( session, "db.Comedian.count({ \"_id\" : { \"$oid\" : \"" + monty.getId() + "\" }, \"name\" : \"Monty\" })", 1L);


    Comedian montyLoaded = (Comedian) session.load( Comedian.class, monty.getId() );
    assertThat( ObjectId.isValid( montyLoaded.getId() ) ).isTrue();
    assertThat( montyLoaded.getName() ).isEqualTo( "Monty" );


    tx.commit();
    session.close();
  }

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        .build();


    setupSessionFactory( new MongoDBDatastoreProvider( mockClient.getClient() ) );


    Session session = sessions.openSession();
    Transaction transaction = session.beginTransaction();


    // when removing the association
    GolfPlayer ben = new GolfPlayer( 1L, "Ben", 0.1 );
    session.merge( ben );


    transaction.commit();
    session.close();


    // then expect one call to update using the configured write concern
    verify( mockClient.getCollection( "GolfPlayer" ) ).update( any( DBObject.class ), any( DBObject.class ), anyBoolean(), anyBoolean(), eq( WriteConcern.MAJORITY ) );
  }

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        .build();


    setupSessionFactory( new MongoDBDatastoreProvider( mockClient.getClient() ) , AssociationStorageType.ASSOCIATION_DOCUMENT );


    Session session = sessions.openSession();
    Transaction transaction = session.beginTransaction();


    // when removing the association
    GolfPlayer ben = new GolfPlayer( 1L, "Ben", 0.1 );
    session.merge( ben );


    transaction.commit();
    session.close();


    // then expect one call to remove with the configured write concern
    verify( mockClient.getCollection( "Associations" ) ).remove( any( DBObject.class ), eq( WriteConcern.MAJORITY ) );
  }

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public class OneToOneInEntityMappingTest extends OgmTestCase {


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


    // Given, When
    Husband husband = new Husband( "alex" );
    husband.setName( "Alex" );
    session.persist( husband );


    Wife wife = new Wife( "bea" );
    wife.setName( "Bea" );
    husband.setWife( wife );
    wife.setHusband( husband );
    session.persist( wife );


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


    transaction = session.beginTransaction();


    // Then
    assertDbObject(
        session.getSessionFactory(),
        // collection
        "Wife",
        // query
        "{ '_id' : 'bea' }",
        // expected
        "{ " +
          "'_id' : 'bea', " +
          "'name' : 'Bea'," +
          "'husband' : 'alex'" +
        "}"
    );


    assertDbObject(
        session.getSessionFactory(),
        // collection
        "Husband",
        // query
        "{ '_id' : 'alex' }",
        // expected
        "{ " +
          "'_id' : 'alex', " +
          "'name' : 'Alex'," +
          "'wife' : 'bea'" +
        "}"
    );


    // Clean-Up
    husband = (Husband) session.get( Husband.class, husband.getId() );
    wife = (Wife) session.get( Wife.class, wife.getId() );
    session.delete( wife );
    session.delete( husband );


    transaction.commit();
    session.close();
  }

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    }
  }


  private Transaction beginTransaction(Session session) throws ClassNotFoundException, NoSuchMethodException,
      IllegalAccessException, InvocationTargetException {
    Transaction transaction = Helper.getTransactionAndMarkForJoin( session );
    transaction.begin();
    return transaction;
  }

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