Examples of org.hibernate.ogm.model.spi.Tuple

org.hibernate.ogm.model.spi.Tuple
Represents a Tuple (think of it as a row) A tuple accepts a TupleShapshot which is a read-only state of the tuple at creation time. A tuple collects changes applied to it. These changes are represented by a list of TupleOperation. It is intended that GridDialects retrieve to these actions and reproduce them to the datastore. The list of changes is computed based off the snapshot. @author Emmanuel Bernard <emmanuel@hibernate.org> @author Sanne Grinovero <sanne@hibernate.org>

    return queue != null && queue.contains( key );
  }


  @Override
  public Tuple createTuple(EntityKeyMetadata entityKeyMetadata, TupleContext tupleContext) {
    return new Tuple( new MongoDBTupleSnapshot( new BasicDBObject(), entityKeyMetadata, SnapshotType.INSERT ) );
  }

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  }


  @Override
  public Tuple createTuple(EntityKey key, TupleContext tupleContext) {
    DBObject toSave = this.prepareIdObject( key );
    return new Tuple( new MongoDBTupleSnapshot( toSave, key.getMetadata(), SnapshotType.INSERT ) );
  }

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  public void forEachTuple(ModelConsumer consumer, EntityKeyMetadata... entityKeyMetadatas) {
    DB db = provider.getDatabase();
    for ( EntityKeyMetadata entityKeyMetadata : entityKeyMetadatas ) {
      DBCollection collection = db.getCollection( entityKeyMetadata.getTable() );
      for ( DBObject dbObject : collection.find() ) {
        consumer.consume( new Tuple( new MongoDBTupleSnapshot( dbObject, entityKeyMetadata, UPDATE ) ) );
      }
    }
  }

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  }


  private ClosableIterator<Tuple> doCount(MongoDBQueryDescriptor query, DBCollection collection) {
    long count = collection.count( query.getCriteria() );
    MapTupleSnapshot snapshot = new MapTupleSnapshot( Collections.<String, Object>singletonMap( "n", count ) );
    return CollectionHelper.newClosableIterator( Collections.singletonList( new Tuple( snapshot ) ) );
  }

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    }
  }


  private void executeBatchUpdate(Map<DBCollection, BatchInsertionTask> inserts, InsertOrUpdateTupleOperation tupleOperation) {
    EntityKey entityKey = tupleOperation.getEntityKey();
    Tuple tuple = tupleOperation.getTuple();
    MongoDBTupleSnapshot snapshot = (MongoDBTupleSnapshot) tupleOperation.getTuple().getSnapshot();
    WriteConcern writeConcern = getWriteConcern( tupleOperation.getTupleContext() );


    if ( INSERT == snapshot.getSnapshotType() ) {
      prepareForInsert( inserts, snapshot, entityKey, tuple, writeConcern );

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  private void addNavigationalInformationForInverseSide(int propertyIndex, AssociationKeyMetadata associationKeyMetadata, Object[] newColumnValue) {
    AssociationPersister associationPersister = createAssociationPersister( propertyIndex, associationKeyMetadata, newColumnValue );


    RowKey rowKey = getInverseRowKey( associationKeyMetadata, newColumnValue );


    Tuple associationRow = new Tuple();
    for ( String column : rowKey.getColumnNames() ) {
      associationRow.put( column, rowKey.getColumnValue( column ) );
    }
    associationPersister.getAssociation().put( rowKey, associationRow );


    associationPersister.flushToDatastore();
  }

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   * @param associationKeyMetadata meta-data for the inverse association of interest
   * @param associationColumnValues the column values identifying the entity on the inverse side of the association
   * @return the row key of the inverse association
   */
  private RowKey getInverseRowKey(AssociationKeyMetadata associationKeyMetadata, Object[] associationColumnValues) {
    Tuple rowKeyValues = new Tuple();


    // add the fk column
    for (int index = 0 ; index < associationKeyMetadata.getColumnNames().length ; index++) {
      rowKeyValues.put( associationKeyMetadata.getColumnNames()[index], associationColumnValues[index] );
    }


    // add the id column
    persister.getGridIdentifierType().nullSafeSet( rowKeyValues, id, persister.getIdentifierColumnNames(), session );

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  // At the moment we only support the case where one entity type is returned
  private List<Object> listOfEntities(SessionImplementor session, Type[] resultTypes, ClosableIterator<Tuple> tuples) {
    List<Object> results = new ArrayList<Object>();
    Class<?> returnedClass = resultTypes[0].getReturnedClass();
    while ( tuples.hasNext() ) {
      Tuple tuple = tuples.next();
      OgmLoader loader = createLoader( session, returnedClass );
      results.add( entity( session, tuple, loader ) );
    }
    return results;
  }

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  // At the moment we only support the case where one entity type is returned
  private List<Object> listOfEntities(SessionImplementor session, Type[] resultTypes, ClosableIterator<Tuple> tuples) {
    List<Object> results = new ArrayList<Object>();
    Class<?> returnedClass = resultTypes[0].getReturnedClass();
    while ( tuples.hasNext() ) {
      Tuple tuple = tuples.next();
      OgmLoader loader = createLoader( session, returnedClass );
      results.add( entity( session, tuple, loader ) );
    }
    return results;
  }

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  }


  private List<Object> listOfArrays(SessionImplementor session, Iterator<Tuple> tuples) {
    List<Object> results = new ArrayList<Object>();
    while ( tuples.hasNext() ) {
      Tuple tuple = tuples.next();
      Object[] entry = new Object[queryReturnTypes.length];


      int i = 0;
      for ( Type type : queryReturnTypes ) {
        GridType gridType = typeTranslator.getType( type );

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