Examples of org.hibernate.ogm.type.spi.GridType

org.hibernate.ogm.type.spi.GridType
Defines a mapping between a Java type and one grid type, as well as describing the in-memory semantics of the given java type (how do we check it for 'dirtiness', how do we copy values, etc).
Application developers needing custom types can implement this interface (either directly or via subclassing an existing impl) or by the (slightly more stable, though more limited) {@link org.hibernate.usertype.UserType}interface.
Implementations of this interface must certainly be thread-safe. It is recommended that they be immutable as well, though that is difficult to achieve completely given the no-arg constructor requirement for custom types. @author Gavin King @author Steve Ebersole @author Emmanuel Bernard

    return gridValue;
  }


  private Object convertToGridType(Object value, Type propertyType) {
    Tuple dummy = new Tuple();
    GridType gridType = typeTranslator().getType( propertyType );
    gridType.nullSafeSet( dummy, value, new String[] { "key" }, null );
    return dummy.get( "key" );
  }

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    Map<String, Object> parameterValues = new HashMap<String, Object>( queryParameters.getNamedParameters().size() );
    Tuple dummy = new Tuple();
    TypeTranslator typeTranslator = serviceRegistry.getService( TypeTranslator.class );


    for ( Entry<String, TypedValue> parameter : queryParameters.getNamedParameters().entrySet() ) {
      GridType gridType = typeTranslator.getType( parameter.getValue().getType() );
      gridType.nullSafeSet( dummy, parameter.getValue().getValue(), new String[]{ parameter.getKey() }, null );
      parameterValues.put( parameter.getKey(), dummy.get( parameter.getKey() ) );
    }


    return parameterValues;
  }

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    }
    else {
      if (optionalId == null) {
        final OgmEntityPersister currentPersister = entityPersisters[0];
        Tuple tuple =  ogmLoadingContext.getResultSet().getTuple();
        GridType gridIdentifierType = currentPersister.getGridIdentifierType();
        optionalId = (Serializable) gridIdentifierType.nullSafeGet( tuple, currentPersister.getIdentifierColumnNames(), session, null );
      }
      final org.hibernate.engine.spi.EntityKey key = session.generateEntityKey( optionalId,  entityPersisters[0] );
      keys[0] = key;
    }
  }

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      return null;
    }


    //TODO should we cache results? It seems an actual HashMap might be slower but it makes it more robust
    //     against badly written dialects
    GridType dialectType = dialect.overrideType( type );
    if ( dialectType != null ) {
      return dialectType;
    }
    else if ( type instanceof AbstractStandardBasicType ) {
      AbstractStandardBasicType<?> exposedType = (AbstractStandardBasicType<?>) type;
      final GridType gridType = typeConverter.get( exposedType.getJavaTypeDescriptor() );
      if (gridType == null) {
        throw log.unableToFindGridType( exposedType.getJavaTypeDescriptor().getJavaTypeClass().getName() );
      }
      return gridType;
    }

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  /**
   * Returns the object referenced by the specified property (which represents an association).
   */
  private Object getReferencedEntity(int propertyIndex) {
    GridType propertyType = persister.getGridPropertyTypes()[propertyIndex];


    Serializable id = (Serializable) propertyType.hydrate(
        resultset, persister.getPropertyColumnNames( propertyIndex ), session, null
    );


    if ( id != null ) {
      EntityPersister hostingEntityPersister = session.getFactory().getEntityPersister(
          propertyType.getReturnedClass().getName()
      );


      return session.getPersistenceContext().getEntity(
          session.generateEntityKey( id, hostingEntityPersister )
      );

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      Tuple tuple = tuples.next();
      Object[] entry = new Object[queryReturnTypes.length];


      int i = 0;
      for ( Type type : queryReturnTypes ) {
        GridType gridType = typeTranslator.getType( type );
        entry[i] = gridType.nullSafeGet( tuple, scalarColumns.get( i ), session, null );
        i++;
      }


      if ( entry.length == 1 ) {
        results.add( entry[0] );

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        for ( Return queryReturn : customQuery.getCustomQueryReturns() ) {
          ScalarReturn scalarReturn = (ScalarReturn) queryReturn;
          Type type = scalarReturn.getType();


          if ( type != null ) {
            GridType gridType = typeTranslator.getType( type );
            entry[i++] = gridType.nullSafeGet( tuple, scalarReturn.getColumnAlias(), session, null );
          }
          else {
            entry[i++] = tuple.get( scalarReturn.getColumnAlias() );
          }
        }

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  }


  @Override
  public void nullSafeSet(Tuple resultset, Object value, String[] names, boolean[] settable, SessionImplementor session)
      throws HibernateException {
    GridType idGridType = getIdGridType( session );
    idGridType.nullSafeSet( resultset, getIdentifier( value, session ), names, settable, session );
  }

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    idGridType.nullSafeSet( resultset, getIdentifier( value, session ), names, settable, session );
  }


  private GridType getIdGridType(SessionImplementor session) {
    final Type idType = delegate.getIdentifierOrUniqueKeyType( session.getFactory() );
    GridType idGridType = typeTranslator.getType( idType );
    return idGridType;
  }

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  }


  @Override
  public void nullSafeSet(Tuple resultset, Object value, String[] names, SessionImplementor session)
      throws HibernateException {
    GridType idGridType = getIdGridType( session );
    idGridType.nullSafeSet( resultset, getIdentifier( value, session ), names, session );
  }

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