Examples of org.hibernate.ogm.dialect.spi.GridDialect

org.hibernate.ogm.dialect.spi.GridDialect
Dialect abstracting Hibernate OGM from the grid implementation.
Specific grid dialects may implement one or more facet interfaces, in order to provide additional functionality such as querying or batching support. Rather than implementing this interface directly, it is recommend to extend {@link BaseGridDialect}. @author Emmanuel Bernard @author Gunnar Morling


  /**
   * If the current dialect supports batching, register the required event listeners.
   */
  private void attachBatchListenersIfRequired(SessionFactoryServiceRegistry serviceRegistry) {
    GridDialect gridDialect = serviceRegistry.getService( GridDialect.class );
    BatchOperationsDelegator batchDelegator = asBatchDelegatorOrNull( gridDialect );


    if ( batchDelegator != null ) {
      EventListenerRegistry eventListenerRegistry = serviceRegistry.getService( EventListenerRegistry.class );
      addListeners( eventListenerRegistry, batchDelegator );

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  protected void configure(Configuration cfg) {
    cfg.getProperties().put( OgmProperties.GRID_DIALECT, InvokedOperationsLoggingDialect.class );
  }


  private InvokedOperationsLoggingDialect getOperationsLogger() {
    GridDialect gridDialect = sfi().getServiceRegistry().getService( GridDialect.class );


    if ( gridDialect instanceof ForwardingGridDialect ) {
      while ( gridDialect instanceof ForwardingGridDialect ) {
        gridDialect = ( (ForwardingGridDialect<?>) gridDialect ).getGridDialect();
        if ( gridDialect instanceof InvokedOperationsLoggingDialect ) {
          return (InvokedOperationsLoggingDialect) gridDialect;
        }
      }
    }
    else if ( gridDialect instanceof InvokedOperationsLoggingDialect ) {
      return (InvokedOperationsLoggingDialect) gridDialect;
    }


    throw new IllegalStateException( "Unexpected dialect type: " + gridDialect.getClass() );
  }

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    return TypeTranslator.class;
  }


  @Override
  public TypeTranslator initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
    GridDialect dialect = registry.getService( GridDialect.class );
    return new TypeTranslatorImpl( dialect );
  }

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public class SessionFactoryLifecycleAwareDialectInitializer implements SessionFactoryObserver {


  @Override
  public void sessionFactoryCreated(SessionFactory factory) {
    SessionFactoryImplementor factoryImplementor = (SessionFactoryImplementor) factory;
    GridDialect gridDialect = factoryImplementor.getServiceRegistry().getService( GridDialect.class );
    SessionFactoryLifecycleAwareDialect sessionFactoryAwareDialect = GridDialects.getDialectFacetOrNull( gridDialect, SessionFactoryLifecycleAwareDialect.class );
    if ( sessionFactoryAwareDialect != null ) {
      sessionFactoryAwareDialect.sessionFactoryCreated( factoryImplementor );
    }
  }

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    return sequenceName;
  }


  private IdSourceKeyAndKeyMetadataProvider getDelegate(Dialect dialect) {
    GridDialect gridDialect = super.getGridDialect();


    if ( gridDialect.supportsSequences() ) {
      return new SequenceKeyAndMetadataProvider( generatorKeyMetadata );
    }
    else {
      log.dialectDoesNotSupportSequences( gridDialect.getClass().getName() );


      OgmTableGenerator tableGenerator = new OgmTableGenerator();
      Properties newParams = new Properties();
      newParams.putAll( params );
      newParams.put( OgmTableGenerator.SEGMENT_VALUE_PARAM, sequenceName );

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  }


  @Override
  public Map<String, Object> extractEntityTuple(SessionFactory sessionFactory, EntityKey key) {
    Map<String, Object> tuple = new HashMap<String, Object>();
    GridDialect dialect = getDialect( sessionFactory );
    TupleSnapshot snapshot = dialect.getTuple( key, GridDialectOperationContexts.emptyTupleContext() ).getSnapshot();
    for ( String column : snapshot.getColumnNames() ) {
      tuple.put( column, snapshot.get( column ) );
    }
    return tuple;
  }

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    }
    return Neo4jDatastoreProvider.class.cast( provider );
  }


  private static GridDialect getDialect(SessionFactory sessionFactory) {
    GridDialect dialect = ( (SessionFactoryImplementor) sessionFactory ).getServiceRegistry().getService( GridDialect.class );
    return dialect;
  }

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          }
        }
        if ( injector == null ) {
          log.gridDialectHasNoProperConstructor( clazz );
        }
        GridDialect gridDialect = (GridDialect) injector.newInstance( datastore );


        if ( GridDialects.hasFacet( gridDialect, BatchableGridDialect.class ) ) {
          BatchableGridDialect batchable = (BatchableGridDialect) gridDialect;
          gridDialect = new BatchOperationsDelegator( batchable );
        }


        log.useGridDialect( gridDialect.getClass().getName() );
        if ( GridDialectLogger.activationNeeded() ) {
          gridDialect = new GridDialectLogger( gridDialect );
          log.info( "Grid dialect logs are active" );
        }
        else {

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  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder( getClass().getSimpleName() );
    sb.append( " -> " );


    GridDialect delegate = gridDialect;
    while ( delegate instanceof ForwardingGridDialect ) {
      sb.append( delegate.getClass().getSimpleName() );
      sb.append( " -> " );
      delegate = ( (ForwardingGridDialect<?>) delegate ).getGridDialect();
    }


    sb.append( delegate.getClass().getSimpleName() );
    sb.append( "]" );


    return sb.toString();
  }

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  protected void configure(Configuration cfg) {
    cfg.getProperties().put( OgmProperties.GRID_DIALECT, InvokedOperationsLoggingDialect.class );
  }


  private InvokedOperationsLoggingDialect getOperationsLogger() {
    GridDialect gridDialect = sfi().getServiceRegistry().getService( GridDialect.class );


    if ( gridDialect instanceof ForwardingGridDialect ) {
      while ( gridDialect instanceof ForwardingGridDialect ) {
        gridDialect = ( (ForwardingGridDialect<?>) gridDialect ).getGridDialect();
        if ( gridDialect instanceof InvokedOperationsLoggingDialect ) {
          return (InvokedOperationsLoggingDialect) gridDialect;
        }
      }
    }
    else if ( gridDialect instanceof InvokedOperationsLoggingDialect ) {
      return (InvokedOperationsLoggingDialect) gridDialect;
    }


    throw new IllegalStateException( "Unexpected dialect type: " + gridDialect.getClass() );
  }

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org.hibernate.ogm.dialect.impl.ForwardingGridDialect

org.hibernate.ogm.dialect.impl.GridDialectInitiator$GridDialectInstantiator

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