Package org.hibernate.engine

Examples of org.hibernate.engine.FetchStrategy

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    );
    if ( style == null ) {
      style = determineFetchStyleByMetadata( getFetchMode(), getType() );
    }

    return new FetchStrategy( determineFetchTiming( style ), style );
  }
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    }
  }

  @Override
  protected FetchStrategy determineFetchStrategy(AssociationAttributeDefinition attributeDefinition) {
    FetchStrategy fetchStrategy = attributeDefinition.determineFetchPlan( loadQueryInfluencers, currentPropertyPath );
    if ( fetchStrategy.getTiming() == FetchTiming.IMMEDIATE && fetchStrategy.getStyle() == FetchStyle.JOIN ) {
      // see if we need to alter the join fetch to another form for any reason
      fetchStrategy = adjustJoinFetchIfNeeded( attributeDefinition, fetchStrategy );
    }
    return fetchStrategy;
  }
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  protected FetchStrategy adjustJoinFetchIfNeeded(
      AssociationAttributeDefinition attributeDefinition,
      FetchStrategy fetchStrategy) {
    final Integer maxFetchDepth = sessionFactory().getSettings().getMaximumFetchDepth();
    if ( maxFetchDepth != null && currentDepth() > maxFetchDepth ) {
      return new FetchStrategy( fetchStrategy.getTiming(), FetchStyle.SELECT );
    }

    if ( attributeDefinition.getType().isCollectionType() && isTooManyCollections() ) {
      // todo : have this revert to batch or subselect fetching once "sql gen redesign" is in place
      return new FetchStrategy( fetchStrategy.getTiming(), FetchStyle.SELECT );
    }

    return fetchStrategy;
  }
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    }
  }

  @Override
  protected FetchStrategy determineFetchPlan(AssociationAttributeDefinition attributeDefinition) {
    FetchStrategy fetchStrategy = attributeDefinition.determineFetchPlan( loadQueryInfluencers, propertyPath );
    if ( fetchStrategy.getTiming() == FetchTiming.IMMEDIATE && fetchStrategy.getStyle() == FetchStyle.JOIN ) {
      // see if we need to alter the join fetch to another form for any reason
      fetchStrategy = adjustJoinFetchIfNeeded( attributeDefinition, fetchStrategy );
    }
    return fetchStrategy;
  }
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  protected FetchStrategy adjustJoinFetchIfNeeded(
      AssociationAttributeDefinition attributeDefinition,
      FetchStrategy fetchStrategy) {
    if ( currentDepth() > sessionFactory().getSettings().getMaximumFetchDepth() ) {
      return new FetchStrategy( fetchStrategy.getTiming(), FetchStyle.SELECT );
    }

    if ( attributeDefinition.getType().isCollectionType() && isTooManyCollections() ) {
      // todo : have this revert to batch or subselect fetching once "sql gen redesign" is in place
      return new FetchStrategy( fetchStrategy.getTiming(), FetchStyle.SELECT );
    }

    return fetchStrategy;
  }
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    return fetchedAssociationKeySourceMap.get( associationKey );
  }

  @Override
  public void foundCircularAssociation(AssociationAttributeDefinition attributeDefinition) {
    final FetchStrategy fetchStrategy = determineFetchStrategy( attributeDefinition );
    if ( fetchStrategy.getStyle() != FetchStyle.JOIN ) {
      return; // nothing to do
    }

    final AssociationKey associationKey = attributeDefinition.getAssociationKey();
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  @Override
  public void foundAny(AssociationAttributeDefinition attributeDefinition, AnyMappingDefinition anyDefinition) {
    // for ANY mappings we need to build a Fetch:
    //    1) fetch type is SELECT, timing might be IMMEDIATE or DELAYED depending on whether it was defined as lazy
    //    2) (because the fetch cannot be a JOIN...) do not push it to the stack
    final FetchStrategy fetchStrategy = determineFetchStrategy( attributeDefinition );

//    final FetchOwner fetchSource = currentFetchOwner();
//    fetchOwner.validateFetchPlan( fetchStrategy, attributeDefinition );
//
//    fetchOwner.buildAnyFetch(
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    return true;
  }

  protected boolean handleAssociationAttribute(AssociationAttributeDefinition attributeDefinition) {
    // todo : this seems to not be correct for one-to-one
    final FetchStrategy fetchStrategy = determineFetchStrategy( attributeDefinition );
    if ( fetchStrategy.getStyle() != FetchStyle.JOIN ) {
      return false;
    }
//    if ( fetchStrategy.getTiming() != FetchTiming.IMMEDIATE ) {
//      return false;
//    }
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          getSource().getType().getFetchMode( attributeNumber() ),
          getType()
      );
    }

    return new FetchStrategy( determineFetchTiming( style ), style );
  }
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    return new LoadPlanImpl( false, rootReturn );
  }

  @Override
  protected FetchStrategy determineFetchPlan(AssociationAttributeDefinition attributeDefinition) {
    FetchStrategy fetchStrategy = attributeDefinition.determineFetchPlan( loadQueryInfluencers, propertyPath );
    if ( fetchStrategy.getTiming() == FetchTiming.IMMEDIATE && fetchStrategy.getStyle() == FetchStyle.JOIN ) {
      // see if we need to alter the join fetch to another form for any reason
      fetchStrategy = adjustJoinFetchIfNeeded( attributeDefinition, fetchStrategy );
    }
    return fetchStrategy;
  }
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Related Classes of org.hibernate.engine.FetchStrategy

  • org.hibernate.jpa.graph.internal.advisor.AdviceHelper
  • org.hibernate.loader.plan.build.internal.AbstractEntityGraphVisitationStrategy
  • org.hibernate.loader.plan.build.internal.AbstractLoadPlanBuildingAssociationVisitationStrategy
  • org.hibernate.loader.plan.build.internal.FetchStyleLoadPlanBuildingAssociationVisitationStrategy
  • org.hibernate.loader.plan.build.internal.LoadGraphLoadPlanBuildingStrategy
  • org.hibernate.loader.plan.build.spi.AbstractLoadPlanBuildingAssociationVisitationStrategy
  • org.hibernate.loader.plan.internal.SingleRootReturnLoadPlanBuilderStrategy
  • org.hibernate.loader.plan.spi.build.AbstractLoadPlanBuilderStrategy
  • org.hibernate.loader.plan2.build.internal.FetchStyleLoadPlanBuildingAssociationVisitationStrategy
  • org.hibernate.loader.plan2.build.spi.AbstractLoadPlanBuildingAssociationVisitationStrategy
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