Package it.unibz.inf.ontop.iq.optimizer.impl.lj

Class CardinalitySensitiveJoinTransferLJOptimizer.Transformer

java.lang.Object

it.unibz.inf.ontop.iq.transform.impl.DefaultNonRecursiveIQTreeTransformer

it.unibz.inf.ontop.iq.optimizer.impl.lj.AbstractJoinTransferLJTransformer

it.unibz.inf.ontop.iq.optimizer.impl.lj.CardinalitySensitiveJoinTransferLJOptimizer.Transformer

All Implemented Interfaces:

IQTreeTransformer, IQTreeVisitingTransformer

Enclosing class:

CardinalitySensitiveJoinTransferLJOptimizer

protected static class CardinalitySensitiveJoinTransferLJOptimizer.Transformer
extends AbstractJoinTransferLJTransformer

Nested Class Summary

Nested classes/interfaces inherited from class it.unibz.inf.ontop.iq.optimizer.impl.lj.AbstractJoinTransferLJTransformer

AbstractJoinTransferLJTransformer.DataNodeAndReplacement, AbstractJoinTransferLJTransformer.RenamingAndEqualities, AbstractJoinTransferLJTransformer.ReplaceNodeByTrueTransformer, AbstractJoinTransferLJTransformer.SelectedNode

Field Summary

Fields inherited from class it.unibz.inf.ontop.iq.optimizer.impl.lj.AbstractJoinTransferLJTransformer

optimizationSingletons, requiredDataNodeExtractor, rightProvenanceNormalizer, variableGenerator

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Transformer(Supplier<VariableNullability> variableNullabilitySupplier, VariableGenerator variableGenerator, RequiredExtensionalDataNodeExtractor requiredDataNodeExtractor, RightProvenanceNormalizer rightProvenanceNormalizer, OptimizationSingletons optimizationSingletons)

Method Summary

Modifier and Type	Method	Description
protected Optional<AbstractJoinTransferLJTransformer.SelectedNode>	selectForTransfer(ExtensionalDataNode rightDataNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableMultimap<RelationDefinition,ExtensionalDataNode> leftMultimap)
protected IQTree	transformBySearchingFromScratch(IQTree tree)

Methods inherited from class it.unibz.inf.ontop.iq.optimizer.impl.lj.AbstractJoinTransferLJTransformer

extractRightDataNodes, furtherTransformLeftJoin, getInheritedVariableNullability, matchForeignKey, matchFunctionalDependency, matchIndexes, matchUniqueConstraint, preTransformLJRightChild, selectRightDataNodesToTransfer, transformBinaryNonCommutativeNode, transformBinaryNonCommutativeNode, transformDistinct, transformFilter, transformInnerJoin, transformLeftJoin, transformNaryCommutativeNode, transformNaryCommutativeNode, transformOrderBy, transformSlice, transformUnaryNode, transformUnaryNode

Methods inherited from class it.unibz.inf.ontop.iq.transform.impl.DefaultNonRecursiveIQTreeTransformer

transformAggregation, transformConstruction, transformEmpty, transformExtensionalData, transformIntensionalData, transformLeaf, transformNonStandardBinaryNonCommutativeNode, transformNonStandardLeafNode, transformNonStandardNaryNode, transformNonStandardUnaryNode, transformTrue, transformUnion, transformValues

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface it.unibz.inf.ontop.iq.transform.IQTreeVisitingTransformer

transform

Constructor Detail

Transformer

protected Transformer(Supplier<VariableNullability> variableNullabilitySupplier,
                      VariableGenerator variableGenerator,
                      RequiredExtensionalDataNodeExtractor requiredDataNodeExtractor,
                      RightProvenanceNormalizer rightProvenanceNormalizer,
                      OptimizationSingletons optimizationSingletons)

Method Detail

selectForTransfer

protected Optional<AbstractJoinTransferLJTransformer.SelectedNode> selectForTransfer(ExtensionalDataNode rightDataNode,
                                                                                     it.unibz.inf.ontop.com.google.common.collect.ImmutableMultimap<RelationDefinition,ExtensionalDataNode> leftMultimap)

Specified by:

selectForTransfer in class AbstractJoinTransferLJTransformer

transformBySearchingFromScratch

protected IQTree transformBySearchingFromScratch(IQTree tree)

Specified by:

transformBySearchingFromScratch in class AbstractJoinTransferLJTransformer