it.unibz.inf.ontop.iq.transformer.impl

Class BooleanExpressionPushDownTransformerImpl

java.lang.Object

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

it.unibz.inf.ontop.iq.transformer.impl.BooleanExpressionPushDownTransformerImpl

All Implemented Interfaces:

IQTreeTransformer, IQTreeVisitingTransformer, BooleanExpressionPushDownTransformer

public class BooleanExpressionPushDownTransformerImpl
extends DefaultRecursiveIQTreeVisitingTransformer
implements BooleanExpressionPushDownTransformer

Field Summary

Fields inherited from class it.unibz.inf.ontop.iq.transform.impl.DefaultRecursiveIQTreeVisitingTransformer

iqFactory

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BooleanExpressionPushDownTransformerImpl(CoreSingletons coreSingletons)

Method Summary

Modifier and Type	Method and Description
IQTree	transformFilter(IQTree tree, FilterNode rootNode, IQTree child)
IQTree	transformInnerJoin(IQTree tree, InnerJoinNode rootNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<IQTree> children)
IQTree	transformLeftJoin(IQTree tree, LeftJoinNode rootNode, IQTree leftChild, IQTree rightChild) Tries to push the left join condition on the right

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

transformAggregation, transformBinaryNonCommutativeNode, transformConstruction, transformDistinct, transformEmpty, transformExtensionalData, transformIntensionalData, transformLeaf, transformNaryCommutativeNode, transformNonStandardBinaryNonCommutativeNode, transformNonStandardLeafNode, transformNonStandardNaryNode, transformNonStandardUnaryNode, transformOrderBy, transformSlice, transformTrue, transformUnaryNode, transformUnion

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.IQTreeTransformer

transform

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

transform

Constructor Detail

BooleanExpressionPushDownTransformerImpl

@Inject
protected BooleanExpressionPushDownTransformerImpl(CoreSingletons coreSingletons)

Method Detail

transformFilter

public IQTree transformFilter(IQTree tree,
                              FilterNode rootNode,
                              IQTree child)

Specified by:

transformFilter in interface IQTreeVisitingTransformer

Overrides:

transformFilter in class DefaultRecursiveIQTreeVisitingTransformer

transformLeftJoin

public IQTree transformLeftJoin(IQTree tree,
                                LeftJoinNode rootNode,
                                IQTree leftChild,
                                IQTree rightChild)

Tries to push the left join condition on the right

Specified by:

transformLeftJoin in interface IQTreeVisitingTransformer

Overrides:

transformLeftJoin in class DefaultRecursiveIQTreeVisitingTransformer

transformInnerJoin

public IQTree transformInnerJoin(IQTree tree,
                                 InnerJoinNode rootNode,
                                 it.unibz.inf.ontop.com.google.common.collect.ImmutableList<IQTree> children)

Specified by:

transformInnerJoin in interface IQTreeVisitingTransformer

Overrides:

transformInnerJoin in class DefaultRecursiveIQTreeVisitingTransformer