it.unibz.inf.ontop.iq.node.normalization.impl

Class NotRequiredVariableRemoverImpl.VariableRemoverTransformer

java.lang.Object

it.unibz.inf.ontop.iq.node.normalization.impl.NotRequiredVariableRemoverImpl.VariableRemoverTransformer

All Implemented Interfaces:

IQTreeTransformer, IQTreeVisitingTransformer

Enclosing class:

NotRequiredVariableRemoverImpl

protected static class NotRequiredVariableRemoverImpl.VariableRemoverTransformer
extends Object
implements IQTreeVisitingTransformer

Is expected to always have an effect on the tree it receives as argument. ---> Not called for trees not having any variable to remove.

Field Summary

Fields

Modifier and Type	Field and Description
protected CoreSingletons	coreSingletons
protected IntermediateQueryFactory	iqFactory
protected SubstitutionFactory	substitutionFactory
protected ConstructionSubstitutionNormalizer	substitutionNormalizer
protected VariableGenerator	variableGenerator
protected it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable>	variablesToRemove

Constructor Summary

Constructors

Constructor and Description
VariableRemoverTransformer(it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable> variablesToRemove, VariableGenerator variableGenerator, CoreSingletons coreSingletons)

Method Summary

Modifier and Type	Method and Description
protected IQTreeTransformer	createNewTransformer(it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable> variablesToRemove) To be overridden by sub-classes
IQTree	transformAggregation(IQTree tree, AggregationNode aggregationNode, IQTree child)
IQTree	transformConstruction(IQTree tree, ConstructionNode rootNode, IQTree child)
IQTree	transformDistinct(IQTree tree, DistinctNode rootNode, IQTree child)
IQTree	transformEmpty(EmptyNode rootNode)
IQTree	transformExtensionalData(ExtensionalDataNode rootNode)
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	transformIntensionalData(IntensionalDataNode rootNode)
IQTree	transformLeftJoin(IQTree tree, LeftJoinNode rootNode, IQTree leftChild, IQTree rightChild)
IQTree	transformNonStandardBinaryNonCommutativeNode(IQTree tree, BinaryNonCommutativeOperatorNode rootNode, IQTree leftChild, IQTree rightChild)
IQTree	transformNonStandardLeafNode(LeafIQTree rootNode)
IQTree	transformNonStandardNaryNode(IQTree tree, NaryOperatorNode rootNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<IQTree> children)
IQTree	transformNonStandardUnaryNode(IQTree tree, UnaryOperatorNode rootNode, IQTree child)
IQTree	transformOrderBy(IQTree tree, OrderByNode rootNode, IQTree child)
IQTree	transformSlice(IQTree tree, SliceNode rootNode, IQTree child)
IQTree	transformTrue(TrueNode rootNode)
IQTree	transformUnion(IQTree tree, UnionNode rootNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<IQTree> children)

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

Field Detail

variablesToRemove

protected final it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable> variablesToRemove

iqFactory

protected final IntermediateQueryFactory iqFactory

substitutionFactory

protected final SubstitutionFactory substitutionFactory

coreSingletons

protected final CoreSingletons coreSingletons

variableGenerator

protected final VariableGenerator variableGenerator

substitutionNormalizer

protected final ConstructionSubstitutionNormalizer substitutionNormalizer

Constructor Detail

VariableRemoverTransformer

public VariableRemoverTransformer(it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable> variablesToRemove,
                                  VariableGenerator variableGenerator,
                                  CoreSingletons coreSingletons)

Method Detail

createNewTransformer

protected IQTreeTransformer createNewTransformer(it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable> variablesToRemove)

To be overridden by sub-classes

transformIntensionalData

public IQTree transformIntensionalData(IntensionalDataNode rootNode)

Specified by:

transformIntensionalData in interface IQTreeVisitingTransformer

transformExtensionalData

public IQTree transformExtensionalData(ExtensionalDataNode rootNode)

Specified by:

transformExtensionalData in interface IQTreeVisitingTransformer

transformEmpty

public IQTree transformEmpty(EmptyNode rootNode)

Specified by:

transformEmpty in interface IQTreeVisitingTransformer

transformTrue

public IQTree transformTrue(TrueNode rootNode)

Specified by:

transformTrue in interface IQTreeVisitingTransformer

transformNonStandardLeafNode

public IQTree transformNonStandardLeafNode(LeafIQTree rootNode)

Specified by:

transformNonStandardLeafNode in interface IQTreeVisitingTransformer

transformConstruction

public IQTree transformConstruction(IQTree tree,
                                    ConstructionNode rootNode,
                                    IQTree child)

Specified by:

transformConstruction in interface IQTreeVisitingTransformer

transformAggregation

public IQTree transformAggregation(IQTree tree,
                                   AggregationNode aggregationNode,
                                   IQTree child)

Specified by:

transformAggregation in interface IQTreeVisitingTransformer

transformFilter

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

Specified by:

transformFilter in interface IQTreeVisitingTransformer

transformDistinct

public IQTree transformDistinct(IQTree tree,
                                DistinctNode rootNode,
                                IQTree child)

Specified by:

transformDistinct in interface IQTreeVisitingTransformer

transformSlice

public IQTree transformSlice(IQTree tree,
                             SliceNode rootNode,
                             IQTree child)

Specified by:

transformSlice in interface IQTreeVisitingTransformer

transformOrderBy

public IQTree transformOrderBy(IQTree tree,
                               OrderByNode rootNode,
                               IQTree child)

Specified by:

transformOrderBy in interface IQTreeVisitingTransformer

transformNonStandardUnaryNode

public IQTree transformNonStandardUnaryNode(IQTree tree,
                                            UnaryOperatorNode rootNode,
                                            IQTree child)

Specified by:

transformNonStandardUnaryNode in interface IQTreeVisitingTransformer

transformLeftJoin

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

Specified by:

transformLeftJoin in interface IQTreeVisitingTransformer

transformNonStandardBinaryNonCommutativeNode

public IQTree transformNonStandardBinaryNonCommutativeNode(IQTree tree,
                                                           BinaryNonCommutativeOperatorNode rootNode,
                                                           IQTree leftChild,
                                                           IQTree rightChild)

Specified by:

transformNonStandardBinaryNonCommutativeNode in interface IQTreeVisitingTransformer

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

transformUnion

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

Specified by:

transformUnion in interface IQTreeVisitingTransformer

transformNonStandardNaryNode

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

Specified by:

transformNonStandardNaryNode in interface IQTreeVisitingTransformer