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

Class DefaultTermTypeTermVisitingTreeTransformer

java.lang.Object

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

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

All Implemented Interfaces:

IQTreeTransformer, IQTreeVisitingTransformer, TermTypeTermLiftTransformer

public class DefaultTermTypeTermVisitingTreeTransformer
extends DefaultRecursiveIQTreeVisitingTransformer
implements TermTypeTermLiftTransformer

Lifts meta term type definitions are blocked by unions. Also makes sure that type terms are lifted above AggregationNode-s and DistinctNode-s.

Field Summary

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

iqFactory

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DefaultTermTypeTermVisitingTreeTransformer(VariableGenerator variableGenerator, TermFactory termFactory, IntermediateQueryFactory iqFactory, TypeConstantDictionary typeConstantDictionary, SubstitutionFactory substitutionFactory, FunctionSymbolFactory functionSymbolFactory)

Method Summary

Modifier and Type	Method	Description
IQTree	transform(IQTree tree)
IQTree	transformAggregation(IQTree tree, AggregationNode rootNode, IQTree child)
protected IQTree	transformBinaryNonCommutativeNode(IQTree tree, BinaryNonCommutativeOperatorNode rootNode, IQTree leftChild, IQTree rightChild)
IQTree	transformDistinct(IQTree tree, DistinctNode rootNode, IQTree child)
protected IQTree	transformLeaf(LeafIQTree leaf)
protected IQTree	transformNaryCommutativeNode(IQTree tree, NaryOperatorNode rootNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<IQTree> children)
protected IQTree	transformUnaryNode(IQTree tree, UnaryOperatorNode rootNode, IQTree child)
IQTree	transformUnion(IQTree tree, UnionNode rootNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<IQTree> children)
IQTree	transformValues(ValuesNode valuesNode)	Used to change out any RDFTermTypeConstants appearing in ValuesNodes to DBConstants.

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

transformConstruction, transformEmpty, transformExtensionalData, transformFilter, transformInnerJoin, transformIntensionalData, transformLeftJoin, transformNonStandardBinaryNonCommutativeNode, transformNonStandardLeafNode, transformNonStandardNaryNode, transformNonStandardUnaryNode, transformOrderBy, transformSlice, transformTrue

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultTermTypeTermVisitingTreeTransformer

@Inject
protected DefaultTermTypeTermVisitingTreeTransformer(VariableGenerator variableGenerator,
                                                     TermFactory termFactory,
                                                     IntermediateQueryFactory iqFactory,
                                                     TypeConstantDictionary typeConstantDictionary,
                                                     SubstitutionFactory substitutionFactory,
                                                     FunctionSymbolFactory functionSymbolFactory)

Method Detail

transform

public IQTree transform(IQTree tree)

Specified by:

transform in interface IQTreeTransformer

Specified by:

transform 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

Overrides:

transformUnion in class DefaultRecursiveIQTreeVisitingTransformer

transformValues

public IQTree transformValues(ValuesNode valuesNode)

Used to change out any RDFTermTypeConstants appearing in ValuesNodes to DBConstants.

Specified by:

transformValues in interface IQTreeVisitingTransformer

Overrides:

transformValues in class DefaultRecursiveIQTreeVisitingTransformer

transformDistinct

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

Specified by:

transformDistinct in interface IQTreeVisitingTransformer

Overrides:

transformDistinct in class DefaultRecursiveIQTreeVisitingTransformer

transformAggregation

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

Specified by:

transformAggregation in interface IQTreeVisitingTransformer

Overrides:

transformAggregation in class DefaultRecursiveIQTreeVisitingTransformer

transformLeaf

protected IQTree transformLeaf(LeafIQTree leaf)

Overrides:

transformLeaf in class DefaultRecursiveIQTreeVisitingTransformer

transformUnaryNode

protected IQTree transformUnaryNode(IQTree tree,
                                    UnaryOperatorNode rootNode,
                                    IQTree child)

Overrides:

transformUnaryNode in class DefaultRecursiveIQTreeVisitingTransformer

transformNaryCommutativeNode

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

Overrides:

transformNaryCommutativeNode in class DefaultRecursiveIQTreeVisitingTransformer

transformBinaryNonCommutativeNode

protected IQTree transformBinaryNonCommutativeNode(IQTree tree,
                                                   BinaryNonCommutativeOperatorNode rootNode,
                                                   IQTree leftChild,
                                                   IQTree rightChild)

Overrides:

transformBinaryNonCommutativeNode in class DefaultRecursiveIQTreeVisitingTransformer