it.unibz.inf.ontop.iq.visitor.impl

Class RequiredDataAtomExtractorImpl

java.lang.Object

it.unibz.inf.ontop.iq.visitor.impl.RequiredDataAtomExtractorImpl

All Implemented Interfaces:

IQVisitor<Stream<DataAtom<RelationPredicate>>>, RequiredDataAtomExtractor

@Singleton
public class RequiredDataAtomExtractorImpl
extends Object
implements RequiredDataAtomExtractor

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RequiredDataAtomExtractorImpl()

Method Summary

Modifier and Type	Method and Description
Stream<DataAtom<RelationPredicate>>	visitAggregation(AggregationNode aggregationNode, IQTree child) Blocks
Stream<DataAtom<RelationPredicate>>	visitConstruction(ConstructionNode rootNode, IQTree child)
Stream<DataAtom<RelationPredicate>>	visitDistinct(DistinctNode rootNode, IQTree child)
Stream<DataAtom<RelationPredicate>>	visitEmpty(EmptyNode node)
Stream<DataAtom<RelationPredicate>>	visitExtensionalData(ExtensionalDataNode dataNode)
Stream<DataAtom<RelationPredicate>>	visitFilter(FilterNode rootNode, IQTree child)
Stream<DataAtom<RelationPredicate>>	visitInnerJoin(InnerJoinNode rootNode, com.google.common.collect.ImmutableList<IQTree> children)
Stream<DataAtom<RelationPredicate>>	visitIntensionalData(IntensionalDataNode dataNode)
Stream<DataAtom<RelationPredicate>>	visitLeftJoin(LeftJoinNode rootNode, IQTree leftChild, IQTree rightChild) Only considers the left child
Stream<DataAtom<RelationPredicate>>	visitNative(NativeNode nativeNode)
Stream<DataAtom<RelationPredicate>>	visitNonStandardBinaryNonCommutativeNode(BinaryNonCommutativeOperatorNode rootNode, IQTree leftChild, IQTree rightChild) Blocks by default
Stream<DataAtom<RelationPredicate>>	visitNonStandardLeafNode(LeafIQTree leafNode)
Stream<DataAtom<RelationPredicate>>	visitNonStandardNaryNode(NaryOperatorNode rootNode, com.google.common.collect.ImmutableList<IQTree> children) Blocks by default
Stream<DataAtom<RelationPredicate>>	visitNonStandardUnaryNode(UnaryOperatorNode rootNode, IQTree child) Blocks by default
Stream<DataAtom<RelationPredicate>>	visitOrderBy(OrderByNode rootNode, IQTree child)
Stream<DataAtom<RelationPredicate>>	visitSlice(SliceNode sliceNode, IQTree child)
Stream<DataAtom<RelationPredicate>>	visitTrue(TrueNode node)
Stream<DataAtom<RelationPredicate>>	visitUnion(UnionNode rootNode, com.google.common.collect.ImmutableList<IQTree> children) TODO: try to extract some common data nodes

Methods inherited from class java.lang.Object

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

Constructor Detail

RequiredDataAtomExtractorImpl

@Inject
protected RequiredDataAtomExtractorImpl()

Method Detail

visitIntensionalData

public Stream<DataAtom<RelationPredicate>> visitIntensionalData(IntensionalDataNode dataNode)

Specified by:

visitIntensionalData in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitExtensionalData

public Stream<DataAtom<RelationPredicate>> visitExtensionalData(ExtensionalDataNode dataNode)

Specified by:

visitExtensionalData in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitEmpty

public Stream<DataAtom<RelationPredicate>> visitEmpty(EmptyNode node)

Specified by:

visitEmpty in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitTrue

public Stream<DataAtom<RelationPredicate>> visitTrue(TrueNode node)

Specified by:

visitTrue in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitNative

public Stream<DataAtom<RelationPredicate>> visitNative(NativeNode nativeNode)

Specified by:

visitNative in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitNonStandardLeafNode

public Stream<DataAtom<RelationPredicate>> visitNonStandardLeafNode(LeafIQTree leafNode)

Specified by:

visitNonStandardLeafNode in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitConstruction

public Stream<DataAtom<RelationPredicate>> visitConstruction(ConstructionNode rootNode,
                                                             IQTree child)

Specified by:

visitConstruction in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitAggregation

public Stream<DataAtom<RelationPredicate>> visitAggregation(AggregationNode aggregationNode,
                                                            IQTree child)

Blocks

Specified by:

visitAggregation in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitFilter

public Stream<DataAtom<RelationPredicate>> visitFilter(FilterNode rootNode,
                                                       IQTree child)

Specified by:

visitFilter in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitDistinct

public Stream<DataAtom<RelationPredicate>> visitDistinct(DistinctNode rootNode,
                                                         IQTree child)

Specified by:

visitDistinct in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitSlice

public Stream<DataAtom<RelationPredicate>> visitSlice(SliceNode sliceNode,
                                                      IQTree child)

Specified by:

visitSlice in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitOrderBy

public Stream<DataAtom<RelationPredicate>> visitOrderBy(OrderByNode rootNode,
                                                        IQTree child)

Specified by:

visitOrderBy in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitNonStandardUnaryNode

public Stream<DataAtom<RelationPredicate>> visitNonStandardUnaryNode(UnaryOperatorNode rootNode,
                                                                     IQTree child)

Blocks by default

Specified by:

visitNonStandardUnaryNode in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitLeftJoin

public Stream<DataAtom<RelationPredicate>> visitLeftJoin(LeftJoinNode rootNode,
                                                         IQTree leftChild,
                                                         IQTree rightChild)

Only considers the left child

Specified by:

visitLeftJoin in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitNonStandardBinaryNonCommutativeNode

public Stream<DataAtom<RelationPredicate>> visitNonStandardBinaryNonCommutativeNode(BinaryNonCommutativeOperatorNode rootNode,
                                                                                    IQTree leftChild,
                                                                                    IQTree rightChild)

Blocks by default

Specified by:

visitNonStandardBinaryNonCommutativeNode in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitInnerJoin

public Stream<DataAtom<RelationPredicate>> visitInnerJoin(InnerJoinNode rootNode,
                                                          com.google.common.collect.ImmutableList<IQTree> children)

Specified by:

visitInnerJoin in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitUnion

public Stream<DataAtom<RelationPredicate>> visitUnion(UnionNode rootNode,
                                                      com.google.common.collect.ImmutableList<IQTree> children)

TODO: try to extract some common data nodes

Specified by:

visitUnion in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>

visitNonStandardNaryNode

public Stream<DataAtom<RelationPredicate>> visitNonStandardNaryNode(NaryOperatorNode rootNode,
                                                                    com.google.common.collect.ImmutableList<IQTree> children)

Blocks by default

Specified by:

visitNonStandardNaryNode in interface IQVisitor<Stream<DataAtom<RelationPredicate>>>