it.unibz.inf.ontop.iq.node

Interface IntensionalDataNode

All Superinterfaces:

Cloneable, ExplicitVariableProjectionNode, IQTree, LeafIQTree, QueryNode

All Known Implementing Classes:

IntensionalDataNodeImpl

public interface IntensionalDataNode
extends LeafIQTree

TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.

Method Summary

Modifier and Type	Method and Description
IntensionalDataNode	acceptNodeTransformer(HomogeneousQueryNodeTransformer transformer) "Accept" method for the "Visitor" pattern.
IntensionalDataNode	clone() Cloning is needed for having multiple copies in the same intermediate query tree.
DataAtom<AtomPredicate>	getProjectionAtom()
IntensionalDataNode	newAtom(DataAtom<AtomPredicate> newAtom)

Methods inherited from interface it.unibz.inf.ontop.iq.LeafIQTree

getRootNode

Methods inherited from interface it.unibz.inf.ontop.iq.IQTree

acceptTransformer, acceptVisitor, applyDescendingSubstitution, applyDescendingSubstitutionWithoutOptimizing, applyFreshRenaming, applyFreshRenamingToAllVariables, getChildren, getKnownVariables, getNotInternallyRequiredVariables, getPossibleVariableDefinitions, getVariableNullability, getVariables, inferUniqueConstraints, isConstructed, isDeclaredAsEmpty, isDistinct, isEquivalentTo, isLeaf, liftIncompatibleDefinitions, normalizeForOptimization, propagateDownConstraint, removeDistincts, replaceSubTree, validate

Methods inherited from interface it.unibz.inf.ontop.iq.node.ExplicitVariableProjectionNode

getVariables

Methods inherited from interface it.unibz.inf.ontop.iq.node.QueryNode

acceptVisitor, getLocallyDefinedVariables, getLocallyRequiredVariables, getLocalVariables, getRequiredVariables, isEquivalentTo, isSyntacticallyEquivalentTo, isVariableNullable

Method Detail

getProjectionAtom

DataAtom<AtomPredicate> getProjectionAtom()

clone

IntensionalDataNode clone()

Description copied from interface: QueryNode

Cloning is needed for having multiple copies in the same intermediate query tree.

Specified by:

clone in interface QueryNode

acceptNodeTransformer

IntensionalDataNode acceptNodeTransformer(HomogeneousQueryNodeTransformer transformer)
                                   throws QueryNodeTransformationException

Description copied from interface: QueryNode

"Accept" method for the "Visitor" pattern. To be implemented by leaf classes. If the transformation cannot be done, throw a QueryNodeTransformationException

Specified by:

acceptNodeTransformer in interface LeafIQTree

Specified by:

acceptNodeTransformer in interface QueryNode

Throws:

QueryNodeTransformationException

newAtom

IntensionalDataNode newAtom(DataAtom<AtomPredicate> newAtom)