it.unibz.inf.ontop.iq.node

Interface UnaryOperatorNode

All Superinterfaces:

Cloneable, QueryNode

All Known Subinterfaces:

AggregationNode, ConstructionNode, DistinctNode, ExtendedProjectionNode, FilterNode, OrderByNode, QueryModifierNode, SliceNode

All Known Implementing Classes:

AggregationNodeImpl, ConstructionNodeImpl, DistinctNodeImpl, ExtendedProjectionNodeImpl, FilterNodeImpl, OrderByNodeImpl, QueryModifierNodeImpl, SliceNodeImpl

public interface UnaryOperatorNode
extends QueryNode

Has ONE child

Method Summary

Modifier and Type	Method and Description
UnaryOperatorNode	acceptNodeTransformer(HomogeneousQueryNodeTransformer transformer) "Accept" method for the "Visitor" pattern.
IQTree	acceptTransformer(IQTree tree, IQTreeVisitingTransformer transformer, IQTree child)
<T> T	acceptVisitor(IQVisitor<T> visitor, IQTree child)
IQTree	applyDescendingSubstitution(ImmutableSubstitution<? extends VariableOrGroundTerm> descendingSubstitution, Optional<ImmutableExpression> constraint, IQTree child)
IQTree	applyDescendingSubstitutionWithoutOptimizing(ImmutableSubstitution<? extends VariableOrGroundTerm> descendingSubstitution, IQTree child)
IQTree	applyFreshRenaming(InjectiveVar2VarSubstitution renamingSubstitution, IQTree child, IQTreeCache treeCache)
it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable>	computeNotInternallyRequiredVariables(IQTree child)
it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<ImmutableSubstitution<NonVariableTerm>>	getPossibleVariableDefinitions(IQTree child)
VariableNullability	getVariableNullability(IQTree child)
it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable>>	inferUniqueConstraints(IQTree child)
boolean	isConstructed(Variable variable, IQTree child)
boolean	isDistinct(IQTree tree, IQTree child)
IQTree	liftIncompatibleDefinitions(Variable variable, IQTree child, VariableGenerator variableGenerator) Deprecated.
IQTree	normalizeForOptimization(IQTree child, VariableGenerator variableGenerator, IQProperties currentIQProperties)
IQTree	propagateDownConstraint(ImmutableExpression constraint, IQTree child)
IQTree	removeDistincts(IQTree child, IQProperties iqProperties)
void	validateNode(IQTree child) Only validates the node, not its child

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

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

Method Detail

normalizeForOptimization

IQTree normalizeForOptimization(IQTree child,
                                VariableGenerator variableGenerator,
                                IQProperties currentIQProperties)

applyDescendingSubstitution

IQTree applyDescendingSubstitution(ImmutableSubstitution<? extends VariableOrGroundTerm> descendingSubstitution,
                                   Optional<ImmutableExpression> constraint,
                                   IQTree child)

applyDescendingSubstitutionWithoutOptimizing

IQTree applyDescendingSubstitutionWithoutOptimizing(ImmutableSubstitution<? extends VariableOrGroundTerm> descendingSubstitution,
                                                    IQTree child)

applyFreshRenaming

IQTree applyFreshRenaming(InjectiveVar2VarSubstitution renamingSubstitution,
                          IQTree child,
                          IQTreeCache treeCache)

getVariableNullability

VariableNullability getVariableNullability(IQTree child)

isConstructed

boolean isConstructed(Variable variable,
                      IQTree child)

isDistinct

boolean isDistinct(IQTree tree,
                   IQTree child)

liftIncompatibleDefinitions

@Deprecated
IQTree liftIncompatibleDefinitions(Variable variable,
                                               IQTree child,
                                               VariableGenerator variableGenerator)

Deprecated.

propagateDownConstraint

IQTree propagateDownConstraint(ImmutableExpression constraint,
                               IQTree child)

acceptTransformer

IQTree acceptTransformer(IQTree tree,
                         IQTreeVisitingTransformer transformer,
                         IQTree child)

acceptVisitor

<T> T acceptVisitor(IQVisitor<T> visitor,
                    IQTree child)

acceptNodeTransformer

UnaryOperatorNode 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 QueryNode

Throws:

QueryNodeTransformationException

validateNode

void validateNode(IQTree child)
           throws InvalidIntermediateQueryException

Only validates the node, not its child

Throws:

InvalidIntermediateQueryException

getPossibleVariableDefinitions

it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<ImmutableSubstitution<NonVariableTerm>> getPossibleVariableDefinitions(IQTree child)

removeDistincts

IQTree removeDistincts(IQTree child,
                       IQProperties iqProperties)

inferUniqueConstraints

it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable>> inferUniqueConstraints(IQTree child)

computeNotInternallyRequiredVariables

it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<Variable> computeNotInternallyRequiredVariables(IQTree child)