it.unibz.inf.ontop.iq.node

Interface OrderByNode

All Superinterfaces:

Cloneable, QueryModifierNode, QueryNode, UnaryOperatorNode

All Known Implementing Classes:

OrderByNodeImpl

public interface OrderByNode
extends QueryModifierNode

Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory.createOrderByNode(it.unibz.inf.ontop.com.google.common.collect.ImmutableList<it.unibz.inf.ontop.iq.node.OrderByNode.OrderComparator>) for creating a new instance.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	OrderByNode.OrderComparator

Method Summary

Modifier and Type	Method and Description
Optional<OrderByNode>	applySubstitution(ImmutableSubstitution<? extends ImmutableTerm> substitution)
OrderByNode	clone() Cloning is needed for having multiple copies in the same intermediate query tree.
it.unibz.inf.ontop.com.google.common.collect.ImmutableList<OrderByNode.OrderComparator>	getComparators()

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

acceptNodeTransformer, acceptTransformer, acceptVisitor, applyDescendingSubstitution, applyDescendingSubstitutionWithoutOptimizing, applyFreshRenaming, computeNotInternallyRequiredVariables, getPossibleVariableDefinitions, getVariableNullability, inferUniqueConstraints, isConstructed, isDistinct, liftIncompatibleDefinitions, normalizeForOptimization, propagateDownConstraint, removeDistincts, validateNode

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

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

Method Detail

getComparators

it.unibz.inf.ontop.com.google.common.collect.ImmutableList<OrderByNode.OrderComparator> getComparators()

applySubstitution

Optional<OrderByNode> applySubstitution(ImmutableSubstitution<? extends ImmutableTerm> substitution)

clone

OrderByNode 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