it.unibz.inf.ontop.iq.node.normalization.impl

Class InjectiveBindingLiftState

java.lang.Object

it.unibz.inf.ontop.iq.node.normalization.impl.InjectiveBindingLiftState

public class InjectiveBindingLiftState
extends Object

Out of a child construction node and a grand child tree, tries to lift injective definitions above (that is inside ancestor construction nodes). Typically used when the implicit "central" node (the parent of the child construction node) is a DISTINCT. Also used for the normalization of AggregationNodes.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	InjectiveBindingLiftState(ConstructionNode childConstructionNode, IQTree grandChildTree, VariableGenerator variableGenerator, CoreSingletons coreSingletons) Initial state

Method Summary

Modifier and Type	Method and Description
it.unibz.inf.ontop.com.google.common.collect.ImmutableList<ConstructionNode>	getAncestors() The oldest ancestor is first
Optional<ConstructionNode>	getChildConstructionNode()
IQTree	getGrandChildTree()
InjectiveBindingLiftState	liftBindings()

Methods inherited from class java.lang.Object

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

Constructor Detail

InjectiveBindingLiftState

protected InjectiveBindingLiftState(@Nonnull
                                    ConstructionNode childConstructionNode,
                                    IQTree grandChildTree,
                                    VariableGenerator variableGenerator,
                                    CoreSingletons coreSingletons)

Initial state

Method Detail

getGrandChildTree

public IQTree getGrandChildTree()

getChildConstructionNode

public Optional<ConstructionNode> getChildConstructionNode()

getAncestors

public it.unibz.inf.ontop.com.google.common.collect.ImmutableList<ConstructionNode> getAncestors()

The oldest ancestor is first

liftBindings

public InjectiveBindingLiftState liftBindings()