Package it.unibz.inf.ontop.iq.optimizer.impl.lj

Class RequiredExtensionalDataNodeExtractor

java.lang.Object

it.unibz.inf.ontop.iq.optimizer.impl.lj.RequiredExtensionalDataNodeExtractor

@Singleton
public class RequiredExtensionalDataNodeExtractor
extends Object

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RequiredExtensionalDataNodeExtractor()

Method Summary

Modifier and Type	Method	Description
protected Stream<ExtensionalDataNode>	extractOtherType(IQTree tree)	By default, not digging into other kind of trees
Stream<ExtensionalDataNode>	extractSomeRequiredNodes(IQTree tree, boolean fromLeft)	Not required to be exhaustive Expects the tree to come from a normalized tree (but won't fail if it is not the case)

Methods inherited from class java.lang.Object

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

Constructor Detail

RequiredExtensionalDataNodeExtractor

@Inject
protected RequiredExtensionalDataNodeExtractor()

Method Detail

extractSomeRequiredNodes

public Stream<ExtensionalDataNode> extractSomeRequiredNodes(IQTree tree,
                                                            boolean fromLeft)

Not required to be exhaustive Expects the tree to come from a normalized tree (but won't fail if it is not the case)

extractOtherType

protected Stream<ExtensionalDataNode> extractOtherType(IQTree tree)

By default, not digging into other kind of trees