com.bigdata.rdf.sparql.ast

Class GroupNodeVarBindingInfo

java.lang.Object

com.bigdata.rdf.sparql.ast.GroupNodeVarBindingInfo

public class GroupNodeVarBindingInfo
extends Object

Class summarizing the variable binding requirements for a given node (used for children in the join group), thus providing easy access to its variable binding information IGroupMemberNodes.

Version:

$Id$

Author:

Michael Schmidt

Constructor Summary

Constructors

Constructor and Description
GroupNodeVarBindingInfo(IGroupMemberNode node, StaticAnalysis sa, ASTJoinGroupFilterExistsInfo fExInfo) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
Set<IVariable<?>>	getDefinitelyProduced()
Set<IVariable<?>>	getDesiredBound()
Set<IVariable<?>>	getMaybeProduced()
IGroupMemberNode	getNode()
Set<IVariable<?>>	getRequiredBound()
Set<IVariable<?>>	leftToBeBound(Set<IVariable<?>> knownBound) Get variables that remain to be bound, assuming that the definitely incoming variables plus the variables passed as parameter are bound already.

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupNodeVarBindingInfo

public GroupNodeVarBindingInfo(IGroupMemberNode node,
                       StaticAnalysis sa,
                       ASTJoinGroupFilterExistsInfo fExInfo)

Constructor

Parameters:

node -

sa -

Method Detail

getNode

public IGroupMemberNode getNode()

getRequiredBound

public Set<IVariable<?>> getRequiredBound()

getDesiredBound

public Set<IVariable<?>> getDesiredBound()

getMaybeProduced

public Set<IVariable<?>> getMaybeProduced()

getDefinitelyProduced

public Set<IVariable<?>> getDefinitelyProduced()

leftToBeBound

public Set<IVariable<?>> leftToBeBound(Set<IVariable<?>> knownBound)

Get variables that remain to be bound, assuming that the definitely incoming variables plus the variables passed as parameter are bound already.