Module org.apache.jena.arq

Package org.apache.jena.sparql.engine.index

Class SetIndexTable

java.lang.Object

org.apache.jena.sparql.engine.index.SetIndexTable

All Implemented Interfaces:

IndexTable

public class SetIndexTable
extends Object
implements IndexTable

An IndexTable implementation optimized for the case where there is only a single common variable

Constructor Summary

Constructors

Constructor	Description
SetIndexTable(Set<Var> commonVars, QueryIterator data)	Creates a new index table

Method Summary

Modifier and Type	Method	Description
boolean	containsCompatibleWithSharedDomain(Binding binding)	Is there a binding in the table that has a shared domain (variables in common) and is join-compatible?
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

SetIndexTable

public SetIndexTable(Set<Var> commonVars,
 QueryIterator data)

Creates a new index table

Parameters:

commonVars - Common Variables

data - Data

Method Details

containsCompatibleWithSharedDomain

public boolean containsCompatibleWithSharedDomain(Binding binding)

Description copied from interface: IndexTable

Is there a binding in the table that has a shared domain (variables in common) and is join-compatible? This is the condition for MINUS to exclude the argument binding.

Specified by:

containsCompatibleWithSharedDomain in interface IndexTable

toString

public String toString()

Overrides:

toString in class Object