Module org.apache.jena.arq

Package org.apache.jena.sparql.engine.iterator

Class QueryIterHalfJoin

java.lang.Object

org.apache.jena.sparql.util.PrintSerializableBase

org.apache.jena.sparql.engine.iterator.QueryIteratorBase

org.apache.jena.sparql.engine.iterator.QueryIter

org.apache.jena.sparql.engine.iterator.QueryIter2

org.apache.jena.sparql.engine.iterator.QueryIter2LoopOnLeft

org.apache.jena.sparql.engine.iterator.QueryIterHalfJoin

All Implemented Interfaces:

Iterator<Binding>, org.apache.jena.atlas.io.Printable, org.apache.jena.atlas.iterator.IteratorCloseable<Binding>, org.apache.jena.atlas.lib.Closeable, QueryIterator, PrintSerializable

public class QueryIterHalfJoin
extends QueryIter2LoopOnLeft

SemiJoin and AntiJoin

Method Summary

Modifier and Type	Method	Description
static QueryIterator	antiJoin(QueryIterator left, QueryIterator right, ExecutionContext execCxt)
static QueryIterator	semiJoin(QueryIterator left, QueryIterator right, ExecutionContext execCxt)

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIter2

output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIter

close, flatMap, getExecContext, getIteratorNumber, makeTracked, map, materialize, materialize, output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIteratorBase

cancel, hasNext, next, nextBinding, remove

Methods inherited from class org.apache.jena.sparql.util.PrintSerializableBase

toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface org.apache.jena.sparql.util.PrintSerializable

toString

Methods inherited from interface org.apache.jena.sparql.engine.QueryIterator

isJoinIdentity

Method Details

semiJoin

public static QueryIterator semiJoin(QueryIterator left,
 QueryIterator right,
 ExecutionContext execCxt)

antiJoin

public static QueryIterator antiJoin(QueryIterator left,
 QueryIterator right,
 ExecutionContext execCxt)