com.hp.hpl.jena.sparql.engine.main.iterator

Class QueryIterJoinBase

java.lang.Object

com.hp.hpl.jena.sparql.util.PrintSerializableBase

com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase

com.hp.hpl.jena.sparql.engine.iterator.QueryIter

com.hp.hpl.jena.sparql.engine.iterator.QueryIter2

com.hp.hpl.jena.sparql.engine.main.iterator.QueryIterJoinBase

All Implemented Interfaces:

QueryIterator, PrintSerializable, Iterator<Binding>, Printable, Closeable

Direct Known Subclasses:

QueryIterJoin, QueryIterLeftJoin

public abstract class QueryIterJoinBase
extends QueryIter2

Join or LeftJoin by calculating both sides, then doing the join It usually better to use substitute algorithm (not this QueryIterator in other words) as that is effectively indexing from one side into the other.

Field Summary

Fields inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase

traceIterators

Constructor Summary

Constructors

Constructor and Description
QueryIterJoinBase(QueryIterator left, QueryIterator right, ExprList exprs, ExecutionContext execCxt)
QueryIterJoinBase(QueryIterator left, Table right, ExprList exprs, ExecutionContext execCxt)

Method Summary

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIter2

output

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIter

close, getExecContext, getIteratorNumber, makeTracked, materialize, materialize, output

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase

cancel, debug, hasNext, next, nextBinding, remove

Methods inherited from class com.hp.hpl.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 com.hp.hpl.jena.sparql.util.PrintSerializable

toString

Constructor Detail

QueryIterJoinBase

public QueryIterJoinBase(QueryIterator left,
                 QueryIterator right,
                 ExprList exprs,
                 ExecutionContext execCxt)

QueryIterJoinBase

public QueryIterJoinBase(QueryIterator left,
                 Table right,
                 ExprList exprs,
                 ExecutionContext execCxt)