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

java.lang.Object
  extended by com.hp.hpl.jena.sparql.util.PrintSerializableBase
      extended by com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase
          extended by com.hp.hpl.jena.sparql.engine.iterator.QueryIter
              extended by com.hp.hpl.jena.sparql.engine.iterator.QueryIter2
                  extended by 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
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
 
Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase
abort, cancel, cancelAllowContinue, debug, hasNext, next, nextBinding, remove
 
Methods inherited from class com.hp.hpl.jena.sparql.util.PrintSerializableBase
output, 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
 
Methods inherited from interface org.openjena.atlas.io.Printable
output
 

Constructor Detail

QueryIterJoinBase

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

QueryIterJoinBase

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


Licenced under the Apache License, Version 2.0