com.hp.hpl.jena.sparql.engine.iterator
Class QueryIterProjectMerge

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.QueryIter1
                  com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply
                      com.hp.hpl.jena.sparql.engine.iterator.QueryIterProjectMerge

All Implemented Interfaces:

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

public class QueryIterProjectMerge
extends QueryIterRepeatApply

Execute a projection in the middle of an execution. This requires the outcome of each stage of execution (substitution evaluation assumed) to be merged with the input binding. Bindings should already be compatible, otherwise this code should not be used.

Field Summary

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

traceIterators

Constructor Summary

QueryIterProjectMerge(OpProject opProject, QueryIterator input, OpExecutor engine, ExecutionContext execCxt)

Method Summary

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIter1

output

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

close, getExecContext, getIteratorNumber, makeTracked, map, 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

QueryIterProjectMerge

public QueryIterProjectMerge(OpProject opProject,
                             QueryIterator input,
                             OpExecutor engine,
                             ExecutionContext execCxt)