org.openrdf.query.algebra.evaluation.federation
Class ServiceJoinConversionIteration

java.lang.Object
  info.aduna.iteration.CloseableIterationBase<T,X>
      info.aduna.iteration.ConvertingIteration<BindingSet,BindingSet,QueryEvaluationException>
          org.openrdf.query.algebra.evaluation.federation.ServiceJoinConversionIteration

All Implemented Interfaces:

CloseableIteration<BindingSet,QueryEvaluationException>, Iteration<BindingSet,QueryEvaluationException>

public class ServiceJoinConversionIteration
extends ConvertingIteration<BindingSet,BindingSet,QueryEvaluationException>

Inserts original bindings into the result, uses ?__rowIdx to resolve original bindings. See ServiceJoinIterator and SPARQLFederatedService.

Author:

Andreas Schwarte

Field Summary

protected List<BindingSet>

bindings

Constructor Summary

ServiceJoinConversionIteration(CloseableIteration<BindingSet,QueryEvaluationException> iter, List<BindingSet> bindings)

Method Summary

protected BindingSet

convert(BindingSet bIn) Converts a source type object to a target type object.

Methods inherited from class info.aduna.iteration.ConvertingIteration

handleClose, hasNext, next, remove

Methods inherited from class info.aduna.iteration.CloseableIterationBase

close, isClosed

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bindings

protected final List<BindingSet> bindings

Constructor Detail

ServiceJoinConversionIteration

public ServiceJoinConversionIteration(CloseableIteration<BindingSet,QueryEvaluationException> iter,
                                      List<BindingSet> bindings)

Method Detail

convert

protected BindingSet convert(BindingSet bIn)
                      throws QueryEvaluationException

Description copied from class: ConvertingIteration

Converts a source type object to a target type object.

Specified by:

convert in class ConvertingIteration<BindingSet,BindingSet,QueryEvaluationException>

Throws:

QueryEvaluationException