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

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.QueryIterConvert

All Implemented Interfaces:

QueryIterator, PrintSerializable, java.util.Iterator<Binding>, Printable, Closeable

Direct Known Subclasses:

QueryIterCommonParent, QueryIterDistinguishedVars, QueryIterFixed, QueryIterProject

public class QueryIterConvert
extends QueryIter1

Iterator over another QueryIterator, applying a converter function to each object that is returned by .next()

Nested Class Summary

static interface

QueryIterConvert.Converter

Field Summary

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

traceIterators

Constructor Summary

QueryIterConvert(QueryIterator iter, QueryIterConvert.Converter c, ExecutionContext context)

Method Summary

boolean	hasNextBinding() Implement this, not hasNext()
Binding	moveToNextBinding() Implement this, not next() or nextBinding() Returning null is turned into NoSuchElementException Does not need to call hasNext (can presume it is true)

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, 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

QueryIterConvert

public QueryIterConvert(QueryIterator iter,
                        QueryIterConvert.Converter c,
                        ExecutionContext context)

Method Detail

hasNextBinding

public boolean hasNextBinding()

Description copied from class: QueryIteratorBase

Implement this, not hasNext()

moveToNextBinding

public Binding moveToNextBinding()

Description copied from class: QueryIteratorBase

Implement this, not next() or nextBinding() Returning null is turned into NoSuchElementException Does not need to call hasNext (can presume it is true)