this.flowProcess = flowProcess;
this.spillStrategy = getSpillStrategy();
FactoryLoader loader = FactoryLoader.getInstance();
this.tupleCollectionFactory = loader.loadFactoryFrom( flowProcess, TupleMapFactory.TUPLE_MAP_FACTORY, HadoopTupleCollectionFactory.class );
}
@Override
protected Collection<Tuple> createTupleCollection( Tuple tuple )
{