How to use

org.apache.jena.sparql.engine.ref.QueryEngineRef

constructor

@Override
public Plan create(Query query, DatasetGraph dataset, Binding binding, Context context)
{
  QueryEngineRef engine = new QueryEngineRef(query, dataset, binding, context) ;
  return engine.getPlan() ;
}

@Override
public Plan create(Op op, DatasetGraph dataset, Binding binding, Context context)
{
  QueryEngineRef engine = new QueryEngineRef(op, dataset, binding, context) ;
  return engine.getPlan() ;
}

static public QueryIterator execRef(Op op, DatasetGraph dsg)
{
  QueryEngineRef qe = new QueryEngineRef(op, dsg, ARQ.getContext().copy()) ;
  return qe.getPlan().iterator() ;
}