How to use

getPlan

method

in

org.apache.jena.sparql.engine.ref.QueryEngineRefQuad

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

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