On 08/05/11 19:15, Jorge Christodoulou wrote:
Thank you for your reply. You're right, more like a join where they have common
variables...
The main idea of what i'm doing is that i get 2 ResultSets from 2 different
reasoners(and queryEngines) running the same ontology and i want to combine the
results as if it was one query.
So i would like to make a function like this: public ResultSet
getJoin(ResultSet a, ResultSet b){
for(; a.hasNext() ;)
for(; b.hasNext() ;)
....
....
Any ideas cause i'm kind of new to Jena???
Easier to get the bindings : i.e use ResultSet.nextBinding
and then use
Algebra.compatible(binding1, binding2)
If the results sets are small, just do an inner loop join.
Andy
Date: Sat, 7 May 2011 21:40:31 +0100
From: [email protected]
To: [email protected]
Subject: Re: Intersection of 2 ResultSet in Jena
On 07/05/11 17:25, Jorge Christodoulou wrote:
Does anyone know a way to get the intersection of two Result
Sets(com.hp.hpl.jena.query.ResultSet)?
I'm curious - what's the use case for this?
There's nothing to do that. You will have to write some code to do it -
getting the results as QueryIterators may make it possible to write it
using ARQ query engine code. Maybe.
Do you want exact intersection or where they have common variables, the
values are the same (which is a join).
Andy
