Hey Chris, Thanks for reply.
The exception is ArrayIndexOutOfBound. It is coming because searcher may return bitDocSet for query1 and sortedIntDocSet for query2 [could be possible]. In that case, sortedIntDocSet doesn't implement intersection and will cause this exception. Thanks and regards, Gajendra Dadheech On Thu, May 7, 2015 at 6:06 AM, Chris Hostetter <hossman_luc...@fucit.org> wrote: > > : DocSet docset1 = Searcher.getDocSet(query1) > : DocSet docset2 = Searcher.getDocSet(query2); > : > : Docset finalDocset = docset1.intersection(docset2); > : > : Is this a valid approach ? Give docset could either be a sortedintdocset > or > : a bitdocset. I am facing ArrayIndexOutOfBoundException when > : union/intersected between different kind of docsets. > > as far as i know, that should be a totally valid usage -- since you didn't > provide the details of the stack trace or the code you wrote that > produced it it's hard to guess why/where it's causing the exception. > > FWIW: SolrIndexSearcher has getDocSet methods that take multiple arguments > which might be more efficient then doing the intersection directly (and > are cache aware) > > if all you care about is the *size* of the intersection, see the > SolrIndexSearcher.numDocs methods. > > -Hoss > http://www.lucidworks.com/ >