Yes on all counts. Lucene doesn't modify query objects, so they are save for reuse among multiple threads.
-Yonik Apache Lucene Eurocon 2010 18-21 May 2010 | Prague 2010/5/10 Mindaugas Žakšauskas <min...@gmail.com>: > Hi, > > Can anybody confirm whether MatchAllDocsQuery can be used as an > immutable singletone? By this I mean creating a single instance and > sharing it whenever I need to either use it on its own or in > cojunction with other queries put into a BooleanQuery; to result all > documents in a search result. Can the same instance even be reused > among different threads? > > What would be the best way implementing MatchNoDocsQuery? My initial > tests show that a new BooleanQuery() without any additional clauses > would just do the job, but I just wanted to double check whether this > is be a reliable assumption. Above questions also apply - could this > be reused among different contexts, threads? > > Thanks in advance. > > Regards, > Mindaugas > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
