how to cache a pre-compiled query?

Hi Maurice,

I suppose this will not work, unfortunatedly: the query processor contains some (dynamically evaluated like databases to access) yet stateful information that makes it impossible to cache.

For those very reasons I'd suggest you to use ThreadLocals [1] and a dedicated processor per Thread; that way you are definitely on the safe side. Creating an instance of QueryProcessor should be a rather lightweight operation, as such I hope this suits your needs. I hope this helped, feel free to ask for more! Kind regards Michael [1] http://docs.oracle.com/javase/6/docs/api/java/lang/ThreadLocal.html

I am trying to use QueryProcessor to compile and cache for later, in case no used modules have changed, is this ok? Can I concurrently use QueryProcessor within the same JVM in different threads? Thanks.