Query to return shared data for performance reasons.

[Gustav Trede]

hello,

Im interested in helping openjpa to implement that query can return 
shared objects from the cache.

On many usage cases its only of interest to read data, no need to get a 
clone/copy then.
(and yes its up to the user to not actually edit the returned data.)

This exists in eclipselink and works good, QueryHints.READ_ONLY.

Could i please get some initial help,  where to do this in the code base 
in a nice way ?.

regards
gustav