EJB 2 Entity bean caching

[chrismm]

Is it true that CMP entity beans are only cached in the appserver if they are looked up by primary key ?
Is it possible to see the cache hits by the appserver ?

[tomerbd2]

you can add SQL logging to CMP and thus see if its taking value from cache or from database

http://tomerbd.blogspot.com/2006/02/view-cmp-generated-sqls.html

Tomer