I created a Custom CacheProvider for Hibernate based on Websphere DistributedMap. At server startup, so good, but my problem is: buildCache method is never called.

an idea or help

thank you in advance.

Your description looks incomplete... but
did you mark your entity classes as @Cacheable ? (annotation style)

Hi nadjim,
interesting, are you going to contribute it (open source) to Hibernate?
On which version of Hibernate are you developing? please note the Caching API was recently updated, and I believe that only the EHCache and Infinispan implementations are up-to-date examples on how to make one properly.

Hibernate4 is coming soon, and two of the oldest and unmaintained caches have been dropped, might be a good time to propose a new one on the developer list: http://hibernate.org/community/mailinglists