Are there limitations to second level cache?

Jon Turgeon · **Joined:** Fri Apr 08, 2005 11:29 am **Posts:** 3

Hibernate version: 3.2.0.cr4

Hello,
I am using Spring with Hibernate.

I have been able to get simple objects to cache but when I try to cache an object that has a composite id and contains a set it will not cache. I have set <cache usage="read-write"/> in the .hbm, setup the ehcache config and am

Code:

        HibernateTemplate ht = getHibernateTemplate();
        ht.setCacheQueries(true);
        return ht.loadAll(clazz);

doing this to get the objects. The first time a single sql is generated that gets all the objects. Every time after that it seems to issue single sql statements for each object using the composite id.

Id there anything different with caching when you either have a composite id or a set?

Jon Turgeon · **Joined:** Fri Apr 08, 2005 11:29 am **Posts:** 3

I am still looking into this, does anyone know if it is even possible to use the second level cache on objects that have a composite id? I have noticed several un-answered threads that are about caching and composite id's.