persistence.xml properties for cache provider?

bnewport · **Joined:** Sat Jan 12, 2008 10:17 pm **Posts:** 2

I can't seem to see the properties I place in the persistence.xml in the set of properties provided to the l2 cache provider. I'm trying to provide provider properties in the persistence.xml properties section and access them from the cache provider.

Any ideas?

hardy.ferentschik · **Posted:** Mon Jan 14, 2008 2:24 am

Here are some properties from my persistence.xml:

Code:

<properties>
   <property
      name="foo.bar.MyClass"
      value="read-write" />

   <!-- 2nd level cache  -->
   <property name="hibernate.cache.provider_class"
      value="net.sf.ehcache.hibernate.SingletonEhCacheProvider" />
   <property name="hibernate.cache.use_second_level_cache"
      value="true" />
   <property name="hibernate.generate_statistics" value="true" />
   <property name="hibernate.cache.use_structured_entries"
      value="true" />

   <property name="hibernate.hbm2ddl.auto" value="create-drop" />
   <property name="hibernate.show_sql" value="false" />
   <property name="hibernate.format_sql" value="false" />

</properties>

You find more information here: http://www.hibernate.org/hib_docs/entitymanager/reference/en/html/configuration.html

I hope this helps :)

bnewport · **Joined:** Sat Jan 12, 2008 10:17 pm **Posts:** 2

That much I know :). The problem is if I add my own properties (non hibernate ones) to that list, they are not in the list of properties passed to the start method of the cache provider.

emmanuel · **Posted:** Tue Jan 15, 2008 6:25 pm

I looked at the code and did some tests but I can't find why you are seeing this behavior. Are you sure they disappeared? You don't have multiple PU set up?
Try to give the debugger a try, the method filling up the Cache provider is CacheFactory.createCache