On 9/25/05, Patrick Casey <[EMAIL PROTECTED]> wrote:
>
> Well, you piqued my curiosity and here's what I've found after some
> quality time with the hibernate source code. The short version is that
> you're right; there is a secondary cache, and it does cache objects. It
> does, however, have certain "hidden" restrictions that explain why it worked
> in your example, but not in mine.
>
> 1) Despite what the ehCache documentation says about using default
> cache regions, it will *not* use a default cache region for second level
> cache. If you don't manually create a cache in your ehcache.xml for a given
> persistent class, the default hibernate Persister will get back a null cache
> and treat the entity as uncacheable.
the documentation is quite obscure.
That is what I have in my ehCache.xml
<defaultCache
maxElementsInMemory="50000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="false"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
/>
<cache name="org.hibernate.cache.StandardQueryCache"
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="false"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
/>
<cache name="org.hibernate.cache.UpdateTimestampsCache"
maxElementsInMemory="5000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="false"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
/>
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