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Re: [aspectj-users] AspectJ-based cache in a Cluster
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AspectJ aspects (like any regular Java object) know nothing about the
cluster. So if you keep your state (the cached data) directly in
fields of the aspect instance, you will have one aspect instance (and
hence one cache) per JVM. You'll need to use a clustering product
such as Tangosol Coherence, Terracotta, or Gigaspaces to get a
clustered cache. For Coherence or Gigaspaces the aspect should act as
a controller (coordinating cache gets/puts), delegating to a cache
object that the aspect has been configured with. Terracotta works a
little differently and clusters object state directly :- so if using
Terracotta you would designate the field anchoring the entity bean
data as a "shared root". (Terracotta uses AOP technology -
AspectWerkz - under the covers so you don't have to).
Regards, Adrian.
On 9 Oct 2006, at 16:18, Marco Mistroni wrote:
hello all,
i was wondering how Aspects behave in a cluster..
i plan to implement a cache of some Entity beans data using
AspectJ, By usign an aspect that has system-scope, but i was
wondering what would be the behaviour in a cluster.........
anyone can comment on that?
thanks in advance and regards
marco
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