On Jun 28, 2012, at 11:26 AM, Mircea Markus wrote:
This is a problem that pops up constantly:
User: "I add a listener to my distributed/replicated cache but this gets
invoked numOwners times - can I make that to be invoked only once cluster wise?"
Developer: "Yes, you can! You have to do that and that..."
What about a "singleton" attribute on the Listener? Would make the reply
shorter:
Developer: "Use @Listener(singleton=true)"
Hmmm, that seems doable without any extra attributes.
For a replicated cache, take the view and pick a node (consistently)
For a distributed cache, find the primary owner of a key.
Has this been asked so often? I don't recall right now… :)
Cheers,
Mircea
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Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache