[jboss-user] [JBossCache] - How to add without overwriting

[vincent.marquez]

I'm interested in learning the correct way to add data to a node only if the node is empty.  My concern is that between checking if an FQN exists, and adding a new object under that specific FQN, data could have been added to the cache.

 I understand there is explicit locking on Node objects, but if the FQN does not exist in the cache, it will return null.   Is there a basic pattern or strategy I should be taking to avoid this potential problem?  Thanks in advance for any suggestions.   

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