[jboss-user] [JBoss Cache: Core Edition] - How do items get automatically removed from the cache?

[eightmd]

I've just started looking at JBossCache and I was writing some tests to see how it works. I am trying to put nodes into the cache and then see them expire. I have used a region and used n LRU eviction policy. I was thinking that setting TimeToLiveSeconds and/or MaxAgeSeconds would cause the node to be completely removed from the cache. I know that the RegionManager has to wake up so I setWakeUpIntervalSeconds on the EvictionConfiguration to 4 seconds.


  | 				LRUConfiguration lru = new LRUConfiguration();
  | 				lru.setMaxNodes(5000);
  | 				lru.setTimeToLiveSeconds(2);
  | 				lru.setMaxAgeSeconds(2);
  | 

I did a sleep for 10 seconds and the node was still there.

I then tried doing the following which I found in the user manual.


  | 	Long future = new Long(System.currentTimeMillis() + 2000);
  | 	cache.getRoot().getChild(nodeFqn).put(ExpirationConfiguration.EXPIRATION_KEY, future);
  | 			
  | 	assertTrue(cache.getRoot().hasChild(nodeFqn));
  | 	Thread.sleep(10000);
  | 			
  | 	// after 5 seconds, expiration completes
  | 	assertFalse(cache.getRoot().hasChild(nodeFqn));
  | 

The node was still there.

Then I tried this:


  | 			ExpirationConfiguration ec = new ExpirationConfiguration();
  | 			ec.setTimeToLiveSeconds(2);
  | 							
  | cache.getRoot().getChild(nodeFqn).put(ExpirationConfiguration.EXPIRATION_KEY, ec);
  | 			
  | 			assertTrue(cache.getRoot().hasChild(nodeFqn));
  | 			Thread.sleep(10000);
  | 			
  | 			// after 5 seconds, expiration completes
  | 			Node n1 = cache.getRoot().getChild(nodeFqn);
  | 			assertFalse(cache.getRoot().hasChild(nodeFqn));
  | 

The node was still there. So if anyone can tell me what I'm missing I would appreciate it. I am expecting to see the node gone from the cache by one of these methods. Thanks for any help you can provide.

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