[jboss-jira] [JBoss JIRA] Updated: (JBCACHE-801) Restore EvictionPolicy ability to ignore events based on event type

[Brian Stansberry (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBCACHE-801?page=all ]

Brian Stansberry updated JBCACHE-801:
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    JBoss Forum Reference: http://www.jboss.com/index.html?module=bb&op=viewforum&f=207

> Restore EvictionPolicy ability to ignore events based on event type
> -------------------------------------------------------------------
>
>                 Key: JBCACHE-801
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-801
>             Project: JBoss Cache
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 1.4.0.SP1, 1.4.0, 1.3.0.SP3, 1.3.0.SP2, 1.3.0.SP1, 1.3.0
>            Reporter: Brian Stansberry
>         Assigned To: Brian Stansberry
>             Fix For: 2.0.0
>
>
> When we moved to EvictionInterceptor from a TreeCacheListener-based approach, one thing we lost is the ability for custom policies to prevent certain kinds of events going into the eviction queue. For example, a customer wants to prevent node modifications and visits from going in the queue as they are far too numerous for his app; he just wants adds (and maybe removes) so he can evict solely based on maxNodeAge.
> Currently the only hook we provide to prevent an event going into the queue is EvictionPolicy.canIgnoreEvent(Fqn). But, when this call is made, we know the event type and even have a bunch of int constants identifying the valid types. So, we will 1) create a proper JDK5 Enum of the event types, and 2) change the EvictionPolicy interface to:
> boolean canIgnoreEvent(Fqn fqn, NodeEventType eventType)	
> The existing policies would just ignore the second parameter.

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