[infinispan-issues] [JBoss JIRA] Issue Comment Edited: (ISPN-735) Bug in the cache event notifications {CacheStarted, CacheStopped, ViewChanged}

[Thomas Fuller (JIRA)]

    [ https://jira.jboss.org/browse/ISPN-735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12559216#action_12559216 ] 

Thomas Fuller edited comment on ISPN-735 at 10/26/10 3:53 AM:
--------------------------------------------------------------

Hi Manik,

"Aha, you do realise that listeners with @CacheStopped, @CacheStarted and @ViewChanged should be registered on the EmbeddedCacheManager and NOT the Cache, right?"

No I wasn't aware of this -- I'll try this later today and come back to you (if necessary).

"Have you tried this with 4.2.0.ALPHA4 or 4.2.0-SNAPSHOT?"

I have not -- should I? (given what you said above it may not make sense)

Finally, the documentation for CacheStarted, CacheStopped, and ViewChanged is not explicit regarding how these annotations should be used. Would it make sense for me to either amend this defect or add a new low-priority one requesting an update on the documentation for these annotations?

Thanks for your help,

Tom

      was (Author: thospfuller):
    "Aha, you do realise that listeners with @CacheStopped, @CacheStarted and @ViewChanged should be registered on the EmbeddedCacheManager and NOT the Cache, right?"

No I wasn't aware of this -- I'll try this later today and come back to you (if necessary).

"Have you tried this with 4.2.0.ALPHA4 or 4.2.0-SNAPSHOT?"

I have not -- should I? (given what you said above it may not make sense)

Finally, the documentation for CacheStarted, CacheStopped, and ViewChanged is not explicit regarding how these annotations should be used. Would it make sense for me to either amend this defect or add a new low-priority one requesting an update on the documentation for these annotations?

Thanks for your help,

Tom
  
> Bug in the cache event notifications {CacheStarted, CacheStopped, ViewChanged}
> ------------------------------------------------------------------------------
>
>                 Key: ISPN-735
>                 URL: https://jira.jboss.org/browse/ISPN-735
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Listeners
>    Affects Versions: 4.1.0.Final
>            Reporter: Thomas Fuller
>            Assignee: Manik Surtani
>
> I am currently working on adding some functionality to the Grails Infinispan Plugin, which relies on Infinispan-4.1.0.FINAL (Radegast). This particular functionality is expressed as a mixin and will allow the developer to use a closure to receive event notifications from the cache -- for example:
> agentCache.onCacheEntryLoaded {
>         log.info ("=====> Cache entry loaded: $it")
> }
> I have a basic unit test for each of the events detailed in the Listener documentation here:
> http://docs.jboss.org/infinispan/4.0/apidocs/org/infinispan/notifications/Listener.html
> however the following three annotations are not being registered (whereas all the others are):
> import org.infinispan.notifications.cachemanagerlistener.annotation.CacheStarted
> import org.infinispan.notifications.cachemanagerlistener.annotation.CacheStopped
> import org.infinispan.notifications.cachemanagerlistener.annotation.ViewChanged
> Instead I'm receiving a message like the following when my test application starts:
> cachelistener.CacheNotifierImpl Attempted to register listener of class class com.coherentlogic.grails.infinispan.listeners.CacheStoppedListener, but no valid,public methods annotated with method-level event annotations found! Ignoring listener.
> and likewise my unit tests are also failing.
> Here's an example of one of the listener implementations which works:
> @Listener
> class CacheEntryCreatedListener {
>    
>     private def closure
>    
>     @CacheEntryCreated
>     public void cacheEntryCreated (cacheEntryCreatedEvent) {
>         closure?.call (cacheEntryCreatedEvent)
>     }
> }
> Here's an example of one of the listener implementations which does not work:
> @Listener
> class CacheStoppedListener {
>     private def closure
>    
>     @CacheStopped
>     public void cacheStopped (cacheStoppedEvent) {
>         closure?.call (cacheStoppedEvent)
>     }
> }

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