[infinispan-issues] [JBoss JIRA] (ISPN-6443) Add ability to cancel an event in a listener

[Tristan Tarrant (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tristan Tarrant reassigned ISPN-6443:
-------------------------------------

    Assignee: William Burns


> Add ability to cancel an event in a listener
> --------------------------------------------
>
>                 Key: ISPN-6443
>                 URL: https://issues.jboss.org/browse/ISPN-6443
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Core, Expiration
>    Affects Versions: 8.2.0.Final
>            Reporter: Vincent Massol
>            Assignee: William Burns
>
> My use case is the following:
> * I have some lenghty computation that I cache
> * I don't want users to incur the wait before the computation is finished
> One idea is:
> * Upon expiration (or eviction), I'd like to put back the entry in the cache and start a thread to perform a recomputation (which would put the recomputed value in the cache)
> * The issue is that the cache has a lock on the entry and thus I can't put it back in the cache.
> Thus one solution is to be able to cancel the expiration/eviction events (and thus not have to put back the entry in the cache).
> Of course I'm very open to hear if there are other solutions to this! :) Thanks a lot



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