[jboss-jira] [JBoss JIRA] Commented: (JBCACHE-301) putIfAbsent(), putIfNull(), putIfEquals() etc

[Manik Surtani (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBCACHE-301?page=comments#action_12339777 ] 
            
Manik Surtani commented on JBCACHE-301:
---------------------------------------

putIfNull() implemented.  Limited use for other such helpers, such as putIfEquals()?

> putIfAbsent(), putIfNull(), putIfEquals() etc
> ---------------------------------------------
>
>                 Key: JBCACHE-301
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-301
>             Project: JBoss Cache
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>            Reporter: Bela Ban
>         Assigned To: Manik Surtani
>             Fix For: 2.0.0
>
>
> atomic operations, this can avoid code like
> Object o=cache.get(FQN, KEY);
> if(o != null && COND.equals(o)) { 
>     cache.put(FQN, KEY, myObj);
> }
> This is replaced with cache.putIfEquals(FQN, KEY,  COND, myObj);
> Another example:
> if(!cache.exists(FQN, KEY))
>   cache.put(FQN, KEY, VAL);
> can be replaced with
> cache.putIfAbsent(FQN, KEY, VAL)

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