[infinispan-dev] [ISPN-134] Creating @Jopr* annotations or extending @Managed* ones?

[Galder Zamarreno]

Hi,

Heiko, this is FYI too:

Re: https://jira.jboss.org/jira/browse/ISPN-134

I see different ways of doing this. Let's take the DefaultCacheManager 
as example. It has 4 @ManagedAttribute methods:

getDefinedCacheCount()
getCreatedCacheCount()
getVersion()
getDefinedCacheNames()

Now, at the jopr level, even these 4 would be treated differently. First 
two are measurement metrics, the two below are trait metrics. So, on top 
of jopr adding new fields, there's the issue that not all 
@ManagedAttribute map to the same thing on the jopr side.

So, my suggestion would be to have some jopr specific annotations that 
allow us to differentiate between different jopr types (i.e. 
@JoprMetric(dataType="measurement"), @JoprMetric(dataType="trait")) and 
where we can add any extra information required by jopr, i.e. 
displayName...etc.

I think using this annotations would be cleaner than extending @Managed* 
ones. Also, such @Jopr* or annotations would need to live in core/

Heiko, does Jopr have annotations like this already?

Thoughts?
-- 
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache