On 23 Sep 2014, at 14:53, Mircea Markus <mmar...@redhat.com> wrote:

> On Sep 23, 2014, at 15:18, Emmanuel Bernard <emman...@hibernate.org> wrote:
> 
>>> I am not sold on this as it seems pretty trivial to decipher which
>>> operation is which and the information would be present on the
>>> javadocs as well.
>> 
>> I very strongly disagree. Cf the other thread with Radim 's comment on 
>> topology error. 
>> And think about *future* evolutions. The enum would make that much safer. In 
>> the bin enum world you would have to introduce a new 
>> YetAnotherKeyValueFilter interface :)
> 
> Nicer than an enum would be an explicit method, e.g. 
> handlePut/handleDelete/handleCreate/handleUpdate, as these would also receive 
> the appropriate param list.

^ Hmmmmm, not sure I like that. If you look at the remote event blog posts, 
you’ll see that I use create/modify/remove annotations and then the parameter 
to the callback varies depending on whether you had converter applied to it or 
not. IOW, without a converter, a created event parameter is a 
ClientCacheEntryCreatedEvent, whereas with a converter, the parameter is a 
ClientCacheEntryCustomEvent. Two different types of events for the same event 
type. If you did it with explicit methods, you’d have to duplicate them for 
custom events.

> Of course this means moving away from the KeyValueFilter to an UpdateFilter 
> (good name, Radim) used only for cluster listeners. 

I don’t like the name actually. I associate update with modifications, and in 
similar vein, inserts with creation and delete with removals. 

> Will, what would be the overall impact on the API as right now the 
> KeyValueFilter is reused between several components, like the cluster 
> iterator.
> 
> Cheers,
> -- 
> Mircea Markus
> Infinispan lead (www.infinispan.org)
> 
> 
> 
> 
> 
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--
Galder Zamarreño
gal...@redhat.com
twitter.com/galderz


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