Not sure whether I misunderstand/miss something or not, but isn't it possible
that you have multiple instances of the same type of CacheListener? like 2 of
ListenerTypeA and 3 of ListenerTypeB, so either way shown below modifies at a
"category" level?
-Xiawei
> On 5 Jan 2017, at 1:25 AM, Anthony Baker <aba...@pivotal.io> wrote:
>
> Another consideration is that gfsh commands should be easily scriptable, IMO.
>
> If I want to remove just one of the N listeners using this approach, I would
> need to acquire the list of existing listeners, remove the deselected
> listener, format the list, then pass it to this command. Is there a way to
> do this in one simple command?
>
> Anthony
>
>> On Jan 3, 2017, at 11:08 AM, Kirk Lund <kl...@apache.org> wrote:
>>
>> +1 I'm for the approach you're proposing. As long as it's documented in
>> user docs (it's not currently) then this provides a straightforward use of
>> the existing gfsh syntax without introducing too many new command options.
>>
>> Create the region with two cache listeners:
>> $ create region --name=data
>> --cache-listener="my.package.ListenerTypeA,my.package.ListenerTypeB"
>>
>> Change my mind and decide to remove one of the cache listeners:
>> $ alter region --name=data --cache-listener="my.package.ListenerTypeB"
>>
>> -Kirk
>>
>>
>>> On Tue, Jan 3, 2017 at 10:52 AM, Kevin Duling <kdul...@pivotal.io> wrote:
>>>
>>> Is this an intuitive User Experience?
>>>
>>> Given these two classes:
>>>
>>> public class ListenerTypeA extends CacheListenerAdapter implements
>>> Declarable
>>>
>>> and
>>>
>>> public class ListenerTypeB extends CacheListenerAdapter implements
>>> Declarable
>>>
>>> And they are programmatically added to a region:
>>>
>>> CacheListener listener1 = new ListenerTypeA();
>>>
>>> CacheListener listener2 = new ListenerTypeB();
>>>
>>> Region region = cache.<String,
>>> Customer>createClientRegionFactory(ClientRegionShortcut.CACHING_PROXY)
>>>
>>> .initCacheListeners(new CacheListener[]{listener1,
>>> listener2}).create("regionA");
>>>
>>>
>>> What would the expected gfsh command to remove them. Should we remove the
>>> listeners via omission? For example, removing listener1 might be:
>>>
>>> alter region --name=data --cache-listener='my.package.ListenerTypeB'
>>>
>>>
>>> By only listing the listeners I want...either to keep and/or to add,
>>> listener1 which is a ListenerTypeA, would be removed.
>>>
>>>
>>>
>>>
>>>
>>>> On Tue, Dec 20, 2016 at 2:11 PM, Kevin Duling <kdul...@pivotal.io> wrote:
>>>>
>>>> I'm looking at GEODE-2236
>>>> <https://issues.apache.org/jira/browse/GEODE-2236> and protecting
>>> against
>>>> the NPE is trivial. But the question is, what is the right way to do
>>>> this? What is the syntax people would expect to use?
>>>>
>>>>
>>>> What if there are multiple listeners and you wanted to delete one or more
>>>> of them?
>
