+1 for remove by specifying only the ones you want to keep:
$ alter region --name=data --cache-listener="" will remove all the cache
listeners
On Tue, 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?
> > >
> > >
> >
>
--
Cheers
Jinmei
