Re: [webbeans-dev] CDI Quartz Extension and SE Example

wrote:

OK that's all implemented. The only slight differences are: - the properties file where the named scheduls are defined is called scheduler.properties and lives at the root of the classpath (optionally provided by the client application) - typesafe schedule binding types use the same mechanism as used by interceptor binding types to approximate inheritence, ie: @Scheduled("after.hours") @BindingType @Retention(RUNTIME) public @interface AfterHours {}; - the type for arbitrarily scheduled events is now called Event, not Schedule. I'm ready to check this in, just need to find some decent internet access (probably next week) so I can chat with Pete M and Dan, and then perform the checkin. Just have one question: Do you want the free-memory grapher example app which demostrates usage of this module? If so the I'm not sure how that will work since it is a SE/Swing app and this module will be going into the Seam modules sandbox. I think it will look a little weird for an SE app to depend on a Seam module. I guess I'm really wondering why the ties to Seam when this is a generally useful module? Cheers, Pete. On Thu, 25 Jun 2009 11:37:46 +0100, Peter Royle <howardmoon(a)screamingcoder.com&gt; wrote: > OK will do. I'm just implementing the stuff below and cleaning up a > bit first. Got a 24hr flight ahead of me so should be able to get a > lot done - if I'm not rendered a zombie :). > > > On 19/06/2009, at 7:12 PM, Pete Muir wrote: > >> How about putting this in Seam sandbox/modules for now? >> >> Talk to Dan Allen offline about the structure for the code (but >> basically it is like webbeans-extensions). >> >> Also, ping me and I'll sort out the SVN permissions. >> >> On 28 May 2009, at 22:45, Peter Royle wrote: >> >>> Hi, >>> >>> I know you're all really busy right now with the spec updates, but >>> I've got a new extension for possible inclusion into WebBeans, plus >>> a new example app for SE which uses it. >>> >>> == Quartz Extension == >>> >>> WebBeans-Quartz.zip >>> >>> The extension is a Quartz extension. It basically fires events >>> @Every Second, @Every Minute and @Every Hour, which can be observed >>> like so: >>> >>> public void updateSomething(@Observes @Every Hour hour) { // blah } >>> >>> On startup the extension first checks for the presence of observers >>> for each type of event and if there are no observers for a >>> particular type of event, no events will be scheduled. >>> >>> I intend to extend it by: >>> 1) introducing a way to define arbitrary schedules (in annotations >>> or in a properties file which is then referenced by name in an >>> annotation - which can then be made typesafe by subclassing the >>> annotation). Eg: >>> >>> package org.jboss.webbeans.extension.scheduler; >>> public @interface Scheduled { >>> String name(); >>> } >>> ----------- >>> public @interface AfterHours extends Scheduled{ >>> String name() default "afterHours"; >>> } >>> ----------- >>> schedule.properties: >>> afterHours=0 1 * * * * >>> ----------- >>> public void batchProcess(@Observes @AfterHours Schedule >>> schedule) { ... } >>> >>> 2) Adding whatever is necessary to make this usable in EE >>> environment. Any pointers? >>> >>> 3) Any other suggestions? >>> >>> == Memory Graph Example == >>> >>> MemoryGrapher.zip >>> >>> This is another Swing based example, which renders a graph of the >>> VM's free memory, updating every second and calling garbage >>> collection every minute using the above extension. It's a nice >>> concise example of how to bootstrap and shutdown SE, how to observe >>> events and how to use the injectable logger. Plus everyone loves a >>> pretty graph! >>> >>> I know there is some obvious clean up work required, and maybe >>> removing the name Quartz (?) - which I'm happy to do prior to >>> checking in. >>> >>> What do you think? >>> >>> >>> Pete. >>> >>> >>> >>> >>> _______________________________________________ >>> webbeans-dev mailing list >>> webbeans-dev(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/webbeans-dev >> > > _______________________________________________ > webbeans-dev mailing list > webbeans-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/webbeans-dev