Hi, I ended up making listeners deployed from assembly.xml and can include configuration from config.xml like blocks. Any objections?
On Fri, 21 Sep 2001 01:43, Peter Donald wrote: > Hi, > > I have committed partial support for Applications to add in BlockListeners > that get notified when blocks are added/removed from application. Currently > you can't actually use it as the assembly descriptor format needs to be > expanded to allow applications to add in listeners. > > The BlockEvent contains information including > * block name > * block info object > * actual block instance > > The reason for adding this listener to the Phoenix API is to allow the > following scenario. Say we have a listener that does the following. Every > time a block is added it searches the services the block exports and looks > for a service that extends "WebService" interface. If it finds such a > service exported by a block and it *also* finds another block that exports > WebServices (like Pauls recent Soapification efforts that export SOAP > WebServices) then it will register all the WebService objects with the > exporter. > > So thus to export a Block as a web service you just have to implement an > interface that extends WebService, add this listener to application and ... > voila` ! It gets exported. The equivelent could be implemented for JMX, > RMI, JNDI or any other passive application-wide service. This will > hopefully make it much easier to add management into Avalon and we can do > it in Application rather than Kernel space - yay! > > Hopefully this will solve all the issues of cooperation between "peer" > blocks that I have talked about in the past. So what do you think ? > > Open Questions: > * Do you like it? > * Should Listeners be Configurable? > * Where/how should we setup listeners for deployment? (I am thinking > assembly.xml at this stage) > * Is there any other information that may potentially be needed by > listeners? * Is there any other events that we should have listeners for? > * anything else? > > Okay _ I think I have hacked enough for my day off - nite ;) -- Cheers, Pete *------------------------------------------------------* | "Common sense is the collection of prejudices | | acquired by age 18. " -Albert Einstein | *------------------------------------------------------* --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
