ImplementationClass For Library?

[lamanmi]

Can the ImplementationClass tag be used with a Library? I am creating a STVI plugin that requires a JAR that has a background thread running while Sage is running. The JAR has no use except to support the STVI plugin.

It seems like to minimize clutter in the "Standard" plugin section, that this JAR should be more hidden out of the way in the "Library" section and just be pulled in as a dependancy, however, I do need the plugin capabilities to launch a start() routine when Sage is loading?

Thanks!!

[GKusnick]

Only Standard plugins can have an ImplementationClass.

But be aware that your Standard plugin will be instantiated just once, in the service, whereas the STVI component can exist in multiple instances, one per client. If that's what you intend, you'll need to manage synchronization between the multiple STVIs and the single background thread. Also note that there can be cases where the Standard plugin is enabled and started, but no instances of the STVI are running (e.g. because it's disabled, or because no compatible clients are running).

On the other hand if what you want is a background thread per client, then you should probably be doing a Fork() under ApplicationStarted in your STVI code rather than putting the thread in a separate JAR.