Hey,
The refactoring mentioned in the Envisage thread is now committed.
Application instantiation is divided into
assembler->model->instance->activate.
This makes it possible to run Envisage on the model instead of the
instance. Current Envisage sample startup code now looks like this:
Energy4Java energy4Java = new Energy4Java();
ApplicationModelSPI application = energy4Java.newApplicationModel( new
SchoolAssembler());
new Envisage().run( application );
---
No instantiation, and no activation required.
If you instantiate it, then you have an opportunity to set extra
metainfo (such as external service instances) before activating the
application:
Energy4Java energy4Java = new Energy4Java();
ApplicationSPI application = energy4Java.newApplication(new
MyApplicationAssembler());
application.metaInfo().set(new SomeService());
application.activate();
---
This also should make it easier to make the model serializable, so it
can be persisted (thus making it possible to skip the assembler->model
phase on startup). I started working on it but got stuck on properties
which right now holds the constraints instance. This should be fixable
though.
All in all, a rather nifty refactoring :-)
/Rickard
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