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Friday September 15, 2006

META-INF/services Browser for NBM project

Together with Jaroslav Tulach we are developing META-INF/services browser for NetBeans module project. In short META-INF services node was added to Important files node:

The META-INF services node has two children nodes:

<Exported Services> - services exported by module.
<All Services> - services from NetBeans platform and all modules in module suite.

The Service can be added from pop-up menu of Service type by clicking to Add New Service item. It shows Add Service dialog:

Full class name of Service is typed to Class name text field. The class name of new service can be also selected in packages view. The package view will be shown after clicking on Browse button:

Already installed service can be masked/unmasked from default Lookup by Delete menu item on service instance in All Services view.

Details about this feature are in issue #66606. We want to integrate it to Milestone 4 NetBeans build.

Posted by xzajo ( Sep 15 2006, 01:09:55 PM CEST ) Permalink Comments [12]

Comments:

Nice. Will it also put service implementations in the layer file if, for example, you're using a static factory method for construction?

Posted by Rich Unger on September 15, 2006 at 10:53 PM CEST #

Nice. Add Service Class is even nicer. Aside from the Browse... button, what is needed is an Add Class button. Clicking on this should show a New Class wizard with proper values such as extends or implements clauses filled in for you. Appropriate imports and module dependencies could also be added. For example check out how the Eclipse PDE deals with any extension attributes that have a Java Class or Interface type here: http://help.eclipse.org/help30/topic/org.eclipse.pde.doc.user/guide/pde_manifest_extensions.htm

Posted by Sandip on September 16, 2006 at 07:33 PM CEST #

As for exporting, there is also "Export as a Service" module on daily update center of trunk builds. It is based on JMI java interfaces, which are about to go away, and that is why it is for now going to stay as separate module. However feel free to download it and try it. It is very nice complement to this browser module.

Posted by Jaroslav Tulach on September 17, 2006 at 10:59 AM CEST #

Answer to Rich:

It's only for META-INF/services. I don't think when will be improved support for registering objects to layer.xml. Jesse wants to rewrite layer view #72541. because there are problems with current implementation. It will be also nice to integrate registration instances from layer view (#67794).

. Answer to Sandip:

I agree with you user wants to create new class during registration and adding module dependency on classpath. I don't know if the service type is interface or class because apsupport/project module doesn't have jmi on classpath. It can be created empty class without extends and implements declaration...

I was also thinking about adding "Add Module Dependency" and "Remove Module Depency" on Service type node. It can be also added a annotation to icon service icon. The annotation will tell if the service type is on classpath of module. May be I'll implement it.

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