[wtp-dev] Using extension point to plug in to servlet wizard

[raccah@xxxxxxxxxxxx]

I'd like some help with an extension point/data model problem I'm facing:

I'm trying to use the 
org.eclipse.wst.common.frameworks.DataModelProviderExtension extension 
point in order to provide a subclass of 
org.eclipse.jst.j2ee.internal.web.operations.NewServletClassDataModelProvider

In the class comment of that class it says that you are able to subclass 
it and provide specific attributes for new servlet generation. 
Specifically, I am trying to tell it to use annotations (instead of 
deployment descriptors) for the case of my server as the target.

I tried this code in plugin.xml:
<extension 
point="org.eclipse.wst.common.frameworks.DataModelProviderExtension">
  <DataModelProvider
        class="mypackage.AnnotationServletClassDataModelProvider"
        id="mypackage.AnnotationServletClassDataModelProvider">
  </DataModelProvider>
</extension>

And, in mypackage.AnnotationServletClassDataModelProvider:
1) I provide a default constructor which only calls super, but allows me 
to set a breakpoint
2) I override public Object getDefaultProperty(String propertyName) to 
test for IAnnotationsDataModel.USE_ANNOTATIONS and, if it is the 
property, to check the target property for a facet with my server's facet.

When debugging, neither the constructor nor the override at stopped at.

I debugged a bit more and find that NewWebWizard's init calls 
getDataModel(), which calls 
DataModelFactory.createDataModel(getDefaultProvider()) which calls 
NewServletClassDataModelProvider's getDefaultProvider(), which returns 
new NewServletClassDataModelProvider();

So, how am I to plug in to this?


Thanks,
Rochelle