I don't want to be required to have a project that maps to a directory on the file system. The resources that I want to navigate/edit/manage don't exist on the file system either, they exist in my "app server". An example of this type of application could be a web site browser where you point your Eclipse project at a URL and what appears is a navigator view of the web site, a simple properties page, and an HTML editor. Another example might be if you have a J2EE application and your model is a bunch of EJBs you want access to from Eclipse.
Is this possible? If so, where is a good place to start? What objects within Eclipse should I be focusing on?