[news.eclipse.tools] how do I add a listener to the default java editor

[rpenner@xxxxxxxxxxx (Reagan Penner)]

Hello, I am trying to watch for changes occuring in my default java editor
and am having some trouble figuring out how to add a listener and what
type of listener to add. I have the following code which will give me the
handle to the current active
org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor. Where abouts
can I hook into an IEditorPart to be notified of text level changes?

IEditorPart e = TemplatePlugin.getActiveEditor();
IContentOutlinePage outlinePage = (IContentOutlinePage)
e.getAdapter(IContentOutlinePage.class);
if (outlinePage != null) {
  // editor wishes to contribute outlinePage to content outline view
  System.out.println("the current selection is:
"+outlinePage.getSelection());
}

thanks in advance ........ Reagan