Bug 84533 Refactoring does not do anything...
Build: I-20050202 1. Create a new Hello world plugin project. Call it 'com.example.xyz' and accept all defaults. 2. Close the manifest editor for the newly created plugin.xml to take PDE out of the equation. 3. Open the plugin.xml in a plain text editor. 4. Right-click on the 'com.example.xyz' project and choose to rename it to 'com.example.xyz.bla' with textual matches in plugin.xml files. 5. In the preview, uncheck the 'plugin.xml - com.example.xyz). All its children are now unchecked 6. Check the second match in the plugin.xml file only (ie. the one for the 'class' attribute. 7. click OK. NOTHING HAPPENS!
org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/ChangeElement.java
*/
	public ChangeElement(ChangeElement parent) {
		fParent= parent;
	}
	/**
	 * Returns the change element's parent.
	 * 
	 * @return the change element's parent
	 */
	public ChangeElement getParent() {
		return fParent;
	}
	
	/**
	 * Returns the viewer descriptor used to present a preview of this change element
	 * 
	 * @return the viewer suitable to present a preview of this change or
	 *  <code>null</code> if no previewer is configured.
	 * 
	 * @throws CoreException if an error occurred while creating the descriptor
	 */
	public abstract ChangePreviewViewerDescriptor getChangePreviewViewerDescriptor() throws CoreException;
	
	public abstract void feedInput(IChangePreviewViewer viewer) throws CoreException;
	
	/**
	 * Returns the change directly associated with this change element or <code
	 * null</code> if the element isn't associated with a change.
	 * 
	 * @return the change or <code>null</code>