if (fTreeViewer != null) { fTreeViewer.setInput(input); }
fTreeViewer.setInput(input);
	private void setTreeViewerInput() {		ChangeElement input= null;		if (fChange == null) {			input= null;		} else if (fChange instanceof CompositeChange) {			input= new DefaultChangeElement(null, fChange);		} else {			CompositeChange root= new CompositeChange("Dummy Change"); //$NON-NLS-1$			root.add(fChange);			input= new DefaultChangeElement(null, root);		}		if (fTreeViewer != null) {			fTreeViewer.setInput(input);		}	}