fChange= change;
fChange= change; if (fChange instanceof CompositeChange) { fTreeViewerInputChange= (CompositeChange)fChange; } else { fTreeViewerInputChange= new CompositeChange("Dummy Change"); fTreeViewerInputChange.add(fChange); }
	public void setChange(Change change) {		if (fChange == change)			return;				fChange= change;			setTreeViewerInput();	}