treeViewer.setInput(myEditorInput);
if (myModel != null) { treeViewer.setInput(new EOModelContainer(myModel)); }
  public void createControl(Composite _parent) {    super.createControl(_parent);    TreeViewer treeViewer = getTreeViewer();    treeViewer.setContentProvider(new EOModelOutlineContentProvider());    treeViewer.setLabelProvider(new EOModelOutlineLabelProvider());    treeViewer.setInput(myEditorInput);    treeViewer.expandToLevel(2);    setFocus();  }