Bug 153993 [Viewers] Common Baseclass for Tree/TableEditorImpl
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TableViewer.java
*            the last position
	 */
	public void insert(Object element, int position) {
		tableViewerImpl.applyEditorValue();
		if (getComparator() != null || hasFilters()) {
			add(element);
			return;
		}
		if (position == -1) {
			position = table.getItemCount();
		}
		createItem(element, position);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.StructuredViewer#internalRefresh(java.lang.Object)
	 */
	protected void internalRefresh(Object element) {
		internalRefresh(element, true);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.StructuredViewer#internalRefresh(java.lang.Object,
	 *      boolean)
	 */
	protected void internalRefresh(Object element, boolean updateLabels) {
		tableViewerImpl.applyEditorValue();
		if (element == null || equals(element, getRoot())) {