Bug 153993 [Viewers] Common Baseclass for Tree/TableEditorImpl
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TableViewer.java
columnCount = 1;
			
			
			for (int column = 0; column < columnCount || column == 0; column++) {
				ViewerColumn columnViewer = getViewerColumn(column);
				columnViewer.refresh(updateCell(getViewerRowFromItem(item),
						column));
				
				
				if (item.isDisposed()) {
					unmapElement(element, item);
					return;
				}
			}
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ColumnViewer#getColumnViewerOwner(int)
	 */
	protected Widget getColumnViewerOwner(int columnIndex) {
		if (columnIndex < 0 || ( columnIndex > 0 && columnIndex >= getTable().getColumnCount() ) ) {
			return null;
		}
		if (getTable().getColumnCount() == 0)
			return getTable();
		return getTable().getColumn(columnIndex);
	}
	/**