Bug 240363 [Viewers] [open type] Problem with Open Type filtering
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTableViewer.java
*
	 * @since 3.3
	 */
	protected abstract void doShowSelection();
	/**
	 * Selects the items at the given zero-relative indices in the receiver. The
	 * current selection is cleared before the new items are selected.
	 * <p>
	 * Indices that are out of range and duplicate indices are ignored. If the
	 * receiver is single-select and multiple indices are specified, then all
	 * indices are ignored.
	 * </p>
	 *
	 * @param indices
	 *            the indices of the items to select
	 *
	 * @exception IllegalArgumentException -
	 *                if the array of indices is null
	 *
	 * @since 3.3
	 */
	protected abstract void doSetSelection(int[] indices);
	/**
	 * Clears the item at the given zero-relative index in the receiver. The
	 * text, icon and other attributes of the item are set to the default value.
	 * If the table was created with the <code>SWT.VIRTUAL</code> style, these
	 * attributes are requested again as needed.
	 *
	 * @param index
	 *            the index of the item to clear