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 doRemoveAll();
	/**
	 * Removes the items from the receiver's list at the given zero-relative
	 * indices.
	 *
	 * @param indices
	 *            the array of indices of the items
	 *
	 * @exception IllegalArgumentException -
	 *                if the array is null, or if any of the indices is not
	 *                between 0 and the number of elements in the list minus 1
	 *                (inclusive)
	 *
	 * @since 3.3
	 */
	protected abstract void doRemove(int[] indices);
	/**
	 * Shows the item. If the item is already showing in the receiver, this
	 * method simply returns. Otherwise, the items are scrolled until the item
	 * is visible.
	 *
	 * @param item
	 *            the item to be shown
	 *
	 * @exception IllegalArgumentException -
	 *                if the item is null
	 *
	 * @since 3.3