Bug 89031 [Undo/Redo] IWorkbench#getOperationSupport() marked experimental
IWorkbench#getOperationSupport() marked experimental
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/OperationHistoryEvent.java
*/
	public static final int DONE = 0x0008;
	
	
	/**
	 * OPERATION_ADDED indicates an operation was added to the history.
	 * Listeners typically use this to add their context to a new operation as
	 * appropriate or otherwise record the operation.
	 */
	public static final int OPERATION_ADDED = 0x0010;
	/**
	 * OPERATION_CHANGED indicates that an operation has changed in
	 * some way since it was added to the operations history.
	 */
	public static final int OPERATION_CHANGED = 0x0020;
	/**
	 * OPERATION_NOT_OK indicates that an operation was attempted and not
	 * successful. Listeners typically use this when they have prepared for an
	 * execute, undo, or redo, and need to know that the operation did not
	 * successfully complete. For example, listeners that turn redraw off before
	 * an operation is undone would turn redraw on when the operation completes,
	 * or when this notification is received, since there will be no
	 * notification of the completion.
	 */
	public static final int OPERATION_NOT_OK = 0x0040;
	/**
	 * OPERATION_REMOVED indicates an operation was removed from the history.
	 * Listeners typically remove any record of the operation that they may have
	 * kept in their own state.
	 */