- /*
- * Action.java
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package com.sun.corba.se.spi.orbutil.fsm;
-
- /**
- * Description goes here
- *
- * @version @(#)Action.java 1.11 03/12/19
- * @author Ken Cavanaugh
- */
- public interface Action
- {
- /** Called by the state engine to perform an action
- * before a state transition takes place. The FSM is
- * passed so that the Action may set the next state in
- * cases when that is required. FSM and Input together
- * allow actions to be written that depend on the state and
- * input, but this should generally be avoided, as the
- * reason for a state machine in the first place is to cleanly
- * separate the actions and control flow. Note that an
- * action should complete in a timely manner. If the state machine
- * is used for concurrency control with multiple threads, the
- * action must not allow multiple threads to run simultaneously
- * in the state machine, as the state could be corrupted.
- * Any exception thrown by the Action for the transition
- * will be propagated to doIt.
- * @param FSM fsm is the state machine causing this action.
- * @param Input in is the input that caused the transition.
- */
- public void doIt( FSM fsm, Input in ) ;
- }
-
- // end of Action.java
-