guardedaction.java

来自「JAVA 所有包」· Java 代码 · 共 54 行

/*
 * @(#)GuardedAction.java	1.8 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.sun.corba.se.impl.orbutil.fsm ;

import com.sun.corba.se.spi.orbutil.fsm.Guard ;
import com.sun.corba.se.spi.orbutil.fsm.GuardBase ;
import com.sun.corba.se.spi.orbutil.fsm.Input ;
import com.sun.corba.se.spi.orbutil.fsm.Action ;
import com.sun.corba.se.spi.orbutil.fsm.State ;
import com.sun.corba.se.spi.orbutil.fsm.FSM ;

public class GuardedAction {
    private static Guard trueGuard = new GuardBase( "true" ) {
	public Guard.Result evaluate( FSM fsm, Input in ) 
	{
	    return Guard.Result.ENABLED ;
	}
    } ;

    private Guard guard ;
    private Action action ;
    private State nextState ;

    public GuardedAction( Action action, State nextState )
    {
	this.guard = trueGuard ;
	this.action = action ;
	this.nextState = nextState ;
    }

    public GuardedAction( Guard guard, Action action, State nextState )
    {
	this.guard = guard ;
	this.action = action ;
	this.nextState = nextState ;
    }

    public String toString() 
    {
	return "GuardedAction[action=" + action + " guard=" + guard +
	    " nextState=" + nextState + "]" ;
    }

    public Action getAction() { return action ; }
    public Guard getGuard() { return guard ; }
    public State getNextState() { return nextState ; }
}