machinevisitor.java

来自「design pattern in java」· Java 代码 · 共 38 行

package com.oozinoz.machine;

/*
 * Copyright (c) 2001 Steven J. Metsker.
 * 
 * Steve Metsker makes no representations or warranties about
 * the fitness of this software for any particular purpose, 
 * including the implied warranty of merchantability.
 *
 * Please use this software as you wish with the sole
 * restriction that you may not claim that you wrote it.
 */
/**
 * This interface defines the type of object that machines 
 * and machine composites will accept. The Machine 
 * hierarchy classes call back a visiting object's visit() 
 * methods; In so doing they identify their type. 
 * Implementors of this interface can create algorithms that 
 * operate differently on different type of machine 
 * components. 
 *
 * @author Steven J. Metsker
 *
 */
public interface MachineVisitor {
/**
 * Visit a machine.
 *
 * @param Machine the machine to visit
 */
void visit(Machine m);
/**
 * Visit a machine composite.
 *
 * @param MachineComposite the machine composite to visit
 */
void visit(MachineComposite mc);
}