Matlab命令模式

命令模式(Command)將命令封裝爲對象，實現命令發送者和命令接收者的解耦。線程池、MVC框架用到了命令模式，本文根據如下類圖，用matlab實現命令模式。

 

Invoker.m (傳遞命令對象Invoker：持有命令對象，要求命令對象執行請求)

classdef Invoker < handle
    properties
        command
    end
    methods
        function setOrder(obj,command)
            obj.command = command;
        end
        function execute(obj)
           obj.command.execute();
        end
    end
end

Command.m (抽象命令接口Command：定義命令的接口，聲明執行的方法)

classdef Command < handle
    methods(Abstract)
        execute(obj);
    end
end

ConcreteCommand.m (具體的命令對象ConcreteCommand：持有具體的接受者對象，完成具體的具體的命令)

classdef ConcreteCommand < Command
    properties
        receiver
    end
    methods
        function obj = ConcreteCommand(receiver)
           obj.receiver = receiver;
        end        
        function execute(obj)
            obj.receiver.execute();
        end
    end
end

Receiver.m (接受者對象Receiver：接受者對象，真正執行命令的對象)

classdef Receiver < handle
    methods
        function execute(~)
           disp("Receiver execute");
        end
    end
end

test.m

r = Receiver();
c = ConcreteCommand(r);
i = Invoker();
i.setOrder(c);
i.execute();

參考資料：

https://blog.csdn.net/wsh622827/article/details/4759368

http://www.javashuo.com/article/p-wgsgntst-gv.html