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    • 11. 发明授权
    • Dynamic command sets in a computer messaging system in a method, system and program
    • 动态命令集在计算机消息系统中的方法,系统和程序中
    • US07085810B1
    • 2006-08-01
    • US09583519
    • 2000-05-31
    • Daniel Otto Becker
    • Daniel Otto Becker
    • G06F15/16
    • H04L67/34
    • Rather than using a command interpreter or dispatch table, commands within a messaging system are given a name which matches the filename for the class file implementing the command. A command name, or command number, may be subsequently passed to a server in a messaging system and used to dynamically load and instantiate a message command by loading a class of the same name. Additional command classes may therefore be added or deleted, at runtime, from client or server code without halting the application. An error condition is signaled when the command name is unrecognized, when the command code is unavailable or when there are problems instantiating an instance of the command class. Once the class code is loaded, a new instance of the class is created and the command object may be utilized.
    • 消息传递系统中的命令不是使用命令解释器或分派表,而是与实现命令的类文件的文件名相匹配。 命令名称或命令编号可以随后传递到消息系统中的服务器,并用于通过加载相同名称的类来动态加载和实例化消息命令。 因此,可以在运行时从客户端或服务器代码添加或删除其他命令类,而不会停止应用程序。 当命令名称无法识别时,当命令代码不可用时或在实例化命令类的实例时出现问题时,会发出错误条件。 一旦加载了类代码,就会创建一个类的新实例,并且可以使用命令对象。