Encrypted Chat Room 4_Class Specifications(8)

原创于 2005-03-23 07:58:00 发布 · 1k 阅读

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#class #server #attributes #interface #constructor #object

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博客介绍了ControlCentre和ControlPanel两个类。ControlCentre类负责客户端 - 服务器网络启动，提供添加新客户端接口；ControlPanel类也提供添加新客户端接口，包含处理添加新客户端事件并创建Client对象的操作。

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class ControlCentre
This class is responsible for start-up of the client-server network. It provides an interface for users to add new clients to the network.

attributes
server: Server
controlPanel: ControlPanel

operation specifications
+ ControlCentre( )
-- constructor: creates a Server object; creates the control panel interface for adding new clients.
pre: none
post: A Server object has been created and assigned to server.
A ControlPanel object has been created and assigned to controlPanel.

class ControlPanel
This class provides an interface for users to add new clients to the network.

attributes
server: Server
client: Client

operation specifications

+ ControlPanel(server: Server)
-- constructor
pre: server not null
post: self.server = server.
A control panel interface is displayed, containing a function to add new clients.

+ attachClient( )
-- handles the add new client event and creates a Client object.
pre: none
post: A new Client object has been created, and added to the server’s list of
currently connected clients.