Add Capabilities to an Object Dynamically

• Packages:
  • Mostly in the package javax.microedition.io
  • Some connections are in optional packages
• States:
  • Setup
  • Connected
  • Closed

• btltcap for L2CAPConnection (JSR82)
• datagram for UDPDatagramConnection (MIDP2.0)
• file for FileConnection (JSR75)
• http for HttpConnection (MIDP1.0)
• https for HttpsConnection (MIDP2.0)
• sms for MessageConnection (JSR120)
• socket for SocketConnection (MIDP2.0)
• serversocket for ServerSocketConnection (MIDP2.0)

  SocketConnection c = (SocketConnection)Connector.Open("socket://cs.jmu.edu:8120");
  

  UDPDatagramConnection c = (IDPDatagramConnection)Connector.Open("datagram://cs.jmu.edu:8120");
  

  HttpConnection c = (HttpConnection)Connector.Open("http://www.jmu.edu");
  

  FileConnection c = (FileConnection)Connector.Open("file://test.txt");