Method and apparatus for updating and synchronizing...

Details Method and apparatus for updating and synchronizing... Method and apparatus for updating and synchronizing...

2011-08-02

2011-08-02

Dollinger, Tonia L (Department: 2443)

Electrical computers and digital processing systems: multicomput

Distributed data processing

Client/server

C709S228000

Reexamination Certificate

active

07991834

ABSTRACT:
The present invention provides a method and apparatus for integrating applets running on a client with the application logic for applications running on a server. The mechanism of the present invention provides two significant advantages over the prior art: the synchronization of state, and the recognition of user actions in the browser including the invocation of the appropriate application logic in the server. Instead of using the FORM element available in HTML, individual active applets are available and may be created that obtain user input (e.g. a checkbox, textbox, button, etc.). A hidden applet called the Applet Group Controller is created which handles communication between the applets on the browser and the application logic on the server. The Applet Group Controller maintains an association with each applet that maintains the keys and values of any parameters and variables for the applet. In a preferred embodiment, upon the invocation of an event, the association instructs an Action Coordinator to invoke an action. The Action Coordinator obtains and transmits a list of all of the keys and their values to the server. The server invokes the appropriate application logic and transmits the keys and their values (as updated during the execution of the application logic) back to the Action Coordinator. The Action Coordinator then pushes the updated values out to the applets (through their Associations) at which time the browser's display is updated with the new values.

REFERENCES:
patent: 5500881 (1996-03-01), Levin et al.

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