Object-oriented system, method and article of manufacture (#12) for a client-server state machine framework

• US 5,987,245 A
• Filed: 07/01/1996
• Issued: 11/16/1999
• Est. Priority Date: 07/01/1996
• Status: Expired due to Term

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Gish, Sheri L.
• Primary Examiner(s): Dinh, Dung C.
• Application Number:
  US08/675,267
• Time in Patent Office: 1,233 Days
• Field of Search: 395/680, 395/682, 395/683, 395/685, 395/200.32, 395/200.33, 395/200.31
• US Class Current: 719/310
• CPC Class Codes: G06F 8/24 Object-oriented
• CPC Class Codes: G06F 8/38 for implementing user interfaces
• CPC Class Codes: G06F 9/54 Interprogram communication

Abstract

An interprise computing manager in which an application is composed of a client (front end) program which communicates utilizing a network with a server (back end) program. The client and server programs are loosely coupled and exchange information using the network. The client program is composed of a User Interface (UI) and an object-oriented framework (Presentation Engine (PE) framework). The UI exchanges data messages with the framework. The framework is designed to handle two types of messages: (1) from the UI, and (2) from the server (back end) program via the network. The framework includes a component, the mediator which manages messages coming into and going out of the framework. The system includes software for a client computer, a server computer and a network for connecting the client computer to the server computer which utilize an execution framework code segment configured to couple the server computer and the client computer via the network, by a plurality of client computer code segments resident on the server, each for transmission over the network to a client computer to initiate coupling; and a plurality of server computer code segments resident on the server which execute on the server in response to initiation of coupling via the network with a particular client utilizing the transmitted client computer code segment for communicating via a particular communication protocol.

Claims

1. A presentation engine for a distributed computer system, comprising:

(a) a client computer code segment resident on a client computer node and including an user interface;

(b) a server computer code segment resident on a server computer node coupled to the client computer node; and

(c) an execution framework code segment configured to couple the client code segment and the server code segment to event driven message transfer between the client computer code segment and the server computer code segment;

the client computer code segment, including;

(1) a user-extendible user interface adaptor component coupling the user interface component to a mediator coupled between the user-extendible user interface adaptor and the execution framework code segment.

2. The distributed computer system as recited in claim 1, in which the execution framework code segment is layered over a communication protocol.

3. The distributed computer system as recited in claim 2, in which the communication protocol comprises the Transmission Control Protocol/Internet Protocol (TCP/IP).

4. The server for a distributed system as recited in claim 1, including a web connection which facilitates communication from the client computer to the server computer.

5. The server for a distributed system as recited in claim 1, including a communication protocol corresponding to the client code segment and the server code segment which is supported by a communication library on the client computer and the server computer.

6. The server for a distributed system as recited in claim 1, including a code segment which authenticates an initial request from a client computer before downloading a client code segment and initiating secure communication.

7. The server for a distributed system as recited in claim 4, wherein the web is the Internet.

8. A method for distributing computing between a server computer system and a client computer system coupled by a network, comprising the steps of:

(a) coupling the server computer and the client computer through the network utilizing an execution framework code segment, comprising;

(1) a plurality of client computer code segments resident on the server, each for transmission over the network to a client computer to initiate coupling;

(2) a plurality of server computer code segments resident on the server which execute on the server in response to initiation of coupling via the network with a particular client utilizing the transmitted client computer code segment for communicating via a particular communication protocol; and

(b) receiving event driven messages at the client computer code segment and the server computer code segment;

the client computer code segment, including a user-extendible user interface adaptor component coupling the user interface component to a mediator coupled between the user-extendible user interface adaptor and the execution framework code segment for transfer and display of messages.

9. The method as recited in claim 8, including the step of layering the execution framework code segment over a communication protocol.

10. The method as recited in claim 9, in which the communication protocol comprises the Transmission Control Protocol/Internet Protocol (TCP/IP).

11. The method as recited in claim 8, including the step of facilitating communication via a web connection from the client computer to the server computer.

12. The method as recited in claim 8, including the step of initiating a communication protocol corresponding to the client code segment and the server code segment which is supported by a communication library on the client computer and the server computer.

13. The method as recited in claim 8, including the step of authenticating an initial request from a client computer before downloading a client code segment and initiating secure communication.

14. The method as recited in claim 11, wherein the web is the Internet.

15. A computer program embodied on a computer-readable medium for enabling a distributed computer system, comprising:

(a) a client computer code segment resident on a client computer node and including an user interface;

(b) a server computer code segment resident on a server computer node coupled to the client computer node; and

(c) an execution framework code segment configured to couple the client code segment and the server code segment to event driven message transfer between the client computer code segment and the server computer code segment;

the client computer code segment, including;

(1) a user-extendible user interface adaptor component coupling the user interface component to a mediator coupled between the user-extendible user interface adaptor and the execution framework code segment.

16. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 15, in which the execution framework code segment is layered over a communication protocol.

17. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 16, in which the communication protocol comprises the Transmission Control Protocol/Internet Protocol (TCP/IP).

18. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 15, including a web connection which facilitates communication from the client computer to the server computer.

19. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 15, including a communication protocol corresponding to the client code segment and the server code segment which is supported by a communication library on the client computer and the server computer.

20. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 15, including a code segment which authenticates an initial request from a client computer before downloading a client code segment and initiating secure communication.

21. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 19, wherein the web is the Internet.