Object-oriented system, method and article of manufacture for a client-server state machine in an interprise computing framework system

• US 6,038,590 A
• Filed: 07/01/1996
• Issued: 03/14/2000
• 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): PEIKARI, BEHZAD
• Application Number:
  US08/675,231
• Time in Patent Office: 1,352 Days
• Field of Search: 395/200.01, 395/200.03, 395/200.09, 395/200.13, 395/610, 395/200.02, 395/200.31, 395/200.32, 395/200.33, 395/200.47, 395/200.48 , 395/200.62, 395/200.63
• US Class Current: 709/203
• 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. A mediator state machine is utilized to parse various message types and route the messages to appropriate parts of the execution framework for further processing.

Claims

1. A server for a distributed system, comprising:

(a) a client computer;

(b) a server computer;

(c) a network connecting the client computer to the server computer; and

(d) an execution framework code segment configured to couple the server computer and the client computer via the network, 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, the client computer code segments comprising a user interface and an object-oriented presentation engine framework including a mediator state machine which receives a plurality of messages, determines which message should be handled by which part of the execution framework, and forwards the message for further processing to the execution framework; and

(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.

2. The server for a distributed system as recited in claim 1, including a user interface part of the client computer code segment which receives messages containing user interface information and translates the user interface information into display information.

3. The server for a distributed system as recited in claim 1, including a communication adaptor in the client computer code segment for communicating message types bound for external consumption to the network.

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) responding to a request from a client computer system to a server computer system;

(b) downloading an execution framework code segment configured to couple the server computer and the client computer via the network, 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, the client computer code segments comprising a user interface and an object-oriented presentation engine framework including a mediator state machine which receives a plurality of messages, determines which message should be handled by which part of the execution framework, and forwards the message for further processing to the execution framework; and

(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;

(c) receiving a plurality of messages in the mediator state machine in the client computer code segment;

(d) determining which messages should be handled by which part of the execution framework; and

(e) forwarding the messages for further processing to the execution framework.

9. A method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 8, including the step of invoking a user interface part of the client computer code segment which receives messages containing user interface information and translates the user interface information into display information.

10. A method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 8, including the step of invoking a communication adaptor in the client computer code segment for communicating message types bound for external consumption to the network.

11. A method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 8, including the step of invoking a web connection which facilitates communication from the client computer to the server computer.

12. A method for distributing computing between a server computer system and a client computer system coupled by a network 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. A method for distributing computing between a server computer system and a client computer system coupled by a network 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. A method for distributing computing between a server computer system and a client computer system coupled by a network 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 code segment for responding to a request from a client computer system to a server computer system; and

(b) an execution framework code segment configured to couple the server computer and the client computer via the network, 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, the client computer code segments comprising a user interface and an object-oriented presentation engine framework including a mediator state machine which receives a plurality of messages, determines which message should be handled by which part of the execution framework, and forwards the message for further processing to the execution framework;

(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.

16. A computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 15, including a user interface part of the client computer code segment which receives messages containing user interface information and translates the user interface information into display information.

17. A computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 15, including a communication adaptor in the client computer code segment for communicating message types bound for external consumption to the network.

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

19. A 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. A 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. A computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 18, wherein the web is the Internet.