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

• US 5,848,246 A
• Filed: 07/01/1996
• Issued: 12/08/1998
• 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): Swann, Tod R.
• Assistant Examiner(s): PEIKARI, BEHZAD
• Application Number:
  US08/675,233
• Time in Patent Office: 890 Days
• Field of Search: 395/200.01, 395/200.03, 395/200.09, 395/200.13, 395/610, 395/200.02, 395/200.3, 395/200.31, 395/200.32, 395/200.33, 395/200.47 , 395/200.48, 395/200.62, 395/200.63, 395/200.57, 395/200.58
• US Class Current: 709/228
• CPC Class Codes: G06F 2209/5018 Thread allocation
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: G06F 9/541 via adapters, e.g. between incompatible applications
• CPC Class Codes: G06F 9/544 Buffers; Shared memory; Pipes

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 session manager is utilized to manage the initiation of a plurality of network sessions.

Claims

1. A server for a distributed system, comprising:

(a) a plurality of client computers;

(b) a plurality of server computers;

(c) a network connecting the plurality of client computers to the plurality of server computers;

(d) an execution framework code segment configured to couple the plurality of server computers and the plurality of client computers via the network, comprising;

(1) a session manager in a server computer for responding to a client computer contacting the server computer by selecting a particular client code segment from a plurality of client computer code segments resident on the server computer, and transmitting the particular client code segment over the network to the client computer contacting the server to initiate coupling; and

(2) the session manager in the server computer selecting a particular server computer code segment from a plurality of server computer code segments resident on the server and executing the server computer code segment resident on the server in response to initiation of coupling via the network with the client computer utilizing the transmitted client code segment for communicating via a particular communication protocol.

2. The server for a distributed system as recited in claim 1, including a plurality of definitions that define the plurality of client computer code segments and each of the plurality of definitions defining how to associate the plurality of client computer code segments and the plurality of server computer code segments into applications in response to a request by the client computer.

3. The server for a distributed system as recited in claim 1, in which the server computer code segment includes at least one instance of a communication library code segment configured to couple an associated one of the plurality of server computer code segments to the execution framework code segment, and the client computer includes at least one instance of a communication library code segment configured to couple an associated one of the plurality of client code segments transmitted to the client computer to the execution framework code segment.

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. The server for a distributed system as recited in claim 7, wherein the initial communication is via the internet and subsequent communications utilize a network protocol defined in the initial communication.

9. 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 plurality of server computers and the plurality of client computers via the network, comprising;

(1) a session manager in a server computer for responding to a client computer contacting the server computer by selecting a particular client code segment from a plurality of client computer code segments resident on the server computer, and transmitting the particular client code segment over the network to the client computer contacting the server to initiate coupling; and

(2) the session manager in the server computer selecting a particular server computer code segment from a plurality of server computer code segments resident on the server and executing the server computer code segment resident on the server in response to initiation of coupling via the network with the client computer utilizing the transmitted client code segment for communicating via a particular communication protocol.

10. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 9, including the step of creating a plurality of definitions that define the plurality of client computer code segments and each of the plurality of definitions defining how to associate the plurality of client computer code segments and the plurality of server computer code segments into applications in response to a request by the client computer.

11. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 9, in which the server computer code segment includes at least one instance of a communication library code segment configured to couple an associated one of the plurality of server computer code segments to the execution framework code segment, and the client computer includes at least one instance of a communication library code segment configured to couple an associated one of the plurality of client code segments transmitted to the client computer to the execution framework code segment.

12. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 9, wherein a web connection facilitates communication from the client computer to the server computer.

13. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 9, including the step of invoking 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.

14. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 9, including the step of authenticating an initial request from a client computer before downloading a client code segment and initiating secure communication.

15. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 12, wherein the web is the Internet.

16. The method for distributing computing between a server computer system and a client computer system coupled by a network as recited in claim 9, wherein the initial communication is via the internet and subsequent communications utilize a network protocol defined in the initial communication.

17. A computer program embodied on a computer-readable medium for enabling a distributed computer system, comprising an execution framework code segment configured to couple the server computer and the client computer via the network, comprising downloading an execution framework code segment configured to couple the plurality of server computers and the plurality of client computers via the network, including:

(1) a code segment for enabling a session manager in a server computer for responding to a client computer contacting the server computer by selecting a particular client code segment from a plurality of client computer code segments resident on the server computer, and transmitting the particular client code segment over the network to the client computer contacting the server to initiate coupling; and

(2) the code segement in the session manager in the server computer selecting a particular server computer code segment from a plurality of server computer code segments resident on the server and executing the server computer code segment resident on the server in response to initiation of coupling via the network with the client computer utilizing the transmitted client code segment for communicating via a particular communication protocol.

18. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 17, including a plurality of definitions that define the plurality of client computer code segments and each of the plurality of definitions defining how to associate the plurality of client computer code segments and the plurality of server computer code segments into applications in response to a request by the client computer.

19. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 17, in which the server computer code segment includes at least one instance of a communication library code segment configured to couple an associated one of the plurality of server computer code segments to the execution framework code segment, and the client computer includes at least one instance of a communication library code segment configured to couple an associated one of the plurality of client code segments transmitted to the client computer to the execution framework code segment.

20. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 17, wherein a web connection facilitates communication from the client computer to the server computer.

21. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 17, including the step of invoking 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.

22. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 17, including the step of authenticating an initial request from a client computer before downloading a client code segment and initiating secure communication.

23. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 20, wherein the web is the Internet.

24. The computer program embodied on a computer-readable medium for enabling a distributed computer system as recited in claim 17, wherein the initial communication is via the internet and subsequent communications utilize a network protocol defined in the initial communication.