Object-oriented paradigm for accessing transactional requests by modeling I/O message queues into an object framework

• US 6,192,369 B1
• Filed: 06/15/1998
• Issued: 02/20/2001
• Est. Priority Date: 06/15/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Liao, Jenny Y., Ho, Shyh-Mei Fang, Doan, Bach Dinh
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): LE, UYEN T
• Application Number:
  US09/097,376
• Time in Patent Office: 981 Days
• Field of Search: 707/103, 707/1, 707/100, 709/313, 709/314, 709/319, 709/238, 709/316, 709/315
• US Class Current: 1/1
• CPC Class Codes: G06F 16/289 Object oriented databases
• CPC Class Codes: G06F 16/9024 Graphs; Linked lists G06F16/9027 takes precedence
• CPC Class Codes: G06F 9/466 Transaction processing
• CPC Class Codes: G06F 9/546 Message passing systems or structures, e.g. queues
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99933 Query processing, i.e. searching
• CPC Class Codes: Y10S 707/99944 Object-oriented database structure

Abstract

A method, apparatus, and article of manufacture for accessing a hierarchical database. The database is modeled into an objects framework, wherein the objects framework corresponds to application views, data structures, and data defined and stored in the database. The database is then accessed through the objects framework. A class definition tool generates class definitions for objects that encapsulate or wrapper the data retrieved from the database.

Claims

1. A computer-implemented method for accessing a database, comprising:

(a) modeling a database system into an objects framework, wherein the objects framework corresponds to one or more application views, database definitions, and data defined and stored in the database system, and one or more message queues for communicating with the database system, and the modeling step further comprises modeling message queue processing in a transaction system using message queue objects; and

(b) processing transactions from an application program through the objects framework using the message queue objects.

2. The method of claim 1, wherein an originating message queue object is different from a destination message queue object.

3. The method of claim 1, wherein the modeling step (a) further comprises modeling both conversational and non-conversational message queue processing in a transaction system using the message queue objects.

4. The method of claim 1, wherein the modeling step (a) further comprises modeling input and output message queues in a transaction system as the message queue objects.

5. The method of claim 1, wherein the message queue objects include one or more methods that allow the application program to retrieve a message from the input message queue.

6. The method of claim 1, wherein the message queue objects include one or more methods that allow the application program to send a message to the output message queue.

7. The method of claim 1, further comprising constructing message request buffers and message response buffers using the message queue objects.

8. The method of claim 1, wherein the message queue objects support one or more message segments.

9. The method of claim 1, wherein an originating message queue object is a destination message queue object.

10. A computerized apparatus for accessing a database, comprising:

(a) means for modeling a database system into an objects framework, wherein the objects framework corresponds to one or more application views, database definitions, and data defined and stored in the database system, and one or more message queues for communicating with the database system, and the means for modeling further comprises means for modeling message queue processing in a transaction system using message queue objects; and

(b) means for processing transactions from an application program through the objects framework using the message queue objects.

11. The apparatus of claim 10, wherein an originating message queue object is different from a destination message queue object.

14. The apparatus of claim 10, wherein the means for modeling further comprises means for modeling both conversational and non-conversational message queue processing in a transaction system using the message queue objects.

15. The apparatus of claim 10, wherein the means for modeling further comprises means for modeling input and output message queues in a transaction system as the message queue objects.

16. The apparatus of claim 10, wherein the message queue objects include one or more methods that allow the application program to retrieve a message from the input message queue.

17. The apparatus of claim 10, wherein the message queue objects include one or more methods that allow the application program to send a message to the output message queue.

18. The apparatus of claim 10, further comprising means for constructing message request buffers and message response buffers using the message queue objects.

19. The apparatus of claim 10, wherein the message queue objects support one or more message segments.

20. The apparatus of claim 11, wherein an originating message queue object is a destination message queue object.

12. A program storage medium readable by a computer, the medium embodying one or more instructions executable by the computer to perform method steps for accessing a database, the method comprising:

(a) modeling a database system into an objects framework, wherein the objects framework corresponds to one or more application views, database definitions, and data defined and stored in the database system, and one or more message queues for communicating with the database system, and the modeling step further comprises modeling message queue processing in a transaction system using message queue objects; and

(b) processing transactions from an application program through the objects framework using the message queue objects.

13. The program storage medium of claim 12, wherein the modeling step (a) further comprises modeling both conversational and non-conversational message queue processing in a transaction system using the message queue objects.

21. The program storage medium of claim 12, wherein the modeling step (a) further comprises modeling input and output message queues in a transaction system as the message queue objects.

22. The program storage medium of claim 12, wherein the message queue objects include one or more methods that allow the application program to retrieve a message from the input message queue.

23. The program storage medium of claim 12, wherein the message queue objects include one or more methods that allow the application program to send a message to the output message queue.

24. The program storage medium of claim 12, further comprising constructing message request buffers and message response buffers using the message queue objects.

25. The program storage medium of claim 12, wherein the message queue objects support one or more message segments.

26. The program storage medium of claim 12, wherein an originating message queue object is a destination message queue object.

27. The program storage medium of claim 12, wherein an originating message queue object is different from a destination message queue object.