Method and apparatus for creating executable code for object-oriented objects having finite state machine

• US 5,920,718 A
• Filed: 03/21/1997
• Issued: 07/06/1999
• Est. Priority Date: 03/21/1997
• Status: Expired due to Fees

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Wilke, Michael J., Uczekaj, Stephen A.
• Primary Examiner(s): Hafiz, Tariq R.
• Assistant Examiner(s): DAM, TUAN QUANG
• Application Number:
  US08/821,937
• Time in Patent Office: 837 Days
• Field of Search: 395/701, 395/702, 395/703, 707/101
• US Class Current: 717/109
• CPC Class Codes: G06F 8/30 Creation or generation of source code
• CPC Class Codes: G06F 9/45512 Command shells

Abstract

A graphical control system for automatically generating application program shell code in an object-oriented system. The graphical control system allows a user to easily enter object information and associated control information in a single graphical user interface. The system automatically generates application shell code according to the operating system environment in which the system is running and the user entered object and object control information. The invention eliminates the need to program in or edit control application code by hand for each object defined in the application. Also, the control code for each object is directly associated with the object during construction and therefore is created in the same desired location as that of the object data.

Claims

1. A method for automatically generating application program shell code for a predefined application in an object-oriented system, said system comprising a processor with an operating system running thereon, at least one user interface device, memory and a display device, said method comprising:

(a) assigning an object name, wherein the object name identifies an object operable in the predefined application;

(b) assigning at least one data name to the assigned object name according to predetermined requirements for the object;

(c) assigning a method name to the assigned object name according to predetermined requirements for the object;

(d) assigning control information to said assigned object name according to said predefined application, wherein said assigning control information includes;

(i) assigning at least one state name, wherein each state name identifies a distinct state of the object; and

(ii) assigning an object state transition, if more than one state is assigned; and

(e) generating application shell code according to the operating system and the assigned names and control information.

2. The method of claim 1, wherein said object state transition assigning comprises assigning a data condition and an action.

3. The method of claim 2, wherein said action comprises assigning a transition method name with at least one of a call function, signal function, or spawn function to the transition method name, or assigning a nullification function according to the predefined application.

4. The method of claim 1, wherein said generated application shell code is operable with other object-oriented systems via an object-oriented messaging system.

5. The method of claim 4, further comprising:

assigning a machine name to an assigned object name wherein said machine name identifies an object-oriented system connected to the object-oriented messaging system; and

assigning a server name to the assigned machine name.

6. The method of claim 5, wherein said server name identifies a server on the object-oriented system represented by said assigned machine name.

7. The method of claim 5, wherein said generated application shell code is operable in the assigned server.

8. An object-oriented system for automatically generating application shell code, said system comprising a processor with an operating system running thereon, at least one user interface device, memory and a display device, said system further comprising:

(a) a graphical interface tool, operating in the operating system and displayed on the display device, for creating object-oriented objects for use in a predefined application, wherein said graphical interface tool comprises;

(1) a first assigning means for assigning an object name;

(2) a second assigning means for assigning data names to the assigned object name according to predetermined requirements;

(3) a third assigning means for assigning method names to the assigned object name according to predetermined requirements; and

(4) a fourth assigning means for assigning control information to said assigned object name according to said predefined application, wherein said fourth assigning means of the graphical interface tool includes;

(i) means for assigning at least one state name, wherein each state name represents a distinct state of the object; and

(ii) a means for assigning an object state transition, if more than one state is assigned; and

(b) an automatic shell code generating tool, activated through said graphical interface tool and operating in the operating system, for generating application shell code according to the operating system and the assigned names and control information.

9. The system of claim 8, wherein an assigned object state transition comprises a data condition and an action.

10. The system of claim 9, wherein said action comprises at least one of a call function, signal function or spawn function of a transition method, or a nullification function.

11. The system of claim 8, wherein said system is connected to other object-oriented systems via an object-oriented messaging system.

12. The system of claim 11, wherein said graphical interface tool further comprises:

a fifth assigning means for assigning a machine name to an assigned object name, wherein said machine name represents an object-oriented system connected to the object-oriented messaging system; and

a sixth assigning means for assigning a server name to the assigned machine name.

13. The system of claim 12, wherein said generated application shell code is operable in the assigned server.

14. The system of claim 12, wherein said assigned server name identifies a server on the object-oriented system represented by said assigned machine name.

15. A computer-readable medium for automatically generating application shell code, said computer-readable medium operable with a processor with an operating system running thereon, at least one user interface device, memory and a display device, said computer-readable medium further comprising:

(a) a graphical interface tool, operable in the operating system and displayed on the display device, for creating object-oriented objects for use in a predefined application, wherein said graphical interface tool program comprises;

(1) a first assigning means for assigning an object name;

(2) a second assigning means for assigning data names to the assigned object name according to predetermined requirements;

(3) a third assigning means for assigning method names to the assigned object name according to predetermined requirements;

(4) a fourth assigning means for assigning control information to said assigned object name according to said predefined application, wherein said fourth assigning means of the graphical user interface tool includes;

(i) means for assigning at least one state name, wherein each state name represents a distinct state of the object; and

(ii) means for assigning an object state transition, if more than one state is assigned; and

(b) an automatic shell code generating tool, activated through said graphical interface tool and operable in the operating system, for generating application shell code according to the operating system and the assigned names and control information.

16. The computer-readable medium of claim 15, wherein an assigned object state transition comprises a data condition and an action.

17. The computer-readable medium of claim 16, wherein said action comprises at least one of a call function, signal function or spawn function of a transition method, or a nullification function.

18. The computer-readable medium of claim 15, wherein said computer-readable medium located in an object-oriented system is connectable to object-oriented systems via an object-oriented messaging system.

19. The computer-readable medium of claim 18, wherein said graphical interface tool further comprises:

a fifth assigning means for assigning the name of an object-oriented system connected to the object-oriented messaging system; and

a sixth assigning means for assigning a server name to the assigned object-oriented system name.

20. The computer-readable medium of claim 19, wherein said server name identifies a server on the object-oriented system represented by said assigned machine name.

21. The computer-readable medium of claim 19, wherein said generated application shell code is operable in the assigned server.

22. An object-oriented system for automatically generating application shell code, said system comprising a processor with an operating system running thereon, at least one user input device and a display device, further comprising:

a graphical interface tool, operating in the operating system, displayed on the display device, for entering object class information for an object-oriented object operating in a predefined application environment, wherein said object class information includes an object class name, data name, method name, action name, at least one state name, and at least one data condition with a resulting transition; and

an automatic shell code generating tool operating in the operating system for generating application shell code according to the object class information entered in the graphical interface tool.

23. The system of claim 22, wherein a transition is assigned at least one of the following commands:

a call to an action name;

a signal to an action name;

a spawn to an action name; and

a null according to predefined application environment.

24. The system of claim 22, wherein the application shell code generated by the automatic shell code generating tool is compatible with the operating system.

25. The system of claim 22, wherein said system is connected to other object-oriented systems via an object-oriented messaging system.

26. The system of claim 25, wherein said class information for an object class name further includes an object-oriented system name of an object-oriented system connected to the object-oriented messaging system and a server name.

27. The system of claim 26, wherein said server name is assigned to the object-oriented system of the included object-oriented system name.