System and method for implementing proxy objects in a visual application builder framework

• US 6,038,395 A
• Filed: 12/16/1994
• Issued: 03/14/2000
• Est. Priority Date: 12/16/1994
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Llames, Rene Lim, Fountain, James William Jr., Chow, ChungHen
• Primary Examiner(s): Trammell, James P.
• Assistant Examiner(s): Nguyen, Cuong H.
• Application Number:
  US08/357,838
• Time in Patent Office: 1,915 Days
• Field of Search: 395/701, 395/685, 709/305, 345/967
• US Class Current: 717/105
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548

Abstract

An object model-based visual builder is provided which includes proxy objects at build time, each corresponding to a target object at runtime. Each such proxy object has associated therewith several items of information, including the class of the target object corresponding to the proxy object, presentation information, properties and how they are mapped to IDL attributes and operations, events available on the target object, and operations supported by the target object. A portion of such information is stored in an Interface Repository, such as the System Object Model (SOM) Interface Repository, in easily changeable form, with the necessary knowledge for retrieving such information from the Interface Repository being contained in the proxy object itself. The information stored in the Interface Repository may be changed without altering or recompiling the source code which implements the proxy object itself. Interface declarations for proxy objects are provided in corresponding IDL files stored in the Interface Repository. Implementation statements in the files permit modifiers which encode the easily editable portions of the proxy object information.

Claims

1. A computerized method for supporting a proxy object comprising:

storing a first portion of information corresponding to said proxy object in said proxy object; and

storing a second portion of said information comprising visual programmable interface information viewable at build time for supporting visual programmability of said proxy object at said build time, said second portion at least partially defining said proxy object in an interface repository; and

executing a visual builder function invoking said second portion of said information at said build time.

2. The method of claim 1 wherein said first portion enables retrieval of said second portion from said interface repository during said build time.

3. The method of claim 2 wherein said second portion of said information is imbedded in an IDL modifier of the class of said proxy object.

4. The method of claim 1 wherein said interface repository is a system object model interface repository.

5. The method of claim 4 wherein said first portion of said information is hardcoded.

6. The method of claim 5 wherein said second portion of said information is editable text.

7. The method of claim 6 wherein said first portion defines a metaclass of said proxy object.

8. The method of claim 7 wherein said second portion of information is selected from a group comprising properties of said proxy object and operations of said proxy object.

9. The method of claim 3 wherein said IDL modifier is a system object model IDL modifier.

10. The method of claim 1 wherein said first portion of said information at least partially defines said proxy object.

11. The method of claim 1 wherein said second portion of said information corresponds to a window object.

12. The method of claim 11 wherein said second portion of said information is size and position of said window object.

13. The method of claim 11 including:

generating a user interface to a programmer in response to said executing said visual builder function for facilitating programming of said proxy object at said build time.

14. The method of claim 13 wherein said programming comprises:

manipulation of said proxy object'"'"'s runtime behavior.

15. The method of claim 14 wherein said visual builder function includes copy, save, and restore functions of said proxy object at said programming time.

16. The method of claim 15 wherein said proxy object is persistent.

17. A computerized system for supporting a proxy object in a visual builder function comprising:

means for storing a first portion of information corresponding to said proxy object in said proxy object;

means for storing a second portion of said information comprising visual programmable interface information viewable at build time for supporting visual programmability of said proxy object at said build time, said second portion at least partially defining said proxy object in an interface repository; and

means for executing a visual builder function invoking said second portion of said information at said build time.

18. The system claim 17 wherein said first portion enables means for retrieval of said second portion from said interface repository during said build time.

19. The system of claim 18 wherein said second portion of said information is imbedded in an IDL modifier of the class of said proxy object.

20. The system of claim 17 wherein said first portion of said information at least partially defines said proxy object.

21. The system of claim 19 wherein said IDL modifier is a system object model IDL modifier.

22. The system of claim 17 wherein said interface repository is a system object model interface repository.

23. The system of claim 22 wherein said first portion of said information is hardcoded.

24. The system of claim 23 wherein said second portion of said information is editable text.

25. The system of claim 24 wherein said first portion defines a metaclass of said proxy object.

26. The system of claim 25 wherein said second portion of information is selected from a group comprising properties of said proxy object and operations of said proxy object.

27. The apparatus of claim 17 wherein said second portion of said information corresponds to a window object.

28. The apparatus of claim 17 wherein said second portion of said information is size and position of said window object.

29. The apparatus of claim 28 including:

means for generating a user interface to a programmer in response to said means for executing said visual builder function for facilitating said programmer'"'"'s programming of said proxy object at said build time.

30. The apparatus of claim 29 wherein said means for generating includes:

means for manipulation of said proxy object'"'"'s runtime behavior.

31. The apparatus of claim 30 wherein said visual builder function includes means for copying, saving, and restoring functions of said proxy object at said build time.

32. The apparatus of claim 31 wherein said proxy object is persistent.