Method, system and program product in a model-view-controller (MVC) programming architecture for inter-object communication with transformation

• US 20030197726A1
• Filed: 03/28/2002
• Published: 10/23/2003
• Est. Priority Date: 03/28/2002
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Weitzman, Louis M.
• Granted Patent: US 7,114,127 B2
• Time in Patent Office: Days
• US Class Current: 715/744
• CPC Class Codes: G06F 8/10 Requirements analysis; Specification techniques

Abstract

A system, method and program product in a Model-View-Controller architecture for communicating between objects such as a Model object and a View object. A transform object is provided in the interface between any of the conventional Model, View and Controller objects such that transformation of data types into appropriate other data types is accomplished outside of the MVC object. This relieves the recipient MVC object of the responsibility of being designed to support multiple data types in order to perform a function.

Claims

1. A method for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, the method comprising the steps of:

receiving at a transform object, a first message from a first MVC object;

creating, according to a predefined plan, a transformed message from said first message; and

,

sending said transformed message to a second MVC object.

2. The method according to claim 1 further comprising the steps of:

sending said first message to said transform object; and

receiving said transformed message from said transform object.

3. The method according to claim 1 wherein said view object comprises a widget.

4. A method for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, the method comprising the steps of:

receiving at a transform object, a first message from said model object;

creating, according to a predefined plan, a transformed message from said first message; and

sending said transformed message to said view object.

5. The method according to claim 4 wherein said first message comprises a variable type selected from one of integer, Boolean, short, long, floating point, double, character, binary, string, and time.

6. The method according to claim 4 wherein said transformed message comprises a user perceived attribute selected from one of position, size, value, texture, text, text, orientation, color, shape, audio, video and transparency.

7. The method according to claim 4 further comprising the steps of:

sending said first message from said model object to said transform object; and

receiving at said view object, said transformed message from said transform object.

8. The method according to claim 4 wherein said view object comprises a widget.

9. A method for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, the method comprising the steps of:

receiving at a transform object, a first message from said controller object;

creating, according to a predefined plan, a transformed message from said first message; and

sending said transformed message to said model object.

10. The method according to claim 9 wherein said transformed message comprises a variable type selected from one of integer, Boolean, short, long, floating point, double, character, binary, string, and time.

11. The method according to claim 9 wherein said first message comprises a user provided attribute selected from one of mouse position, mouse state, keyboard entry, network message, audio, video, temperature and external sensor.

12. The method according to claim 9 further comprising the steps of:

sending said first message from said controller object to said transform object; and

receiving at said model object, said transformed message from said transform object.

13. A computer program product for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, said computer program product comprising a computer readable medium having computer readable program code therein comprising:

computer readable program code for receiving at a transform object, a first message from a first MVC object;

computer readable program code for creating, according to a predefined plan, a transformed message from said first message; and

computer readable program code for sending said transformed message to a second MVC object.

14. The computer program product according to claim 13 wherein said computer readable program code in said computer readable medium further comprises:

computer readable program code for sending said first message from said model object to said transform object; and

computer readable program code for receiving at said view object, said transformed message from said transform object.

15. The computer program product according to claim 13 wherein said view object comprises a widget.

16. A computer program product for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, said computer program product comprising a computer readable medium having computer readable program code therein in a computing system comprising:

computer readable program code for receiving at a transform object, a first message from said model object;

computer readable program code means for creating, according to a predefined plan, a transformed message from said first message; and

computer readable program code for sending said transformed message to said view object.

17. The computer program product according to claim 16 wherein said computer readable program code in said computer readable medium further comprises:

computer readable program code for sending said first message from said model object to said transform object; and

computer readable program code for receiving at said view object, said transformed message from said transform object.

18. The computer program product according to claim 16 wherein said first message comprises a variable type selected from one of integer, Boolean, short, long, floating point, double, character, binary, string, and time.

19. The computer program product according to claim 16 wherein said transformed message comprises a user perceived attribute selected from one of position, size, value, texture, text, orientation, color, shape, audio, video and transparency.

20. The computer program product according to claim 16 wherein said view object comprises a widget.

21. A computer program product for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, said computer program product comprising a computer readable medium having computer readable program code therein comprising:

computer readable program code for receiving at a transform object, a first message from said controller object;

computer readable program code for creating, according to a predefined plan, a transformed message from said first message; and

computer readable program code for sending said transformed message to said model object.

22. The computer program product according to claim 21 wherein said transformed message comprises a variable type selected from one of integer, Boolean, short, long, floating point, double, character, binary, string, and time.

23. The computer program product according to claim 21 wherein said first message comprises a user provided attribute selected from one of mouse position, mouse state, keyboard entry, network message, audio, video, temperature and external sensor.

24. The computer program product according to claim 21 wherein said computer readable program code in said computer readable medium further comprises:

computer readable program code for sending said first message from said controller object to said transform object; and

computer readable program code for receiving at said model object, said transformed message from said transform object.

25. A system for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, the system comprising:

a first message receiver for receiving, a first message from a first MVC object;

a message transformer for creating, according to a predefined plan, a transformed message from said first message; and

a second message sender for sending said transformed message to a second MVC object.

26. The system according to claim 25 further comprising:

a first message sender for sending said first message to said transform object; and

a second message receiver for receiving said transformed message from said transform object.

27. The system according to claim 25 wherein said view object comprises a widget.

28. A system for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, the system comprising:

a first message receiver for receiving at a transform object, a first message from said model object;

a message transformer for creating, according to a predefined plan, a transformed message from said first message; and

a second message sender for sending said transformed message to said view object.

29. The system according to claim 28 wherein said first message comprises a variable type selected from one of integer, Boolean, short, long, floating point, double, character, binary, string, and time.

30. The system according to claim 28 wherein said transformed message comprises a user perceived attribute selected from one of position, size, value, texture, text, orientation, color, shape, audio, video and transparency.

31. The system according to claim 28 further comprising:

a first message sender for sending said first message from said model object to said transform object; and

a second message receiver for receiving at said view object, said transformed message from said transform object.

32. The system according to claim 28 wherein said view object comprises a widget.

33. A system for communicating between objects in a Model-View-Controller architecture program system including a programmably interconnected model object, view object and controller object, the system comprising:

a first message receiver for receiving at a transform object, a first message from said controller object;

a message transformer for creating, according to a predefined plan, a transformed message from said first message; and

a second message sender for sending said transformed message to said model object.

34. The system according to claim 33 wherein said transformed message comprises a variable type selected from one of integer, Boolean, short, long, floating point, double, character, binary, string, and time.

35. The system according to claim 33 wherein said first message comprises a user provided attribute selected from one of mouse position, mouse state, keyboard entry, network message, audio, video, temperature and external sensor.

36. The system according to claim 33 further comprising:

a first message sender for sending said first message from said controller object to said transform object; and

a second message receiver for receiving at said model object, said transformed message from said transform object.