System and method for controlling versions of objects in an object oriented computing environment

• US 5,499,365 A
• Filed: 08/04/1993
• Issued: 03/12/1996
• Est. Priority Date: 08/04/1993
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Anderson, James B., Wason, James R., Fitzpatrick, Francis L., Harvey, Charles B. Jr., Hans, William M., Mitchell, Herman
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): Lintz, Paul R.
• Application Number:
  US08/101,618
• Time in Patent Office: 951 Days
• Field of Search: 395/600, 395/700, 395/650, 395/164, 364/474.24
• US Class Current: 717/122
• CPC Class Codes: G06F 8/71 Version control security arrangements therefor G06F21/57; Configuration management

Abstract

A system and method for controlling versions of selected objects in an object oriented computing system includes a common logical key attribute in each version of an object, which is used to identify all versions of an object. The object frame of each version also includes a unique combination of an insert sequence attribute and an extract sequence attribute. The unique combination of insert sequence attribute and extract sequence attribute allows the selection of a unique version of an object based on time. In order to select one or more versions of an identified object, a version time is converted into a selection sequence value. The selection sequence value is then compared to the insert sequence attributes and extract sequence attributes in order to select at least one of the versions of the selected objects. Each version may also include a perspective attribute for providing another selection criteria for selecting one or more versions of an object.

Claims

1. A system for controlling versions of selected objects in an object oriented computing system on a computing platform, each object including an object frame containing data attributes and at least one object method for performing actions on the associated object, said version controlling system comprising:

means for creating a plurality of versions of a selected object, the data frame of each of said plurality of versions including a common logical key attribute, the data frame of each of said plurality of versions including a unique combination of an insert sequence attribute and an extract sequence attribute;

means, responsive to a selection request, for identifying said plurality of versions of said selected object based upon the common logical key attribute associated therewith;

means, responsive to said selection request and to a version identifier, for converting said version identifier into a selection sequence value; and

means, responsive to said selection sequence value, for selecting at least one of said plurality of versions of said selected object by comparing said selection sequence value to at least one of said insert sequence attributes and said extract sequence attributes.

2. The version control system of claim 1 wherein said selecting means comprises first means for identifying one of said versions of said selected object having an insert sequence attribute which is less than or equal to said selection sequence value, and an extract sequence attribute which is greater than said selection sequence value.

3. The version control system of claim 2 wherein said selecting means further comprises second means for identifying one of said versions of said selected object having an insert sequence attribute which is equal to said selection sequence value.

4. The version control system of claim 3 wherein said selecting means comprises third means for identifying one of said versions of said selected object having an extract sequence attribute which is equal to said selection sequence value.

5. The version control system of claim 4 wherein said selecting means comprises fourth means for identifying at least one of said versions of said selected object having an insert sequence attribute which is less than or equal to said selection sequence value, and an extract sequence attribute which is greater than or equal to said selection sequence value.

6. The version control system of claim 5 wherein said selecting means comprises means for identifying one of said versions of said selected object having an extract sequence attribute which is greater than said selection sequence value.

7. The version control system of claim 1 wherein the data frame of each of said plurality of versions further includes a perspective attribute, and wherein said selecting means is further responsive to a perspective value for selecting at least one of said plurality of versions of said selected object by comparing said selection sequence value to said insert sequence attributes and said extract sequence attributes and by comparing said perspective value to said perspective attribute.

8. The version control system of claim 1 wherein said creating means comprises means for adding a new version to said plurality of versions.

9. The version control system of claim 8 wherein said creating means further comprises means for changing at least one data attribute of at least one of said plurality of versions.

10. The version control system of claim 9 wherein said creating means further comprises means for deleting at least one of said plurality of versions.

11. The version control system of claim 9 wherein said creating means further comprises means for undoing the effect of at least one of said plurality of versions.

12. The version control system of claim 11 wherein said creating means further comprises means for promoting at least one of said plurality of versions from an informal status to a formal status.

13. The version control system of claim 1 wherein said version identifier is a version time, said converting means comprising means for converting said version time into a selection sequence value.

14. The version control system of claim 1 wherein said version identifier is a version name, said converting means comprising means for mapping said version name to a selection sequence value.

15. The version control system of claim 1 wherein said selecting means comprises means for selecting a best version of said plurality of objects from a plurality of complex objects.

16. The version control system of claim 1 further comprising means for presenting selection criteria for identifying said plurality of versions of said selected object and for accepting a selection request in response thereto;

said selecting means further comprising means for displaying said at least one of said plurality of versions.

17. A system for controlling versions of selected objects in an object oriented computing system on a computing platform, each object including an object frame containing data attributes and at least one object method for performing actions on the associated object, said version controlling system comprising:

means for creating a plurality of versions of a selected object, the data frame of each of said plurality of versions including a common logical key attribute, the data frame of each of said plurality of versions including a unique combination of an insert sequence attribute and an extract sequence attribute;

means, responsive to a selection request, for identifying said plurality of versions of said selected object based upon the common logical key attribute associated therewith; and

means, responsive to a selection sequence value, for selecting at least one of said plurality of versions of said selected object by comparing said selection sequence value to at least one of said insert sequence attributes and said extract sequence attributes.

18. The version control system of claim 17 wherein the data frame of each of said plurality of versions further includes a perspective attribute, and wherein said selecting means is further responsive to a perspective value for selecting at least one of said plurality of versions of said selected object by comparing said selection sequence value to said insert sequence attributes and said extract sequence attributes and by comparing said perspective value to said perspective attribute.

19. A method for controlling versions of selected objects in an object oriented computing system on a computing platform, each object including an object frame containing data attributes and at least one object method for performing actions on the associated object, said version controlling method comprising the steps of:

creating a plurality of versions of a selected object, the data frame of each of said plurality of versions including a common logical key attribute, the data frame of each of said plurality of versions including a unique combination of an insert sequence attribute and an extract sequence attribute;

identifying said plurality of versions of said selected object based upon the common logical key attribute associated therewith, in response to a selection request; and

selecting at least one of said plurality of versions of said selected object by comparing a selection sequence value to at least one of said insert sequence attributes and said extract sequence attributes.

20. The version control method of claim 19 wherein said selecting step comprises the step of identifying one of said versions of said selected object having an insert sequence attribute which is less than or equal to said selection sequence value, and an extract sequence attribute which is greater than said selection sequence value.

21. The version control method of claim 20 wherein said selecting step further comprises the step of identifying one of said versions of said selected object having an insert sequence attribute which is equal to said selection sequence value.

22. The version control method of claim 21 wherein said selecting step further comprises the step of identifying one of said versions of said selected object having an extract sequence attribute which is equal to said selection sequence value.

23. The version control method of claim 22 wherein said selecting step further comprises the step of identifying at least one of said versions of said selected object having an insert sequence attribute which is less than or equal to said selection sequence value, and an extract sequence attribute which is greater than or equal to said selection sequence value.

24. The version control method of claim 23 wherein said selecting step further comprises the step of identifying one of said versions of said selected object having an extract sequence attribute which is greater than said selection sequence value.

25. The version control method of claim 19 wherein the data frame of each of said plurality of versions further includes a perspective attribute, and wherein said selecting step is further responsive to a perspective value for selecting at least one of said plurality of versions of said selected object by comparing said selection sequence value to said insert sequence attributes and said extract sequence attributes and by comparing said perspective value to said perspective attribute.

26. The version control method of claim 19 wherein said creating step comprises the step of adding a new version to said plurality of versions.

27. The version control method of claim 26 wherein said creating step further comprises the step of changing at least one data attribute of at least one of said plurality of versions.

28. The version control method of claim 27 wherein said creating step further comprises the step of deleting at least one of said plurality of versions.