Method for synchronizing classes, objects, attributes and object properties across an object-oriented system

• US 5,893,913 A
• Filed: 11/12/1996
• Issued: 04/13/1999
• Est. Priority Date: 11/12/1996
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Grose, Timothy James, Korenshtein, Roni, Brodsky, Stephen Andrew
• Primary Examiner(s): Lintz, Paul R.
• Assistant Examiner(s): Mizrahi, Diane D.
• Application Number:
  US08/747,415
• Time in Patent Office: 882 Days
• Field of Search: 707/103, 707/201, 707/1, 707/8, 1/1, 395/683, 364/489, 345/350
• US Class Current: 1/1
• CPC Class Codes: G06F 11/3664 Environments for testing or debugging software
• CPC Class Codes: G06F 16/289 Object oriented databases
• CPC Class Codes: G06F 8/71 Version control security arrangements therefor G06F21/57; Configuration management
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99938 Concurrency, e.g. lock management in shared database
• CPC Class Codes: Y10S 707/99952 Coherency, e.g. same view to multiple users

Abstract

A method, apparatus, and article of manufacture which provides for synchronizing classes, objects, attributes, object properties, etc., in an object-oriented system. The method comprises the steps of identifying target classes, objects, attributes, object properties, etc., verifying whether the synchronization of each of the targets can proceed, and modifying the targets, wherein the target classes, objects, attributes, etc. are synchronized across the object-oriented system. The identifying step further comprises the steps of navigating the object-oriented system based on definitional relationships and ownership relationships, generating target identifiers that uniquely identify the targets, and recording the target identifiers in a linear data structure.

Claims

1. A computerized method for synchronizing elements of an object-oriented system, comprising the steps of:

identifying one or more targets to be modified in an object-oriented system stored in a computer by navigating the object-oriented system based on relationships between the targets;

verifying whether synchronization of each of the identified targets can proceed; and

modifying the identified targets in the computer when the verifying step indicates that synchronization of all of the identified targets can proceed.

2. The method of claim 1, wherein the targets are selected from a group comprised of classes, objects, attributes, and object properties.

3. The method of claim 1, wherein the identifying step comprises the steps of:

generating target identifiers, wherein the target identifiers uniquely identify the targets; and

recording the target identifiers in a linear structure.

4. The method of claim 1, wherein the relationships between the targets comprise definitional relationships between objects.

5. The method of claim 1, wherein the relationships between the targets comprise ownership relationships.

6. The method of claim 1, wherein the relationships are selected from a group comprising:

(1) in a defining entity, from an object to a class and from a subclass to a superclass;

(2) in a defined entity, from a class to an object and a superclass to a subclass;

(3) in an owner, from a sub-entity to a class or object, where the sub-entity is an attribute or event;

(4) in an owned entity, from a class or object to a sub-entity; and

(5) in related attributes, from an attribute to another attribute via a relation.

7. The method of claim 1, wherein the navigating step comprises the steps of selecting a navigation pattern based on characteristics of a source entity, wherein the source entity is selected from a group comprising a class, object, and attribute, and navigating the object-oriented system using the selected navigation pattern.

8. The method of claim 7, wherein the navigation pattern is an attribute navigation pattern.

9. The method of claim 8, wherein the attribute navigation pattern comprises the steps of:

determining a relationship between the source entity and the object-oriented system; and

identifying associated targets based on the determined relationship.

10. The method of claim 7, wherein the navigation pattern is a recursive navigation pattern.

11. The method of claim 10, wherein the recursive navigation pattern comprises the step of recursively traversing the object-oriented system to identify the targets.

12. The method of claim 7, wherein the navigation pattern is a self navigation pattern.

13. The method of claim 12, wherein the self navigation pattern comprises the step of locating the target in the object-oriented system.

14. The method of claim 1, wherein the modifying step comprises the step of selectively modifying the targets in response to operator input.

15. A computerized apparatus for synchronizing elements of an object-oriented system, comprising:

a computer having a memory;

means, performed by the computer, for identifying one or more targets to be modified in an object-oriented system stored in the computer by navigating the object-oriented system based on relationships between the targets;

means, performed by the computer, for verifying whether synchronization of each of the identified targets can proceed; and

means, performed by the computer, for modifying the identified targets in the computer when the verifying step indicates that synchronization of all of the identified targets can proceed.

17. The apparatus of claim 15, wherein the targets are selected from a group comprised of classes, objects, attributes, and object properties.

18. The apparatus of claim 15, wherein the identifying means comprises:

means for generating target identifiers, wherein the target identifiers uniquely identify the targets; and

means for recording the target identifiers in a linear structure.

19. The apparatus of claim 15, wherein the relationships between the targets comprise definitional relationships between objects.

20. The apparatus of claim 15, wherein the relationships between the targets comprise ownership relationships.

21. The apparatus of claim 15, wherein the relationships are selected from a group comprising:

(1) in a defining entity, from an object to a class and from a subclass to a superclass;

(2) in a defined entity, from a class to an object and a superclass to a subclass;

(3) in an owner, from a sub-entity to a class or object, where the sub-entity is an attribute or event;

(4) in an owned entity, from a class or object to a sub-entity; and

(5) in related attributes, from an attribute to another attribute via a relation.

22. The apparatus of claim 15, wherein the navigating means comprises means for selecting a navigation pattern based on characteristics of a source entity, wherein the source entity is selected from a group comprising a class, object, and attribute, and navigating the object-oriented system using the selected navigation pattern.

23. The apparatus of claim 22, wherein the navigation pattern is an attribute navigation pattern.

24. The apparatus of claim 23, wherein the attribute navigation pattern comprises:

means for determining a relationship between the source entity and the object-oriented system; and

means for identifying associated targets based on the determined relationship.

25. The apparatus of claim 22, wherein the navigation pattern is a recursive navigation pattern.

26. The apparatus of claim 25, wherein the recursive navigation pattern comprises the means for recursively traversing the object-oriented system to identify the targets.

27. The apparatus of claim 22, wherein the navigation pattern is a self navigation pattern.

28. The apparatus of claim 27, wherein the self navigation pattern comprises the means for locating the target in the object-oriented system.

29. The apparatus of claim 15, wherein the modifying means comprises the means for selectively modifying the targets in response to operator input.

16. An article of manufacture comprising a program storage medium readable by a computer having a memory, the medium tangibly embodying one or more programs of instructions executable by the computer to perform method steps for synchronizing elements of an object-oriented system, the method comprising the steps of:

identifying one or more targets to be modified in an object-oriented system stored in the computer by navigating the object-oriented system based on relationships between the targets;

verifying whether synchronization of each of the identified targets can proceed; and

modifying the identified targets in the computer when the verifying step indicates that synchronization of all of the identified targets can proceed.

30. The article of manufacture of claim 16, wherein the targets are selected from a group comprised of classes, objects, attributes, and object properties.

31. The article of manufacture of claim 16, wherein the identifying step comprises the steps of:

generating target identifiers, wherein the target identifiers uniquely identify the targets; and

recording the target identifiers in a linear structure.

32. The article of manufacture of claim 16, wherein the relationships between the targets comprise definitional relationships between objects.

33. The article of manufacture of claim 16, wherein the relationships between the targets comprise ownership relationships.

34. The article of manufacture of claim 16, wherein the relationships are selected from a group comprising:

(1) in a defining entity, from an object to a class and from a subclass to a superclass;

(2) in a defined entity, from a class to an object and a superclass to a subclass;

(3) in an owner, from a sub-entity to a class or object, where the sub-entity is an attribute or event;

(4) in an owned entity, from a class or object to a sub-entity; and

(5) in related attributes, from an attribute to another attribute via a relation.

35. The article of manufacture of claim 16, wherein the navigating step comprises the steps of selecting a navigation pattern based on characteristics of a source entity, wherein the source entity is selected from a group comprising a class, object, and attribute, and navigating the object-oriented system using the selected navigation pattern.

36. The article of manufacture of claim 35, wherein the navigation pattern is an attribute navigation pattern.

37. The article of manufacture of claim 36, wherein the attribute navigation pattern comprises the steps of:

determining a relationship between the source entity and the object-oriented system; and

identifying associated targets based on the determined relationship.

38. The article of manufacture of claim 35, wherein the navigation pattern is a recursive navigation pattern.

39. The article of manufacture of claim 38, wherein the recursive navigation pattern comprises the step of recursively traversing the object-oriented system to identify the targets.

40. The article of manufacture of claim 35, wherein the navigation pattern is a self navigation pattern.

41. The article of manufacture of claim 40, wherein the self navigation pattern comprises the step of locating the target in the object-oriented system.

42. The article of manufacture of claim 16, wherein the modifying step comprises the step of selectively modifying the targets in response to operator input.