Object based access application programming interface for data versioning

• US 20060161602A1
• Filed: 01/18/2005
• Published: 07/20/2006
• Est. Priority Date: 01/18/2005
• Status: Abandoned Application

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Williamson, Paul Stuart, Brown, Michael Wayne, Barrs, John William
• Application Number:
  US11/037,145
• Publication Number:
  US 20060161602A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/219 Managing data history or versioning querying versioned data G06F16/2474; querying temporal data G06F16/2477
• CPC Class Codes: G06F 9/44536 Selecting among different versions
• CPC Class Codes: G06F 9/4488 Object-oriented

Abstract

A method, apparatus, and computer instructions for managing object properties. A setter call is received from an application, wherein the setter call includes data. A determination is made as to whether the setter call is versionable. The setter call is executed if the call is a versionable call, wherein versioning data is saved in executing the setter call.

Claims

1. A method in a data processing system for managing object properties, the method comprising:

receiving a setter call from an application, wherein the setter call includes data;

determining whether the setter call is versionable; and

executing the setter call, wherein versioning data is saved in executing the setter call.

2. The method of claim 1, wherein the setter call is versionable if at least one of a parameter is present in the setter call and the object is a versionable object.

3. The method of claim 1, wherein the data is identified by a first marking statement in the code and a second marking statement in the code, wherein a portion of code between the first marking statement and the second marking statement form a marked section of code encompassing the object, and wherein a change made in data in an object caused by execution of the marked portion of code is tracked such that the object may be restored to a prior state.

4. The method of claim 2, wherein the parameter selected from one of the versioning identifier or an indicator indicating versioning for the object.

5. The method of claim 1, wherein the data is a group of objects, wherein the group of objects is marked for versioning such that versioning data is saved for the group of objects.

6. The method of claim 1, further comprising:

receiving a getter call for data for an object;

determining whether the getter call is versionable; and

responsive to the getter call being versionable, retrieving a version of the data for the object.

7. The method of claim 6, wherein the data is for a property of the object.

8. The method of claim 6, wherein the getter call is versionable if an additional parameter is present in the getter call.

9. A data processing system for managing object properties, the data processing system comprising:

receiving means for receiving a setter call from an application, wherein the setter call includes data;

determining means for determining whether the setter call is versionable; and

executing means for executing the setter call, wherein versioning data is saved in executing the setter call.

10. The data processing system of claim 9, wherein the setter call is versionable if at least one of a parameter is present in the setter call and the object is a versionable object.

11. The data processing system of claim 9, wherein the data is identified by a first marking statement in the code and a second marking statement in the code, wherein a portion of code between the first marking statement and the second marking statement form a marked section of code encompassing the object, and wherein a change made in data in an object caused by execution of the marked portion of code is tracked such that the object may be restored to a prior state.

12. The data processing system of claim 10, wherein the parameter selected from one of the versioning identifier or an indicator indicating versioning for the object.

13. A computer program product in a computer readable medium for managing object properties, the computer program product comprising:

first instructions for receiving a setter call from an application, wherein the setter call includes data;

second instructions for determining whether the setter call is versionable; and

third instructions for executing the setter call, wherein versioning data is saved in executing the setter call.

14. The computer program product of claim 13, wherein the setter call is versionable if at least one of a parameter is present in the setter call and the object is a versionable object.

15. The computer program product of claim 13, wherein the data is identified by a first marking statement in the code and a second marking statement in the code, wherein a portion of code between the first marking statement and the second marking statement form a marked section of code encompassing the object, wherein a change made in data in an object caused by execution of the marked portion of code is tracked such that the object may be restored to a prior state.

16. The computer program product of claim 14, wherein the parameter selected from one of the versioning identifier or an indicator indicating versioning for the object.

17. The computer program product of claim 13, wherein the data is a group of objects, wherein the group of objects is marked for versioning such that versioning data is saved for the group of objects.

18. The computer program product of claim 13, further comprising:

fourth instructions for receiving a getter call for data for an object;

fifth instructions for determining whether the getter call is versionable; and

sixth instructions, responsive to the getter call being versionable, for retrieving a version of the data for the object.

19. The computer program product of claim 18, wherein the data is for a property of the object.

20. The computer program product of claim 18, wherein the getter call is versionable if an additional parameter is present in the getter call.