Classification system for versionable objects

• US 20070016628A1
• Filed: 07/14/2005
• Published: 01/18/2007
• Est. Priority Date: 07/14/2005
• Status: Abandoned Application

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Brown, Michael, Williamson, Paul, Barrs, John
• Application Number:
  US11/181,403
• Publication Number:
  US 20070016628A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/93 Document management systems

Abstract

A computer implemented method, apparatus, and computer usable code for managing versioning data for objects in a virtual machine. A request to allocate an object is received, wherein the request identifies a plurality of parameters for classifying the object. An entry for the object is created in a versioning data structure using the plurality of parameters received in the request. The versioning data structure is used to store delta data for change in the data for the object and wherein the object is associated with the data structure. When a change in the data for the object occurs, the delta data is stored in the versioning data structure based on the plurality of parameters. A particular version of the object may be retrieved using the plurality of parameters.

Claims

1. A computer implemented method for managing versioning data for objects in a virtual machine, the computer implemented method comprising:

receiving a request to allocate an object, wherein the request identifying a plurality of parameters for classifying the object;

creating an entry for the object in a versioning data structure using the plurality of parameters received in the request, wherein the versioning data structure is used to store delta data for change in the data for the object and wherein the object is associated with the data structure;

detecting a change in the data for the object; and

storing the delta data in the versioning data structure based on the plurality of parameters in response to the change in the data for the object, wherein a particular version of the object may be retrieved using the plurality of parameters.

2. The computer implemented method of claim 1 further comprising:

receiving a subsequent request to retrieve a particular version of the object, wherein the request includes values for the plurality of parameters; and

returning the particular version of the object using values for the plurality of parameters.

3. The computer implemented method of claim 2, wherein the returning step comprises:

returning the object to a prior state using the particular version of the object.

4. The computer implemented method of claim 1, wherein the plurality of parameters includes at least one of a classification for the object, a page, a file type, a grouping for the object with other objects, a time stamp, a department, and a page.

5. The computer implemented method of claim 1, wherein the plurality of parameters includes a parameter identifying a group and subgroup for the object.

6. The computer implemented method of claim 1, wherein the request is received using an application programming interface call.

7. The computer implemented method of claim 1, wherein the object is associated with the versioning data structure using at least one of a pointer and an offset.

8. The computer implemented method of claim 1, wherein the request is received from a requester and further comprising:

returning a reference to the object to the requestor.

9. The computer implemented method of claim 1, wherein the computer implemented method is located in a memory management process.

10. A computer program product comprising:

a computer usable medium having computer usable program code for managing versioning data for objects in a virtual machine, said computer program product including;

computer usable program code for receiving a request to allocate an object, wherein the request identifying a plurality of parameters for classifying the object;

computer usable program code for creating an entry for the object in a versioning data structure using the plurality of parameters received in the request, wherein the versioning data structure is used to store delta data for change in the data for the object and wherein the object is associated with the data structure;

computer usable program code for detecting a change in the data for the object; and

computer usable program code for storing the delta data in the versioning data structure based on the plurality of parameters in response to the change in the data for the object, wherein a particular version of the object may be retrieved using the plurality of parameters.

11. The computer program product of claim 10 further comprising:

computer usable program code for receiving a subsequent request to retrieve a particular version of the object, wherein the request includes values for the plurality of parameters; and

computer usable program code for returning the particular version of the object using values for the plurality of parameters.

12. The computer program product of claim 11, wherein the computer usable program code for returning the particular version of the object using values for the plurality of parameters comprises:

computer usable program code for returning the object to a prior state using the particular version of the object.

13. The computer program product of claim 10, wherein the plurality of parameters includes at least one of a classification for the object, a page, a file type, a grouping for the object with other objects, a time stamp, a department, and a page.

14. The computer program product of claim 10, wherein the plurality of parameters includes a parameter identifying a group and subgroup for the object.

15. The computer program product of claim 10, wherein the request is received using an application programming interface call.

16. The computer program product of claim 10, wherein the object is associated with the versioning data structure using at least one of a pointer and an offset.

17. The computer program product of claim 10, wherein the request is received from a requestor and further comprising:

computer usable code for returning a reference to the object to the requester.

18. A data processing system comprising:

a bus;

a communications unit connected to the bus;

a memory connected to the bus, wherein the memory includes a set of instructions; and

a processor unit connected to the bus, wherein the processor unit executes the computer usable code to receive a request to allocate an object, wherein the request identifying a plurality of parameters for classifying the object;

create an entry for the object in a versioning data structure using the plurality of parameters received in the request, wherein the versioning data structure is used to store delta data for change in the data for the object and wherein the object is associated with the data structure;

detect a change in the data for the object; and

store the delta data in the versioning data structure based on the plurality of parameters in response to the change in the data for the object, wherein a particular version of the object may be retrieved using the plurality of parameters.

19. The data processing system of claim 18, wherein the processor unit further executes the computer usable code to receive a subsequent request to retrieve a particular version of the object, wherein the request includes values for the plurality of parameters;

and return the particular version of the object using values for the plurality of parameters.

20. The data processing system of claim 19, wherein in executing the computer usable code to return the particular version of the object using values for the plurality of parameters, the processor further executes the computer usable code to return the object to a prior state using the particular version of the object.