System and method for item versioning in a content mangement system

• US 7,099,899 B2
• Filed: 04/23/2002
• Issued: 08/29/2006
• Est. Priority Date: 04/23/2002
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Wang, I-Shin Andy, Deb, Sudipta Deb, Shah, Mayank Vipin, Nelson, Kenneth Carlin, Liang, Lily, Hu, Tawei, Choy, David Mun-Hien, Perry, Edward Joseph, Zhang, Howard Hao
• Primary Examiner(s): Gaffin, Jeffrey
• Assistant Examiner(s): ABEL JALIL, NEVEEN
• Application Number:
  US10/128,861
• Publication Number:
  US 20030200235A1
• Time in Patent Office: 1,589 Days
• Field of Search: 707 1-1041, 707200-205, 712/20, 717/101
• 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: Y10S 707/99952 Coherency, e.g. same view to multiple users
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

A content management system provides versioning capability that can either be controlled by the client application or be transparent thereto. Control of document versions depends on the root and child component attributes that are defined by the hierarchical structure of the document. When a document is updated, the present system performs any or all of the following scenarios as desired by the user: replace the existing attribute values stored in the root component instance for a specified document; replace the existing attribute values stored in a specified child component instance for the specified document; add a new child component instance into the hierarchical structure for the specified document; or delete an existing child component instance from the hierarchical structure for the specified document.

Claims

1. A computer-implemented method for item versioning in a database content management system that includes a plurality of tables, the method comprising:

acquiring a predetermined version control indicator of allowable versions for an entire hierarchical structure of an item type of one of the database tables, wherein the hierarchical structure comprises a root component and at least one child component;

updating an item that is an instance of the item type; and

implementing version control of the item based on the version control indicator and attributes of the root and child components that are defined by the hierarchical structure of the item type;

wherein, upon updating the item, automatically creating a new version of the entire item, so that multiple versions of the item are maintained in the hierarchical structure of the item type;

wherein the multiple versions of the item share a single item identification, with each version being identified by a unique version number; and

wherein each of the multiple versions of the item reflects a different version of the item and includes a corresponding version of the entire hierarchical structure of the item type.

2. The method of claim 1, further comprising predefining the version control indicator and a maximum number of allowable versions in an item type definition table for the entire hierarchical structure of the item type.

3. The method of claim 1, wherein implementing version control comprises updating the item by replacing existing attributes of a root component instance of the item.

4. The method of claim 1, wherein implementing version control comprises replacing existing attributes of a specific child component instance of the item.

5. The method of claim 1, wherein implementing version control comprises adding a new child component instance of the item into the hierarchical structure of the item type.

6. The method of claim 1, wherein implementing version control comprises deleting an existing child component instance of the item from the hierarchical structure of the item type.

7. A computer program product having a plurality of executable instructions stored on a computer usable medium, for item versioning in a content management system that includes a plurality of tables, the computer program product comprising:

a first set of program instructions that acquire a predetermined version control indicator and of allowable versions for an entire hierarchical structure of an item type of one of the database tables, wherein the hierarchical structure comprises a root component and at least one child component;

a second set of program instructions that update an item that is an instance of the item type; and

a third set of program instructions that implement version control of the item based on the version control indicator and attributes of the root and child components that are defined by the hierarchical structure of the item type,

wherein, upon updating the item, the third set of program instructions automatically creates a new version of the entire item, so that multiple versions of the item are maintained in the hierarchical structure of the item type;

wherein the multiple versions of the item share a single item identification, with each version being identified by a unique version number; and

wherein each of the multiple versions of the item reflects a different version of the item and includes a corresponding version of the entire hierarchical structure of the item type.

8. The computer program product of claim 7, further comprising an item type definition table for the entire hierarchical structure of the item type that stores predefined version control indicator and a maximum number of allowable versions.

9. The computer program product of claim 7, wherein the third set of program instructions updates the item by replacing existing attributes of a root component instance of the item.

10. The computer program product of claim 7, wherein the third set of program instructions replaces existing attributes of a specific child component instance of the item.

11. The computer program product of claim 7, wherein the third set of program instructions adds a new child component instance of the item into the hierarchical structure of the item type.

12. The computer program product of claim 7, wherein the third set of program instructions deletes an existing child component instance of the item from the hierarchical structure of the item type.

13. A computer-implemented content management system that includes a piurality of tables, for item versioning, the system comprising:

means for acquiring a predetermined version control indicator of allowable versions for an entire hierarchical structure of an item type of one of the database tables, wherein the hierarchical structure comprises a root component and at least one child component;

means for updating an item that is an instance of the item type; and

means for implementing version control of the item based on the version control indicator and attributes of the root and child components that are defined by the hierarchical structure of the item type;

wherein, upon updating the item, the means for implementing version control of the item automatically creates a new version of the entire item, so that multiple versions of the item are maintained in the hierarchical structure of the item type;

wherein the multiple versions of the item share a single item identification, with each version being identified by a unique version number; and

wherein each of the multiple versions of the item reflects a different version of the item and includes a corresponding version of the entire hierarchical structure of the item type.

14. The content management system of claim 13, further comprising means for predefining the version control indicator and a maximum number of allowable versions in an item type definition table for the entire hierarchical structure of the item type.

15. The content management system of claim 13, wherein the implementing means updates the item by replacing existing attributes of a root component instance of the item.

16. The content management system of claim 13, wherein the implementing means replaces existing attributes of a specific child component instance of the item.

17. The content management system of claim 13, wherein the implementing means adds a new child component instance of the item into the hierarchical structure of the item type.

18. The content management system of claim 13, wherein the implementing means deletes an existing child component instance of the item into the hierarchical structure of the item type.