CHANGE LOG HANDLER FOR SYNCHRONZING DATA SOURCES

• US 20080133617A1
• Filed: 12/21/2007
• Published: 06/05/2008
• Est. Priority Date: 05/28/2004
• Status: Abandoned Application

• Current Assignee: Bahri B. Bali, Gordan G. Greenlee
• Original Assignee: Bahri B. Bali, Gordan G. Greenlee
• Inventors: Greenlee, Gordan G., Bali, Bahri B.
• Application Number:
  US11/962,915
• Publication Number:
  US 20080133617A1
• Time in Patent Office: Days
• US Class Current: 707/202
• CPC Class Codes: G06F 16/27 Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: Y10S 707/99952 Coherency, e.g. same view to multiple users
• CPC Class Codes: Y10S 707/99953 Recoverability

Abstract

The present invention provides a change log handler than can accommodate a change log having an entry that includes more than one modification operation or multi-valued attributes. The change log handler typically includes a change parser for parsing change attributes corresponding to the change log that identify changes to the first data source. Such changes can include a plurality of modification operations as reflected in a single entry of the change log. The change log handler also includes a change reflector for applying the changes to a second data source.

Claims

1. A change log handler for synchronizing data sources, comprising:

a change parser for parsing change attributes corresponding to a change log having a plurality of entries, wherein at least one of the plurality of entries includes a plurality of modification operations for a first data source, and wherein the change attributes identify changes to the first data source as recorded in the change log; and

a change reflector for applying the changes to a second data source, wherein the changes applied include the plurality of modification operations of the at least one of the plurality of entries.

2. The change log handler of claim 1, wherein the change parser further detects a type of data for each of the plurality of entries.

3. The change log handler of claim 1, wherein the first data source and the second data source are directories.

4. The change log handler of claim 3, wherein the directories are LDAP directories.

5. The change log handler of claim 1, wherein the first data source and the second data source are databases.

6. The change log handler of claim 1, wherein the change log is an IBM Directory Server (IDS) change log.

7. The change log handler of claim 6, wherein change parser receives the change attributes from a connector in communication with the change log.

8. The change log handler of claim 1, wherein the connector is part of an IBM Directory Integrator (IDI).

9. A program product stored on a recordable medium, for synchronizing data sources, which when executed, comprises:

program code for parsing change attributes corresponding to a change log having a plurality of entries, wherein at least one of the plurality of entries includes a plurality of modification operations for a first data source, and wherein the change attributes identify changes to the first data source as recorded in the change log; and

program code for applying the changes to a second data source, wherein the changes applied include the plurality of modification operations of the at least one of the plurality of entries.

10. The program product of claim 9, further comprising program code for detecting a type of data for each of the plurality of entries.

11. The program product of claim 9, wherein the first data source and the second data source are directories.

12. The program product of claim 9, wherein the directories are LDAP directories.

13. The program product of claim 9, wherein the first data source and the second data source are databases.

14. The program product of claim 9, wherein the change log is an IBM Directory Server (IDS) change log.

15. The program product of claim 9, wherein program code for parsing receives the change attributes from a connector in communication with the change log.

16. The program product of claim 9, wherein the connector is part of an IBM Directory Integrator (IDI).

17. A system for deploying an application for synchronizing data sources, comprising:

a computer infrastructure being operable to;

receive change attributes corresponding to a change log having a plurality of entries, wherein at least one of the plurality of entries includes a plurality of modification operations for a first data source, and wherein the change attributes identify changes to the first data source as recorded in the change log;

parse the change attributes to determine the changes, wherein the changes include the plurality of modification operations of the at least one of the plurality of entries; and

apply the changes to a second data source.

18. Computer software embodied in a propagated signal for synchronizing data sources, the computer software comprising instructions to cause a computer system to perform the following functions:

parse change attributes corresponding to a change log having a plurality of entries, wherein at least one of the plurality of entries includes a plurality of modification operations for a first data source, and wherein the change attributes identify changes to the first data source as recorded in the change log; and

apply the changes to a second data source, wherein the changes applied include the plurality of modification operations of the at least one of the plurality of entries.