AUTOMATED STORAGE AND RETRIEVAL OF DATA

• US 20090030873A1
• Filed: 07/24/2007
• Published: 01/29/2009
• Est. Priority Date: 07/24/2007
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Reeves, William D., Dao, Quyen C., Snyder, Paul L., Reel, John T.
• Granted Patent: US 8,271,508 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/90335 Query processing

Abstract

The present invention is directed to the automated storage and retrieval of data. A method in accordance with an embodiment of the present invention includes: requesting a data record; broadcasting a query for the requested data record to a plurality of data records in a data center, the query comprising a unique listener key identifying the requested data record and information regarding a requesting program; providing each of the plurality of data records with a listener, wherein each listener actively monitors the broadcasted query to determine if the unique listener key in the broadcasted query matches a unique listener key of the data record associated with the listener; and in the case of a match, automatically transferring the data record with the matching unique listener key from the data center to the requesting program.

Claims

1. A method for retrieving data, comprising:

requesting a data record;

broadcasting a query for the requested data record to a plurality of data records in a data center, the query comprising a unique listener key identifying the requested data record and information regarding a requesting program;

providing each of the plurality of data records with a listener, wherein each listener actively monitors the broadcasted query to determine if the unique listener key in the broadcasted query matches a unique listener key of the data record associated with the listener; and

in the case of a match, automatically transferring the data record with the matching unique listener key from the data center to the requesting program.

2. The method of claim 1, further comprising:

assigning a unique listener key to each data record of the plurality of data records; and

storing the plurality of data records in the data center.

3. The method of claim 2, wherein the query comprises a plurality of unique listener keys each identifying a respective requested data record, further comprising:

automatically transferring each data record with a matching unique listener key from the data center to the requesting program.

4. The method of claim 1, wherein each listener simultaneously monitors the broadcasted query.

5. The method of claim 1, further comprising:

storing each unique listener key in a listener key table.

6. The method of claim 5, further comprising:

removing a data record from the data center;

reassigning the unique listener key of the removed data record to another data record; and

updating the listener key table to reflect the reassignment of the unique listener key.

7. The method of claim 1, wherein the query comprises information regarding a plurality of requesting programs, further comprising:

automatically transferring the data record with the matching unique listener key from the data center to each of the plurality of requesting programs in the case of a match.

8. A system for retrieving data, comprising:

a system for requesting a data record;

a system for broadcasting a query for the requested data record to a plurality of data records in a data center, the query comprising a unique listener key identifying the requested data record and information regarding a requesting program;

a system for providing each of the plurality of data records with a listener, wherein each listener comprises a system for actively monitoring the broadcasted query to determine if the unique listener key in the broadcasted query matches a unique listener key of the data record associated with the listener; and

a system for automatically transferring the data record with the matching unique listener key from the data center to the requesting program, in the case of a match.

9. The system of claim 8, further comprising:

a system for assigning a unique listener key to each data record of the plurality of data records; and

a system for storing the plurality of data records in the data center.

10. The system of claim 9, wherein the query comprises a plurality of unique listener keys each identifying a respective requested data record, further comprising:

a system for automatically transferring each data record with a matching unique listener key from the data center to the requesting program.

11. The system of claim 8, wherein each listener is configured to simultaneously monitor the broadcasted query.

12. The system of claim 8, further comprising:

a system for storing each unique listener key in a listener key table.

13. The system of claim 12, further comprising:

a system for removing a data record from the data center;

a system for reassigning the unique listener key of the removed data record to another data record; and

a system for updating the listener key table to reflect the reassignment of the unique listener key.

14. The system of claim 8, wherein the query comprises information regarding a plurality of requesting programs, further comprising:

a system for automatically transferring the data record with the matching unique listener key from the data center to each of the plurality of requesting programs in the case of a match.

15. A program product stored on a computer readable medium, which when executed, retrieves data, the computer readable medium comprising program code for:

requesting a data record;

broadcasting a query for the requested data record to a plurality of data records in a data center, the query comprising a unique listener key identifying the requested data record and information regarding a requesting program;

providing each of the plurality of data records with a listener, wherein each listener actively monitors the broadcasted query to determine if the unique listener key in the broadcasted query matches a unique listener key of the data record associated with the listener; and

in the case of a match, automatically transferring the data record with the matching unique listener key from the data center to the requesting program.

16. A method for deploying an application for retrieving data, comprising:

providing a computer infrastructure being operable to;

request a data record;

broadcast a query for the requested data record to a plurality of data records in a data center, the query comprising a unique listener key identifying the requested data record and information regarding a requesting program;

provide each of the plurality of data records with a listener, wherein each listener actively monitors the broadcasted query to determine if the unique listener key in the broadcasted query matches a unique listener key of the data record associated with the listener; and

in the case of a match, automatically transfer the data record with the matching unique listener key from the data center to the requesting program.