ADVANCE ENHANCEMENT OF SECONDARY PERSISTENCY FOR EXTENSION FIELD SEARCH

• US 20120030225A1
• Filed: 07/29/2010
• Published: 02/02/2012
• Est. Priority Date: 07/29/2010
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP SE
• Inventors: Schlarb, Uwe, Wintel, Maic, Müller, Martin, Böhm, Thilo
• Granted Patent: US 9,063,958 B2
• Time in Patent Office: Days
• US Class Current: 707/760
• CPC Class Codes: G06F 16/21 Design, administration or maintenance of databases
• CPC Class Codes: G06F 16/24535 of sub-queries or views

Abstract

Some aspects include reception of an indication of an extension field added to a node of a business object object model, and modification of a schema of a search engine index based on the extension field and before receiving an instruction to add the extension field to a search view.

Claims

1. A method implemented by a computer in response to execution of program code by a processor of said computer, comprising:

receiving an indication of an extension field added to a node of a business object object model; and

modifying a schema of a search engine index based on the extension field and before receiving an instruction to add the extension field to a search view.

2. A method according to claim 1, wherein modifying the schema of the search engine index comprises:

modifying the schema of the search engine index based on the extension field and before receiving data of an instance of the extension field to store in the search engine index.

3. A method according to claim 1, wherein modifying the schema of the search engine index comprises:

determining the schema of the search engine index;

determining a difference between the schema and a target schema of the search engine index based on the extension field; and

modifying the schema of the search engine index to the target schema based on the difference.

4. A method according to claim 1, further comprising:

generating a new replication structure based on the extension field and before receiving an instruction to add the extension field to a search view.

5. A method according to claim 4, wherein generating the new replication structure comprises:

generating the new replication structure before receiving data of an instance of the extension field to store in the search engine index.

6. A method according to claim 4, further comprising writing the new replication structure to a cache memory before receiving an instruction to add the extension field to a search view.

7. A method according to claim 6, wherein the replication structure includes tenant-independent replication metadata and tenant-specific replication metadata corresponding to two or more tenants, and wherein the cache memory is shared among the two or more tenants.

8. A computer-readable medium having stored thereon program code, the program code executable by a computer to:

receive an indication of an extension field added to a node of a business object object model; and

modify a schema of a search engine index based on the extension field and before receiving an instruction to add the extension field to a search view.

9. A medium according to claim 8, wherein the program code executable by a computer to modify the schema of the search engine index comprises program code executable by a computer to:

modify the schema of the search engine index based on the extension field and before receipt of data of an instance of the extension field to store in the search engine index.

10. A medium according to claim 8, wherein the program code executable by a computer to modify the schema of the search engine index comprises program code executable by a computer to:

determine the schema of the search engine index;

determine a difference between the schema and a target schema of the search engine index based on the extension field; and

modify the schema of the search engine index to the target schema based on the difference.

11. A medium according to claim 8, the program code further executable by a computer to:

generate a new replication structure based on the extension field and before receiving an instruction to add the extension field to a search view.

12. A medium according to claim 11, wherein the program code executable by a computer to generate the new replication structure comprises program code executable by a computer to:

generate the new replication structure before receiving data of an instance of the extension field to store in the search engine index.

13. A medium according to claim 11, the program code further executable by a computer to:

write the new replication structure to a cache memory before receiving an instruction to add the extension field to a search view.

14. A medium according to claim 13, wherein the replication structure includes tenant-independent replication metadata and tenant-specific replication metadata corresponding to two or more tenants, and wherein the cache memory is shared among the two or more tenants.

15. A system comprising:

an extensibility framework to transmit an indication of an extension field added to a node of a business object object model; and

a replication framework to;

receive the indication from the extensibility framework; and

modify a schema of a search engine index based on the extension field and before receipt of an instruction to add the extension field to a search view.

16. A system according to claim 15, wherein modification of the schema of the search engine index comprises:

modification of the schema of the search engine index based on the extension field and before receipt of data of an instance of the extension field to store in the search engine index.

17. A system according to claim 15, wherein modification of the schema of the search engine index comprises:

determination of the schema of the search engine index;

determination of a difference between the schema and a target schema of the search engine index based on the extension field; and

modification of the schema of the search engine index to the target schema based on the difference.

18. A system according to claim 15, further comprising:

a view builder to issue the instruction to add the extension field to the search view.

19. A system according to claim 18,

a cache memory,

wherein the replication framework is to generate a new replication structure based on the extension field and to write the new replication structure to the cache memory before receiving an instruction to add the extension field to the search view.

20. A system according to claim 19, wherein the replication structure includes tenant-independent replication metadata and tenant-specific replication metadata corresponding to two or more tenants, and wherein the cache memory is shared among the two or more tenants.