Advance enhancement of secondary persistency for extension field search

• US 9,063,958 B2
• Filed: 07/29/2010
• Issued: 06/23/2015
• Est. Priority Date: 07/29/2010
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP SE
• Inventors: Mller, Martin, Schlarb, Uwe, Wintel, Maic, Bhm, Thilo
• Primary Examiner(s): Alam, Hosain
• Assistant Examiner(s): HARPER, ELIYAH STONE
• Application Number:
  US12/845,910
• Publication Number:
  US 20120030225A1
• Time in Patent Office: 1,790 Days
• Field of Search: 707/607, 707/608, 707/687, 707/752
• US Class Current: 1/1
• 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:

generating a schema of a search engine index based on one or more search views, each of the one or more search views comprising at least one attribute of at least one node of one or more business objects;

receiving an indication of an extension field added to one of the at least one nodes after generation of the schema; and

adding the extension field to the schema of the search engine index before receiving an instruction to add the extension field to a search view;

wherein the adding the extension field to the schema of the search engine index before receiving an instruction to add the extension field to a search view comprises;

adding the extension field to the schema of the search engine index without re-generating the schema of the search engine index based on the one or more search views.

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

adding the extension field to the schema of the search engine index 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 adding the extension field to the schema of the search engine index comprises:

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.

21. A method according to claim 1, wherein the adding the extension field to the schema of the search engine index before receiving an instruction to add the extension field to a search view comprises:

after receiving the indication of the extension field that was added to the one of the at least one nodes after generation of the schema of the search engine index, adding, to the schema of the search engine index, the extension field that was added to the one of the at least one nodes after generation of the schema of the search engine index.

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

generate a schema of a search engine index based on one or more search views, each of the one or more search views comprising at least one attribute of at least one node of one or more business objects;

receive an indication of an extension field added to one of the at least one nodes after generation of the schema; and

adding the extension field to the schema of the search engine index before receiving an instruction to add the extension field to a search view;

wherein the adding the extension field to the schema of the search engine index before receiving an instruction to add the extension field to a search view comprises;

adding the extension field to the schema of the search engine index without re-generating the schema of the search engine index based on the one or more search views.

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

add the extension field to the schema of the search engine index 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 add the extension field to the schema of the search engine index comprises program code executable by a computer to:

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 computer-implemented system comprising:

a search infrastructure to generate a schema of a search engine index based on one or more search views, each of the one or more search views comprising at least one attribute of at least one node of one or more business objects;

an extensibility framework to transmit an indication of an extension field added to one of the at least one nodes after generation of the schema; and

a replication framework to;

receive the indication from the extensibility framework; and

add the extension field to the schema of the search engine index before receipt of an instruction to add the extension field to a search view;

wherein the add the extension field to the schema of the search engine index before receipt of an instruction to add the extension field to a search view comprises;

adding the extension field to the schema of the search engine index without re-generating the schema of the search engine index based on the one or more search views.

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

addition of the extension field to the schema of the search engine index 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 addition of the extension field to the schema of the search engine index comprises:

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.