Odata offline cache for mobile device

• US 9,531,830 B2
• Filed: 07/21/2014
• Issued: 12/27/2016
• Est. Priority Date: 07/21/2014
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP SE
• Inventors: Lacasse, Martin, Dev, Nipun, Mall, Sanjeet
• Primary Examiner(s): HUQ, FARZANA B
• Application Number:
  US14/336,498
• Publication Number:
  US 20160021209A1
• Time in Patent Office: 890 Days
• Field of Search: 709/201, 709/213, 709/215, 709/217, 709/219, 709/225, 709/227, 709/236, 709/246
• US Class Current: 1/1
• CPC Class Codes: G06F 16/2365 Ensuring data consistency and integrity
• CPC Class Codes: G06F 16/273 Asynchronous replication or reconciliation
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching

Abstract

A server system may include a request handler and a storage. The request handler may receive at least one request from a program on a user side. The storage may include a first cache and a second cache, storing data in format directly compatible to the program. The first cache stores only data matching to a server. If the at least one request corresponds to a change to the data from the program, then the second cache stores the at least one request and the request handler sends the at least one request to the server for updating the change.

Claims

1. A mobile device for online and offline data communication comprising:

a storage comprising a first cache and a second cache, storing data in format directly compatible to a program on a user side,

wherein the first cache stores only data matching to a server, and

the second cache, which stores at least one request if the at least one request corresponds to a change to the data from the program, receives delta incremental updates from the server and updates the data in the first cache; and

a request handler receiving the at least one request from the program and sending the at least one request that is stored in the second cache to the server for updating the change to the data from the program,

wherein an order of communication of a plurality of requests is determined based on a priority of the plurality of requests.

2. The mobile device of claim 1, wherein the first cache receives updates to the data from the server.

3. The mobile device of claim 1, wherein the second cache stores and queues the at least one request when the mobile device is offline, and the request handler sends the at least one request to the server when the mobile device is online.

4. The mobile device of claim 1, wherein the first cache receives incremental updates to the data from the server when the mobile device is online.

5. The mobile device of claim 1, wherein the format of the data is an internet data format.

6. The mobile device of claim 1, wherein the at least one request is an internet request with a hyperlink and is the same regardless of whether the mobile device is online or offline.

18. The mobile device of claim 1, wherein a parser parses data that is available in the storage.

19. The mobile device of claim 2, wherein the first cache receives updates when the program requests for data that is not stored in the first cache.

7. A method of a mobile device for online and offline data communication, comprising:

storing, by a storage comprising a first cache and a second cache, data in format directly compatible to a program on a user side,

wherein the first cache stores only data matching to a server, and the second cache, which stores at least one request if the at least one request corresponds to a change to the data from the program, receives delta incremental updates from the server and updates the data in the first cache;

receiving, by a request handler, the at least one request from the program; and

sending, by the request handler, the at least one request that is stored in the second cache to the server for updating the change to the data from the program,

wherein an order of communication of a plurality of requests is determined based on a priority of the plurality of requests.

8. The method of claim 7, wherein the first cache receives updates to the data from the server.

9. The method of claim 7, wherein the second cache stores and queues the at least one request when the mobile device is offline, and the request handler sends the at least one request to the server when the mobile device is online.

10. The method of claim 7, wherein the first cache receives incremental updates to the data from the server when the mobile device is online.

11. The method of claim 7, wherein the format of the data is an internet data format.

12. The method of claim 7, wherein the at least one request is an internet request with a hyperlink and is the same regardless of whether the mobile device is online or offline.

20. The method of claim 7, wherein a parser parses data that is available in the storage.

21. The method of claim 8, wherein the first cache receives updates when the program requests for data that is not stored in the first cache.

13. A non-transitory computer readable medium storing program codes executable by a processor of a mobile device for online and offline data communication, to perform:

storing, by a storage comprising a first cache and a second cache, data in format directly compatible to a program on a user side,

wherein the first cache stores only data matching to a server, and the second cache, which stores at least one request if the at least one request corresponds to a change to the data from the program, receives delta incremental updates from the server and updates the data in the first cache;

receiving, by a request handler, the at least one request from the program; and

sending, by the request handler, the at least one request that is stored in the second cache to the server for updating the change to the data from the program,

wherein an order of communication of a plurality of requests is determined based on a priority of the plurality of requests.

14. The non-transitory computer readable medium of claim 13, wherein the first cache receives updates to the data from the server.

15. The non-transitory computer readable medium of claim 13, wherein the second cache stores and queues the at least one request when the mobile device is offline, and the request handler sends the at least one request to the server when the mobile device is online.

16. The non-transitory computer readable medium of claim 13, wherein the first cache receives incremental updates to the data from the server when the mobile device is online.

17. The non-transitory computer readable medium of claim 13, wherein the format of the data is an internet data format.

22. The non-transitory computer readable medium of claim 13, wherein a parser parses data that is available in the storage.

23. The non-transitory computer readable medium of claim 14, wherein the first cache receives updates when the program requests for data that is not stored in the first cache.