System and method of synchronization of internal data cache with wireless device application data repositories

• US 20060259523A1
• Filed: 04/18/2006
• Published: 11/16/2006
• Est. Priority Date: 04/18/2005
• Status: Abandoned Application

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Shenfield, Michael, Vitanov, Kamen, Bibr, Viera, Wallis, Kenneth
• Application Number:
  US11/405,511
• Publication Number:
  US 20060259523A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 12/0804 with main memory updating G06F12/0806 takes precedence
• CPC Class Codes: G06F 12/0875 with dedicated cache, e.g. instruction or stack
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/5683 Storage of data provided by user terminals, i.e. reverse caching

Abstract

A data synchronization system for caching and updating non-component-enabled application data is provided. The data synchronization system comprises a data handle table generation module for generating a table of internal data handles associated with external data repository items, an external data repository interface module for retrieving data from and storing data in an external data repository and an internal repository for storing data items. A method of data synchronization is also provided. The method comprises the steps of generating a table of internal data handles associated with external data repository items, retrieving data from an external data repository, storing data in an internal repository and updating data in the external data repository.

Claims

1. A data synchronization system for caching and updating non-component-enabled application data, the data synchronization system comprising:

a data handle table generation module for generating a table of internal data handles associated with external data repository items;

an external data repository interface module for retrieving data from and storing data in an external data repository; and

an internal repository for storing data items.

2. A method of data synchronization, the method comprising the steps of:

generating a table of internal data handles associated with external data repository items;

retrieving data from an external data repository;

storing data in an internal repository; and

updating data in the external data repository.

3. The method as claimed in claim 2, wherein the step of updating data is performed when a component application is shutdown.

4. The method as claimed in claim 2, wherein the step of updating data is performed when a component application is suspended.

5. The method as claimed in claim 4, further comprising the steps of:

clearing the internal repository; and

regenerating the table of internal data handles associated with external data repository items.

6. The method as claimed in claim 2, wherein the step of retrieving data includes the step of:

retrieving a data item from the external repository on a modification to said data item.

7. The method as claimed in claim 6, further comprising the step of:

retrieving the data item stored in the internal repository on subsequent accesses to said data item.

8. The method as claimed in claim 2, wherein the step of retrieving data includes the step of:

retrieving a data item from the external repository on a first access to said data item.

9. The method as claimed in claim 8, further comprising the step of:

retrieving the data item stored in the internal repository on a second access to said data item.

10. A computer-readable medium storing instructions or statements for use in the execution in a computer of a method of data synchronization, the method comprising the steps of:

generating a table of internal data handles associated with external data repository items;

retrieving data from an external data repository;

storing data in an internal repository; and

updating data in the external data repository.

11. A propagated signal carrier carrying signals containing computer-executable instructions that can be read and executed by a computer, the computer-executable instructions being used to execute a method of data synchronization, the method comprising the steps of:

generating a table of internal data handles associated with external data repository items;

retrieving data from an external data repository;

storing data in an internal repository; and

updating data in the external data repository.