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SYNCHRONIZATION OF COMPUTER DATABASES USING CACHING AGENTS

  • US 20110029486A1
  • Filed: 10/11/2010
  • Published: 02/03/2011
  • Est. Priority Date: 05/02/2002
  • Status: Active Grant
First Claim
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1. A computer device for synchronization between databases, the device comprising:

  • a first interface for impermanently communicating with a remote server on which a first database is maintained,a second interface for communicating with a removable media device on which a second database is maintained,a third interface for communicating with an external computer device on which a third database is maintained,a synchronization agent which be able to execute synchronization between the first, second and third databases, anda caching agent with associated a persistent store, the caching agent monitors the synchronization between the first, second and third databases to store any new information,wherein, if all databases are present, the synchronization agent obtain information directly from each database in order to update the other database, and,if the computer device and the external computer device are connected with each other and the removable media device is not removed from the computer device during the first computer device is unable to communicate with the first database, the synchronization agent executes synchronization between the second and third databases and the caching agent monitor the synchronization to store any new information into the persistent store, and then, if the computer device is able to communicate with the firs database when the removable media device has been removed from the computer device, the caching agent supplies the new information stored on the persistent store to the first database on the server.

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