Enterprise J2ME Developing Mobile Java Applications [Electronic resources]

Michael Juntao Yuan

نسخه متنی -صفحه : 204/ 119
نمايش فراداده

Chapter 13. Database Synchronization

CHAPTER OVERVIEW

The Synchronized Application Architecture

PointBase UniSync

The Hub-and-Spoke Synchronization Architecture

IBM DB2e Everyplace

iAnywhere Solutions MobiLink

Oracle9i Mobile Server

The Synchronized Contact Manager

Information aggregation is one of the core functionalities of enterprise information systems. Disconnected mobile databases by themselves are not of much use. On one hand, field data from mobile users must be aggregated and incorporated into the enterprise system; on the other hand, mobile users must rely on the backend to keep up with latest updates. The best way to keep database contents up to date is through synchronization. Mobile database vendors offer proprietary synchronization solutions for their databases. This chapter explains the "disconnected but synchronized" mobile application architecture and discusses innovations from different vendors.