October 2003
Intermediate to advanced
480 pages
8h 20m
English
Content preview from Enterprise J2ME™: Developing Mobile Java™ ApplicationsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 14. Access Backend Databases
CHAPTER OVERVIEW
Why Remote Database?
Remote Database Access Schemes
The Oracle J2ME SQL SDK
Legacy Applications
Using Simplicity for Legacy Databases
In Chapter 13, we discussed how mobile applications keep themselves updated via synchronization with backend databases. However, synchronization is not efficient when we deal with frequent (real-time) updates. For many applications, we also need ways to access the remote back end directly. Direct access and synchronization functionalities can coexist in the same application and complement each other. On the CDC or PersonalJava platforms, we can rely on the standard JDBC APIs. But on the CLDC/MIDP platforms, the only option is HTTP proxy servers. In this chapter, we ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.