Blackberry - data persistence O.S 4.5

Question

I am new to blackberry development. I want to do data manipulation (CRUD) for a small project. Can you help me understand different options that can be used for blackberry d

Answer 1

I tried this at work.

This is a library to help with persistent object.

It has a lot of integrated functions like binary tree, sorting, etc...

It's pretty fast based on the test I've done, and if you are going to sell your software, the licenses price are low.

Your other option is Sybase UltraLiteJ, but I's pretty dam slow, but it supports SQL language.

Or you code yourself a nice implementation based on the BlackBerry Persistence Object that you could use in your other apps.

Answer 2

We need to read and commit whole persistent object, ex. using Vector or LongHashtableCollection if we need to read one element we will have to read all of them, if you need to add/delete/modify we need to read and commit whole collection.

See also SO - Blackberry - application settings save/load