Best practice for storing large amounts of data with J2ME

Question

I am developing a J2ME application that has a large amount of data to store on the device (in the region of 1MB but variable). I can\'t rely on the file system so I\'m stuck

Answer 1

I think the most flexible approach would be to implement your own file system on top of the RMS. You can handle the RMS records in a similar way as blocks on a hard drive and use a inode structure or similar to spread logical files over multiple blocks. I would recommend implementing a byte or stream-oriented interface on top of the blocks, and then possibly making another API layer on top of that for writing special data structures (or simply make your objects serializable to the data stream).

Tanenbaum's classical book on operating systems covers how to implement a simple file system, but I am sure you can find other resources online if you don't like paper.

Answer 2

I'm just starting to code for JavaME, but have experience with old versions of PalmOS, where all data chunks are limited in size, requiring the design of data structures using record indexes and offsets.