Question

I will develop an android application with a lot of data (json files with some rows and CSV for graphics data with a lot of rows) , this data change every 5 minutes and replaces all the previous data (or mostly).

What are the best approaches to design this ? I have 2 options:

• Save all the data in a sqlite db, and sync this by a IntentService.

• save the data in json and csv files and replace this every 5 minutes.

Which approach will the best performance?
This considering the time to parse the files, sorting data, the download time and the consistency of data.

any other ideas?

PD:I need a cache system too, in case if i don’t have internet and I need the previous stored data

Answer 1

Sqlite is mostly used when you want data to be saved and used in future. In your case data is changing every 5 minutes so its better to have JSON because every time to make the Database connection store and retrieve after 5 minutes will take some time.

UPDATE:

I also had the same Application in which the data was changing every time. In that case I used Map<K, V> and ArrayList to maintain the values, because as the data is changing everytime I think its not feasible to store the data in Sqlite everytime. It needs much time to perform DB Connection store, retrieve, update the data in Sqlite.