android - SQLite + Object oriented programming -

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creating android financial manager application using of sqlite.
question how deal database in terms of object oriented programming?
want write information purchase database.
should i:
1) user information edittexts, put object "purchase", contains fields: productname, ammount, price...
, put information object database?
2) or put data edittexts directly straight database?
3) way?

i've used many different frameworks available out there, sqlite ormlite. but, in terms of speed, there no alternative realm.io. can create data models , define them realm objects. rest easy, can read, write , query among data models created.

if want know, better way use sqlite, can check this article


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