Skip to main content

ORMLite with Android

This tutorial will guide you how to implement ORMLite (a very light weight, open source, Android compatible ORM) in an Android project. Android supports SQLite database and writing database queries can create a lot of boilerplate code and can be really difficult to debug. I was looking for some sort of ORM library for android. I came around few of them. I decided to give ORMLite a shot. The library is very stable and uses annotations. It was really easy to implement everything so I decided to stick with it.
What are the benefits you may achieve compare to conventional way of using SQLite from Android. You will learn to build an app with ORMLite that allows you to store and view data from a database. So lets begin…

Model

To use ORMLite, you first need to create your model classes. A sample model class would like this.
Open below link to view source

Database Helper

It is the most important file from the ORMLite implementation point of view, which consists the complete logic of database file creation, accessibility etc. Below are the key points of this file:

  • Database Name & version:  Keep the database name and version as shown in the example
  • onCreate(): This method should include all the table creation statements and other first time configuration logics.
  • onUpgrade(): onCreate() method executes only once i.e. when the application is running for the first time, so in case application needs any update in the database (e.g. creation of new table, insertion of a new column in an existing table etc.), this method needs to incorporate all those logics, so application doesn’t crash after getting upgraded.
  • DAO: DAOs are the one of the most important components in ORMLite ecosystem as those are the only handle to access database tables. So, every table should expose a DAO, so application can access this table when required.
Open below link to view source

Comments

  1. Med Mahdi Maarouf24 April 2019 at 06:21

    short and easy to understand , thank you for this great work :)

    ReplyDelete
  2. Zoe Martin17 June 2025 at 04:01

    Every app development project is unique, and so are its costs. Sunrise Technologies' App Development Cost Calculator provides a customized cost estimate based on your app's specific requirements.Estimate Your Mobile App Development Costs with Sunrise Technologies

    ReplyDelete
  3. asknoahbrown17 June 2025 at 05:15

    top AI companies USA
    Looking for the top AI companies in the USA to elevate your business with intelligent solutions? This curated guide from Sunrise Technologies showcases the leading AI development firms transforming industries through innovation, automation, and smart data analytics. Whether you're a startup or an enterprise, these companies offer cutting-edge services in machine learning, natural language processing, predictive analytics, and more. Explore how these AI experts are driving business efficiency, customer engagement, and competitive growth across sectors. If you're planning to integrate AI into your digital roadmap, this list is the perfect starting point to discover the most trusted and impactful AI solution providers in the U.S.

    ReplyDelete
  4. Miawilliams17 June 2025 at 05:34

    Looking for a reliable mobile app development company in Australia? Sunrise Techs builds cutting-edge applications using Flutter, React Native, and native technologies. We focus on seamless UX, performance, and innovation to help your business thrive in the digital space.
    Explore our services at Mobile app development company in australia

    ReplyDelete
  5. Zoe Martin20 June 2025 at 05:13

    App developers in Perth are truly raising the bar! Their ability to blend innovative design with user-centric functionality makes them a top choice for startups and established businesses alike.
    Best App Developers Perth

    ReplyDelete
  6. asknoahbrown20 June 2025 at 05:27

    top AI companies Australia
    ​Explore the top AI companies in Australia​ known for delivering cutting-edge artificial intelligence solutions across industries. This list features leading AI development firms specializing in machine learning, automation, and data-driven innovations.

    ReplyDelete
  7. asknoahbrown21 June 2025 at 03:29

    ChatGPT app development cost
    Discover the real ChatGPT app development cost in this in-depth guide that outlines the essential components involved in building a high-functioning AI chatbot. From NLP integration and cloud infrastructure to UI/UX and post-launch support, understand how these factors influence overall AI chatbot app pricing.

    ReplyDelete
  8. Zoe Martin21 June 2025 at 04:19

    Exceptional achievements! It's clear your company understands both the potential and responsibility of AI. Looking forward to seeing how your AI-driven applications continue to transform industries.
    Best AI Application Development Company

    ReplyDelete

Post a Comment

Popular posts from this blog

Using Retrofit 2.x as REST client

This tutorial explains the usage of the Retrofit library as REST client. What is Retrofit? Retrofit is a REST Client for Android and Java by Square. It makes it relatively easy to retrieve and upload JSON (or other structured data) via a REST based webservice. Using Retrofit To work with Retrofit you need basically three classes. Model class which is used to map the JSON data to Interfaces which defines the possible HTTP operations Retrofit.Builder class - Instance which uses the interface and the Builder API which allows defining the URL end point for the HTTP operation. Every method of an interface represents one possible API call. It must have a HTTP annotation (GET, POST, etc.) to specify the request type and the relative URL. The return value wraps the response in a Call object with the type of the expected result. Add these two lines to the build.gradle file: compile 'com.squareup.retrofit2:retrofit:2.3.0' compile 'com.squareup.retrofit2:con...
4 comments
Read more

How to finish all activities in your Android application through simple call

Hi, Maybe you had some problem which I can describe and show the way to fix it. Actually, problem is a closing all your Android application’s Activities through simple call. There are many ways to fix this. I want to show you one of them. Before starting I want to ask you something. Please email me or post a comment for this post if you find better and more flexible way to close all Android application's activities. I will be appreciative you! Below you can download the sample project. This project contains 3 (three) activities and ONE abstract Activity. All Activities in this sample project extended this abstract Activity class. This Activity extended Activity class from Android API. The most interesting contains in this abstract Activity. Here the source: package com.ravi; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; public class AppBas...
2 comments
Read more