DaoCompat: greenDAO on ObjectBox

Using greenDAO? Keep the greenDAO API and use ObjectBox instead of SQLite for an extra boost. ObjectBox is a superfast object-oriented database with strong relation support.

DaoCompat = greenDAO - SQLite + ObjectBox

Using DaoCompat, you can easily switch to ObjectBox. Of course, this depends on your use of SQL/SQLite features because ObjectBox is a NoSQL database.

Gradle setup

You should start with the basic ObjectBox set up: check its GitHub page and intro. Additionally, you need to enable the objectbox.daoCompat flag via annotation processor options, and add DaoCompat as a dependency. In the end, your app build.gradle should have those additions:

apply plugin: 'io.objectbox' // after applying Android plugin

android {
    defaultConfig {
         javaCompileOptions {
            annotationProcessorOptions {
                arguments = ['objectbox.daoCompat': 'true']
            }
        }
    }
}

dependencies {
    compile "org.greenrobot:objectbox-daocompat:1.1.0"
}

First steps

To create the greenDAO-like DaoSession, you need an instance of BoxStore from ObjectBox. You typically initialize those objects once for your app, e.g. in onCreate in your Application class:

boxStore = MyObjectBox.builder().androidContext(this).build();
session = new DaoSession(boxStore);

With the DaoSession you are already in your well-known greenDAO API territory. For example, you can get DAOs using session.getMyEntityDao() and then call methods like insert(...) or load(...).

Links

ObjectBox DaoCompat Documentation

greenDAO

ObjectBox

License

Copyright (C) 2011-2017 Markus Junginger, greenrobot (http://greenrobot.org). All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.