Examples of JVM and Android applications written in Java and Kotlin using the Java SDK for ObjectBox, the superfast object-oriented database.

For examples in other languages, see the GitHub repository for that language.

• java-main: a note taking command-line application that shows how to define the data model, create a store and put and get data.
• java-main-maven: the same app, but using a Maven project.
• kotlin-main: the same app, but written in Kotlin.

• android-app-kotlin: a note taking app that shows how to define the data model, indexes and relations, create a store, put and get data, use Admin UI and create unit tests.
• android-app: a more basic variant of the above written in Java.
• android-app-relations: shows how to use all types of available relations.
• android-app-arch: shows how to use ObjectBoxLiveData with ViewModel and ObjectBoxDataSource with the Paging library.
• android-app-multimodule: shows how to use a separate database in each feature module.
• android-app-multiprocess: shows how to use ObjectBox from a different process.

• java-main-vector-search: a cities and coordinates command-line application that shows how to do on-device ANN vector search.

See the dedicated Sync examples repository.

• android-app-daocompat: shows how to use the DAOcompat compatibility layer to help migrate from greenDAO.
• java-performance: a command-line application that runs performance tests with ObjectBox.

If the MyObjectBox class can not be found, make sure to build the project first. This and other ObjectBox related classes are generated when building the project.

If you are looking for help with how to use ObjectBox see our documentation.

If you found an issue or have feedback about these examples feel free to submit an issue in the Java SDK repository.

ObjectBox Documentation

ObjectBox Features

ObjectBox Java SDK repository

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