Packages 
Package Description
io.objectbox
ObjectBox is an an easy to use, object-oriented lightweight database and a full alternative to SQLite.
io.objectbox.converter  
io.objectbox.exception
Various exceptions thrown by ObjectBox.
io.objectbox.flatbuffers  
io.objectbox.query
Classes related to building a Query or PropertyQuery.
io.objectbox.reactive
Classes to configure a DataSubscription for observing Box or Query changes.
io.objectbox.relation
Classes to manage ToOne and ToMany relations between Entities.
io.objectbox.sync
ObjectBox Sync allows to automatically synchronize local data with a sync destination (e.g.
io.objectbox.sync.internal  
io.objectbox.sync.listener  
io.objectbox.sync.server  
io.objectbox.tree
APIs to interact with tree structures stored in ObjectBox.