In my previous post where I showed how to update data objects in the persistent storage, my class for the data object looked like this:
public class Person
public int age;
public String name;
public Date birthdate;
Notice the class does not include any fields/properties for objectId , created or updated fields. Nevertheless, the call to save the updated object knew that it is already stored in Backendless. This is possible as a result of a feature that lets you declare any field or property your app might need. Also, notice the class neither implements any special interfaces nor extends any base Backendless classes – a pure data object class.