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Inheritance / PolymorphismΒ #761

@cmelchior

Description

@cmelchior

A highly request feature is polymorphism. Mostly for use in ListAdapters, but a lot of other scenarios exists.

We need support for the following:

  • Abstract RealmObject classes
  • Query support

Example

public abstract Animal extends RealmObject {
  private String name;
}

public class Dog extends Animal {
  private boolean willPlayCatch;
}

public class Spider extends Animal {
  private boolean isScary;
}

// Following should be possible
RealmResults<Animal> animals = realm.where(Animal.class).equalsTo("name","Foo").findAll();
String name = animals.get(0).getName();

RealmResults<Dog> dogs = realm.where(Dog.class).equalsTo("name","Foo").and().equalsTo("willPlayCatch", true).findAll();
String name = dogs.get(0).getName();

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