Realm ORM: how to deal with Maps?

Question

I am creating an Android app and I need to persist a Map. I\'ve just started to use Realm ORM, as it supports one-to-one and one-to-many,

Answer 1

As you notice, Realm doesn't yet support maps: https://github.com/realm/realm-java/issues/759

You could use the model classes:

class MyData extends RealmObject {
    private RealmList myMap;
}

class MyMapEntry extends RealmObject {
    private String key;
    private MyClass value;
}

Say you have a MyData object called myData and you wish to fetch the value associated with myKey, the query MyClass myClass = myData.getMyMap().where().equalTo("key", myKey).firstFirst() might be useful.