gistfile1.txt

    @Override
    public <T extends RealmModel> Observable<T> get(Class<T> clazz, String primaryKey,
            int pkValue) {
        return Observable.fromCallable(() -> {
            Realm realm = getRealmInstance();
            T object = realm.copyFromRealm(realm.where(clazz)
                    .equalTo(primaryKey, pkValue)
                    .findFirst());
            realm.close();
            return object;
        });
    }