UniversityRepositry

gistfile1.txt

public class UniversityRepository implements IUniversityRepository {

    @Override
    public void addUniversity(University university, OnAddUniversityCallback callback) {
        Realm realm = Realm.getInstance(SimpleRealmApp.getInstance());
        realm.beginTransaction();
        University u = realm.createObject(University.class);
        u.setId(UUID.randomUUID().toString());
        u.setName(university.getName());
        realm.commitTransaction();

        if (callback != null)
            callback.onSuccess();
    }

    @Override
    public void deleteUniversityById(String Id, OnDeleteUniversityCallback callback) {
        Realm realm = Realm.getInstance(SimpleRealmApp.getInstance());
        realm.beginTransaction();
        University university = realm.where(University.class).equalTo(RealmTable.ID, Id).findFirst();
        university.removeFromRealm();
        realm.commitTransaction();

        if (callback != null)
            callback.onSuccess();
    }

    @Override
    public void deleteUniversityByPosition(int position, OnDeleteUniversityCallback callback) {
        Realm realm = Realm.getInstance(SimpleRealmApp.getInstance());
        realm.beginTransaction();
        RealmQuery query = realm.where(University.class);
        RealmResults results = query.findAll();
        results.remove(position);
        realm.commitTransaction();

        if (callback != null)
            callback.onSuccess();
    }

    @Override
    public void getUniversityById(String id, OnGetUniversityByIdCallback callback) {
        Realm realm = Realm.getInstance(SimpleRealmApp.getInstance());
        University result = realm.where(University.class).equalTo(RealmTable.ID, id).findFirst();

        if (callback != null)
            callback.onSuccess(result);
    }

    @Override
    public void getAllUniversities(OnGetAllUniversityCallback callback) {
        Realm realm = Realm.getInstance(SimpleRealmApp.getInstance());
        RealmQuery query = realm.where(University.class);
        RealmResults results = query.findAll();

        if (callback != null)
            callback.onSuccess(results);
    }

}