CODEWITHSUNDEEP
androidobjectrealm
Jenya Kirmiza
Jenya Kirmiza

Reputation: 711

Using realm for complex objects android

I started using realm. it seemed to work fine, but I have some questions. When I use realm for simple object with primitive fields, everything is ok. But I'm facing issues using it for complex objects.

For example I have a class Passenger. It has several fields

Segment segment;
Documents documents;
....

Each field also has sub objects. Segment class

Flight flight;
Arrival arrival;
int pnrRequest;

So as I understand I will have several tables and I need one-to-many relations to connect this tables. What i want is to store passenger list inside database.

The problem is that I already have this classes as a model, but they dont extend RealmObject. I don't want to have duplicate classes one for model and one for database. Is there a way to avoid duplication of files and conversion from one model to another?

Upvotes: 1

Views: 1568

Answers (2)

Sergei Bubenshchikov
Sergei Bubenshchikov

Reputation: 5371

According to documentation it's posible:

An alternative to extending the RealmObject base class is implementing the RealmModel interface and adding the @RealmClass annotation.

Upvotes: 1

Christian Melchior
Christian Melchior

Reputation: 20126

Realm requires that all models that should be persisted must extend RealmObject or implement the interface RealmModel (see https://realm.io/docs/java/latest/#realmmodel-interface). If neither of these approaches work for you, you will need to duplicate the class and have conversion methods between them.

Upvotes: 1

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