RealmGate example

RealmGate.java

import android.content.Context;

import com.blueapron.service.dagger.scopes.AppContext;
import com.blueapron.service.models.NetworkModel;

import java.util.List;

import io.realm.Realm;
import io.realm.RealmConfiguration;
import io.realm.RealmObject;

/**
 * The RealmGate serves as a holder around Realm instances. This makes it easier to inject.
 */
public class RealmGate {

    public RealmGate(@AppContext Context context) {
        Realm.init(context);
        RealmConfiguration config = new RealmConfiguration.Builder()
                // IMPORTANT - this is only OK while in development.
                .deleteRealmIfMigrationNeeded()
                .build();
        Realm.setDefaultConfiguration(config);
    }

    public Portal open() {
        return new Portal(Realm.getDefaultInstance());
    }

    public void upsert(RealmObject local) {
        try (Portal realm = open()) {
            realm.beginTransaction();
            realm.insertOrUpdate(local);
            realm.commitTransaction();
        }
    }

    public void upsert(List<? extends RealmObject> local) {
        try (Portal realm = open()) {
            realm.beginTransaction();
            realm.insertOrUpdate(local);
            realm.commitTransaction();
        }
    }
}