What is the most efficient way to store long list of Objects in Realm?

Question

I\'m trying to compare Realm with Snappydb (This is my repo for those who would like to have a look at benchmark). I guess my way is wrong,

Answer 1

Your original solution saves 10000 objects in 10000 transactions and creates 10000 objects for it, so that's pretty much the worst possible approach.

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Technically the right way should be this:

public void storeBookings(final List<Booking> bookings) {
    mRealm.executeTransaction(new Realm.Transaction() {
        @Override
        public void execute(Realm realm) {
            realm.insertOrUpdate(bookings);
        }
    });
}

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In most cases when the saved object is not the same as the original object, what I do is this:

public void storeBookings(final List<Booking> bookings) {
    mRealm.executeTransaction(new Realm.Transaction() {
        @Override
        public void execute(Realm realm) {
            RealmBook realmBook = new RealmBook();
            for(Booking booking : bookings) {
                realmBook = mapper.toRealm(booking, realmBook); // does not create new instance
                realm.insertOrUpdate(realmBook);
            }
        }
    });
}

This solution uses 1 detached object to map the content of the list.