gistfile1.java

// getter/setter ommited 
class A extends RealmObject {
    @PrimaryKey
    private String name;
}
class B extends RealmObject {
    @PrimaryKey
    private String name;
    private A a;
}


void do() {
    A a = new A();
    a.setName("a");

    B b = new B();
    b.setName("b");
    b.setOne(a);

    B c = new B();
    c.setName("c");
    c.setOne(a);


    realm = Realm.getInstance(…);
    realm.beginTransaction();
    realm.copyToRealm(b);
    realm.copyToRealm(c);
    realm.commitTransaction();

    realm.close();
}

// if we use copyToRealmOrUpdate(), doesn't this cause the 'c' object to UPDATE the existing 'a' (inserted by 'b')? 
// If we don't, we get a PK violation