I need to do a simple query in Realm, retrieve a list of MyModel object and later use it somewhere else in my app. It happens that once I query Realm, each object has null values, but the toString returns the expected values.
Model:
@RealmClass
public class MyModel extends RealmObject implements Serializable {
public static final String KEY_MODEL = "key_myModel";
@PrimaryKey
private int id;
private String myStr;
private int myInt;
//.... getters and setters
@Override
public String toString() {
return "id = " + id
+ "\nmyStr = " + myStr
+ "\nmyInt = " + myInt;
}
}
How do I store the value:
public static void storeModel(MyModel model) {
Realm realm = Realm.getDefaultInstance();
realm.beginTransaction();
realm.copyToRealm(model);
realm.commitTransaction();
}
How do I retrieve the objects:
public static RealmList<MyModel> getNewElementsFromIndex(int indexFrom) {
Realm realm = Realm.getDefaultInstance();
RealmResults<MyModel> allValues = realm.where(MyModel).greaterThan("id", indexFrom).findAll();
RealmList<MyModel> finalList = new RealmList<MyModel>();
finalList.addAll(allValues.subList(0, allValues.size()));
return finalList;
}
When i call getNewElementsFromIndex(value) i get a list of item, but all items in this list have the parameter myStr = null and myInt = 0.
What am I doing wrong?
For managed realm objects, data is not copied to the fields, you obtain them through the proxy getter/setter calls.
Therefore, the fact that fields are null and toString() shows the values is completely expected and well-documented behavior.
To see the values, you have to add watches for the getter methods.
See the documentation.