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Start your free trialThomas Salai
4,964 Pointsretrieving-data-with-hibernate Challenge Task2 compiler error
I dont know why I got this compiler error..
./LanguageRepository.java:13: error: cannot find symbol
Session session = sessionFactory.openSession();
^
symbol: variable sessionFactory
location: class LanguageRepository
Note: ./LanguageRepository.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
import java.util.List;
import java.util.ArrayList;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Criteria;
public class LanguageRepository {
// Assume sessionFactory has been initialized properly by its default constructor
@SuppressWarnings("unchecked")
public List<Language> findAll() {
// Open session
Session session = sessionFactory.openSession();
// TODO: Create Criteria
Criteria criteria = session.createCriteria(Language.class);
// TODO: Get a list of all persisted Language entities
List<Language> languages = criteria.list();
// Close the session
session.close();
// Return the list
return languages;
}
}
1 Answer
Joe Rowe
2,225 PointsThis error occurs as your class does not contain a variable named "sessionFactory".
To resolve this, you need to initialise a SessionFactory. The best place to do this is under the comment reading "Assume sessionFactory has been initialized properly by its default constructor" - that is to say, assume that by using the default SessionFactory constructor that a SessionFactory will be initialised correctly.
With this done, your class will contain a SessionFactory object stored as "sessionFactory" and you will then be able to call the openSession() method on that object!
Michael Walker
45,428 PointsMichael Walker
45,428 PointsUm, in other words just add this line
private static final SessionFactory sessionFactory = new SessionFactory();