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Java

Posted by Leonardo Diaz
Leonardo Diaz
17,591 Points

the Session's method createCriteria is deprecated, how should I proceed for establishing Class criteria?

/It says I should use JPA criteria, not sure how to use it :(/

@Deprecated Criteria createCriteria(Class persistentClass);

/**
 * Create {@link Criteria} instance for the given class (entity or subclasses/implementors), using a specific
 * alias.
 *
 * @param persistentClass The class, which is an entity, or has entity subclasses/implementors
 * @param alias The alias to use
 *
 * @return The criteria instance for manipulation and execution
 *
 * @deprecated (since 5.2) for Session, use the JPA Criteria
 */

3 Answers

Leonardo Diaz
Leonardo Diaz
17,591 Points
Leonardo Diaz
Leonardo Diaz
17,591 Points

Thank you very much, I already came up with an answer here at https://docs.jboss.org/hibernate/entitymanager/3.5/reference/en/html/querycriteria.html

Ended up this way

private static List<Contact> fetchAllContacts(){
        //Open Session
        Session session = sessionFactory.openSession();

        /* //Deprecated Way
        * Criteria criteria = session.createCriteria(Contact.class);
        * List<Contacts> contacts = criteria.list(); */

        //Get Criteria Builder
        CriteriaBuilder builder = session.getCriteriaBuilder();

        //Create Criteria
        CriteriaQuery<Contact> criteria = builder.createQuery(Contact.class);
        Root<Contact> contactRoot = criteria.from(Contact.class);
        criteria.select(contactRoot);

        //Use criteria to query with session to fetch all contacts
        List<Contact> contacts = session.createQuery(criteria).getResultList();

        //Close session
        session.close();

        return contacts;
    }
hbdc
hbdc
13,725 Points

Cool : )

hbdc
hbdc
13,725 Points
hbdc
hbdc
13,725 Points

I had asked about this a few weeks back.

Chris Ramacciotti

Has suggested a solution for 'Spring with Hibernate' here:

https://github.com/treehouse/giflib-hibernate/commit/f97a2828a466e849d8ae84884b5dce60a66cf412

Take a look.

If you are watching 'Hibernate Basics' that will also work.

Leonardo Diaz
Leonardo Diaz
17,591 Points
Leonardo Diaz
Leonardo Diaz
17,591 Points

LOL!

it was explained in the teacher's notes... I just saw it XD!