Update query doesn't update the table

Question

With the following method I am trying to update a column named accesstoken. There is no exception,there is no error but the table's column doesn't get updated. What could be the reason ? Am I leaving something ?

public void updateAccessToken(int id , String accessToken) {

    try {
        Session session = new HVR().getSession();
        System.out.println("ID :--> " + id);
        String hql = "UPDATE UCred set accessToken ='" + accessToken + "'" + " WHERE id ='" + id + "'";
        Query query = session.createQuery(hql);
        query.executeUpdate();
        session.close();
    }catch(Exception exc) {
        exc.printStackTrace();
    }
}

Note: Initially accesstoken is set to null.

Answer 1

If you manage your own transaction (i.e. not managed by containers like Spring, JTA), then you need to begin and end the transaction.

Using

session.getTransaction().begin();

and

session.getTransaction().commit(); 

Then your code would be like this,

public void updateAccessToken(int id , String accessToken) {

    try {
        Session session = new HVR().getSession();

session.getTransaction().begin();
        System.out.println("ID :--> " + id);
        String hql = "UPDATE UCred set accessToken ='" + accessToken + "'" + " WHERE id ='" + id + "'";
        Query query = session.createQuery(hql);
        query.executeUpdate();

session.getTransaction().commit();

        session.close();
    }catch(Exception exc) {
        exc.printStackTrace();
    }
}

Answer 2

IS it because you're enclosing id in quotes, e.g.

" WHERE id ='" + id + "'"

?