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6 package com.edf.gde.ejb;
8 import javax.ejb.Stateless;
9 import javax.ejb.LocalBean;
10 import javax.persistence.EntityManager;
11 import javax.persistence.PersistenceContext;
19 public class StudyDAO {
20 @PersistenceContext(unitName = "GDE-ejbPU")
21 private EntityManager em;