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1
7 package org.jboss.tutorial.joininheritance.bean;
8
9 import java.util.List  ;
10 import javax.ejb.Remote ;
11 import javax.ejb.Stateless ;
12 import javax.persistence.EntityManager;
13 import javax.persistence.PersistenceContext;
14 import javax.persistence.PersistenceContext;
15 import javax.persistence.PersistenceContext;
16
17 @Stateless
18 @Remote (PetDAO.class)
19 public class PetDAOBean implements PetDAO
20 {
21 @PersistenceContext
22 private EntityManager manager;
23
24 public void createDog(String name, double weight, int bones)
25 {
26 Dog dog = new Dog();
27 dog.setName(name);
28 dog.setWeight(weight);
29 dog.setNumBones(bones);
30 manager.persist(dog);
31 }
32
33 public void createCat(String name, double weight, int lives)
34 {
35 Cat cat = new Cat();
36 cat.setName(name);
37 cat.setWeight(weight);
38 cat.setLives(lives);
39 manager.persist(cat);
40 }
41
42 public List findByWeight(double weight)
43 {
44 return manager.createQuery("from Pet p where p.weight < :weight").setParameter("weight", weight).getResultList();
45 }
46 }
47 |
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