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