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