SessionFacade


1   /**
2    * EasyBeans
3    * Copyright (C) 2006 Bull S.A.S.
4    * Contact: easybeans@objectweb.org
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public
8    * License as published by the Free Software Foundation; either
9    * version 2.1 of the License, or any later version.
10   *
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   *
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19   * USA
20   *
21   * --------------------------------------------------------------------------
22   * $Id: SessionFacade.java 327 2006-04-14 08:23:38Z benoitf $
23   * --------------------------------------------------------------------------
24   */
25  
26  package org.objectweb.easybeans.examples.entitybean;
27  
28  import javax.ejb.Remote  ;
29  import javax.ejb.Stateless  ;
30  import javax.persistence.EntityManager;
31  import javax.persistence.PersistenceContext;
32  
33  /**
34   * Simple stateless bean acting as session facade bean.
35   * @author Florent Benoit
36   */
37  @Stateless  
38  @Remote  (SessionFacadeRemote.class)
39  public class SessionFacade implements SessionFacadeRemote {
40  
41      /**
42       * Entity manager used by this session bean.
43       */
44      @PersistenceContext
45      private EntityManager entityManager = null;
46  
47      /**
48       * Adds an employee.
49       * @param id of the employee
50       * @param name of the employee
51       */
52      public void addEmployee(final int id, final String   name) {
53          Employee employee = new Employee();
54          employee.setId(id);
55          employee.setName(name);
56          entityManager.persist(employee);
57      }
58  
59      /**
60       * Finds the Employee with its given id.
61       * @param id to find the employee
62       * @return employee associated to the given id
63       */
64     public Employee findEmployee(final int id) {
65         return entityManager.find(Employee.class, Integer.valueOf(id));
66      }
67  
68  }
69
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