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Rev | Author | Line No. | Line |
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18 | moos | 1 | package ch.ffhs.webE.dao; |
2 | |||
26 | moos | 3 | import java.util.ArrayList; |
18 | moos | 4 | import java.util.List; |
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6 | import org.hibernate.Session; |
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7 | import org.hibernate.Transaction; |
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8 | |||
9 | import com.googlecode.s2hibernate.struts2.plugin.annotations.SessionTarget; |
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10 | import com.googlecode.s2hibernate.struts2.plugin.annotations.TransactionTarget; |
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11 | import ch.ffhs.webE.domain.*; |
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12 | |||
26 | moos | 13 | public class UserDAOImpl implements UserDAO |
14 | { |
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22 | moos | 15 | |
26 | moos | 16 | @SessionTarget |
17 | Session session; |
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18 | @TransactionTarget |
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19 | Transaction transaction; |
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18 | moos | 20 | |
26 | moos | 21 | /** |
22 | * Creates a list of all the registered users |
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23 | * |
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24 | * @return an ArrayList with all the users - in case of a problem, an empty |
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25 | * list is returned |
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26 | */ |
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27 | @SuppressWarnings("unchecked") |
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28 | @Override |
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29 | public List<User> listUser() |
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30 | { |
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31 | List<User> user = null; |
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32 | try |
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33 | { |
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34 | user = session.createQuery("from User").list(); |
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35 | } |
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36 | catch (Exception e) |
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37 | { |
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38 | e.printStackTrace(); |
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39 | } |
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18 | moos | 40 | |
26 | moos | 41 | //If no user was checked, return an empty list to mitigate null pointer exceptions |
42 | if (user == null) |
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43 | { |
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44 | user = new ArrayList<User>(); |
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45 | } |
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46 | return user; |
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47 | } |
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22 | moos | 48 | |
26 | moos | 49 | /** |
50 | * Executes the query to save the user |
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51 | * |
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52 | * @param User |
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53 | * Domain object to be saved |
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54 | * @return void |
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55 | */ |
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56 | @Override |
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57 | public void saveUser(User user) |
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58 | { |
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59 | try |
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60 | { |
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61 | session.save(user); |
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62 | } |
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63 | catch (Exception e) |
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64 | { |
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65 | transaction.rollback(); |
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66 | e.printStackTrace(); |
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67 | } |
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68 | } |
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22 | moos | 69 | |
26 | moos | 70 | /** |
71 | * Used to delete a user. |
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72 | * |
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73 | * @param int userId |
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74 | */ |
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75 | @Override |
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76 | public void deleteUser(int userId) |
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77 | { |
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78 | try |
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79 | { |
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80 | User user = (User) session.get(User.class, userId); |
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81 | session.delete(user); |
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82 | } |
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83 | catch (Exception e) |
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84 | { |
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85 | transaction.rollback(); |
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86 | e.printStackTrace(); |
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87 | } |
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88 | } |
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22 | moos | 89 | |
26 | moos | 90 | /** |
91 | * Returns a single user with this user name (used for login) |
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92 | * |
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93 | * @param username |
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94 | * : String - entire user name |
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95 | * @return User: Returns a user object if something is found. If not, null |
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96 | * is returned |
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97 | */ |
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98 | public User searchUsername(String username) |
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99 | { |
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100 | User user = null; |
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101 | |||
102 | //Exec query |
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103 | try |
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104 | { |
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105 | user = (User) session |
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106 | .createQuery("FROM User " + "WHERE username = :username") |
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107 | .setParameter("username", username).uniqueResult(); |
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108 | } |
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109 | catch (Exception e) |
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110 | { |
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111 | // TODO: Log error |
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112 | } |
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113 | return user; |
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114 | } |
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18 | moos | 115 | } |