Mercurial > lada > lada-server
annotate src/main/java/de/intevation/lada/data/OrtRepository.java @ 366:567ce7697fc7 0.5
Code documentation.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Tue, 10 Sep 2013 15:55:54 +0200 |
parents | f0482fa04e2b |
children | ea4d2d685f32 |
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1 package de.intevation.lada.data; |
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2 |
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3 import java.util.List; |
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4 |
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5 import javax.ejb.EJBTransactionRolledbackException; |
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6 import javax.enterprise.context.ApplicationScoped; |
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7 import javax.inject.Inject; |
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8 import javax.inject.Named; |
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9 import javax.persistence.EntityExistsException; |
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10 import javax.persistence.EntityManager; |
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11 import javax.persistence.TransactionRequiredException; |
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12 import javax.persistence.criteria.CriteriaBuilder; |
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13 import javax.persistence.criteria.CriteriaQuery; |
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14 import javax.persistence.criteria.Root; |
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15 |
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16 import de.intevation.lada.manage.Manager; |
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17 import de.intevation.lada.model.Ort; |
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18 import de.intevation.lada.rest.Response; |
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19 |
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20 /** |
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21 * Repository that allows read, write and update operations on 'Ort' objects. |
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22 * |
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23 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a> |
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24 */ |
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25 @ApplicationScoped |
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26 @Named("ortrepository") |
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27 public class OrtRepository implements Repository |
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28 { |
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29 /** |
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30 * The entitymanager managing the data. |
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31 */ |
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32 @Inject |
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33 private EntityManager em; |
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34 |
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35 /** |
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36 * THe data manager providing database operations. |
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37 */ |
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38 @Inject |
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39 @Named("datamanager") |
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40 private Manager manager; |
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41 |
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42 public EntityManager getEntityManager() { |
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43 return this.em; |
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44 } |
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45 |
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46 /** |
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47 * Filter object list by the given criteria. |
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48 * |
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49 * @param filter The query filter. |
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50 * @return Response object. |
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51 */ |
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52 public <T> Response filter(CriteriaQuery<T> filter) { |
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53 List<T> result = em.createQuery(filter).getResultList(); |
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54 return new Response(true, 200, result); |
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55 } |
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56 |
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57 |
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58 /** |
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59 * Get all objects of type <link>clazz</link>from database. |
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60 * |
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61 * @param clazz The object type. |
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62 * @return Response object |
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63 */ |
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64 public <T> Response findAll(Class<T> clazz) { |
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65 CriteriaBuilder builder = em.getCriteriaBuilder(); |
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66 CriteriaQuery<T> criteria = builder.createQuery(clazz); |
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67 Root<T> member = criteria.from(clazz); |
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68 criteria.select(member); |
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69 List<T> result = em.createQuery(criteria).getResultList(); |
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70 return new Response(true, 200, result); |
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71 } |
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72 |
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73 /** |
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74 * Find a single object identified by its id. |
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75 * |
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76 * @param clazz The object type. |
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77 * @param id The object id. |
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78 * @return Response object. |
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79 */ |
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80 public <T> Response findById(Class<T> clazz, String id) { |
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81 T item = em.find(clazz, id); |
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82 if (item == null) { |
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83 return new Response(false, 600, null); |
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84 } |
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85 return new Response(true, 200, item); |
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86 } |
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87 |
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88 /** |
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89 * Create a new 'Ort' object. |
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90 * |
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91 * @param object The new object. |
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92 * @return Response object. |
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93 */ |
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94 public Response create(Object object) { |
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95 if (!(object instanceof Ort)) { |
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96 return new Response(false, 602, object); |
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97 } |
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98 Ort ort = (Ort)object; |
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99 try { |
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100 manager.create(ort); |
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101 return new Response(true, 200, ort); |
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102 } |
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103 catch(EntityExistsException eee) { |
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104 return new Response(false, 601, ort); |
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105 } |
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106 catch(IllegalArgumentException iae) { |
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107 return new Response(false, 602, ort); |
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108 } |
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109 catch(TransactionRequiredException tre) { |
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110 return new Response(false, 603, ort); |
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111 } |
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112 } |
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113 |
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114 /** |
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115 * Update a 'Ort' object. |
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116 * |
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117 * @param object The object to update. |
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118 * @return Response object. |
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119 */ |
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120 public Response update(Object object) { |
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121 if (!(object instanceof Ort)) { |
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122 return new Response(false, 602, object); |
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123 } |
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124 Ort ort = (Ort)object; |
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125 Response response = new Response(true, 200, ort); |
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126 try { |
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127 manager.update(ort); |
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128 return response; |
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129 } |
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130 catch (EntityExistsException eee) { |
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131 response.setSuccess(false); |
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132 response.setMessage(601); |
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133 } |
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134 catch (IllegalArgumentException iae) { |
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135 response.setSuccess(false); |
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136 response.setMessage(602); |
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137 } |
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138 catch (TransactionRequiredException tre) { |
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139 response.setSuccess(false); |
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140 response.setMessage(603); |
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141 } |
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142 catch (EJBTransactionRolledbackException te) { |
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143 response.setSuccess(false); |
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144 response.setMessage(604); |
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145 } |
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146 return response; |
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147 } |
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148 |
220
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149 /** |
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150 * Delete a 'Ort' object. |
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151 * |
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152 * @param object The object to delete. |
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153 * @return Response object. |
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154 */ |
195
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155 public Response delete(Object object) { |
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156 if (!(object instanceof Ort)) { |
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157 return new Response(false, 602, null); |
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158 } |
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159 Ort ort = (Ort)object; |
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160 Response response = new Response(true, 200, null); |
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161 try { |
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162 manager.delete(ort); |
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163 } |
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164 catch (IllegalArgumentException iae) { |
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165 response.setSuccess(false); |
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166 response.setMessage(602); |
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167 } |
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168 catch (TransactionRequiredException tre) { |
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169 response.setSuccess(false); |
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170 response.setMessage(603); |
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171 } |
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172 return response; |
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173 } |
213
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174 } |