Mercurial > lada > lada-server

annotate src/main/java/de/intevation/lada/data/LOrtRepository.java @ 366:567ce7697fc7 0.5

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Code documentation.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 10 Sep 2013 15:55:54 +0200
parents 0de24f5e7c01
children ea4d2d685f32
rev   line source
108
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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 import java.util.Map;
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5
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6 import javax.ejb.EJBTransactionRolledbackException;
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7 import javax.enterprise.context.ApplicationScoped;
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8 import javax.inject.Inject;
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9 import javax.inject.Named;
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10 import javax.persistence.EntityExistsException;
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11 import javax.persistence.EntityManager;
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12 import javax.persistence.TransactionRequiredException;
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13 import javax.persistence.criteria.CriteriaBuilder;
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14 import javax.persistence.criteria.CriteriaQuery;
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15 import javax.persistence.criteria.Root;
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16
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17 import de.intevation.lada.manage.Manager;
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18 import de.intevation.lada.model.LOrt;
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19 import de.intevation.lada.rest.Response;
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20 import de.intevation.lada.validation.ValidationException;
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21 import de.intevation.lada.validation.Validator;
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22
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23 /**
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24 * This Container is an interface to read, write and update LOrt objects.
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25 *
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26 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
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27 */
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28 @ApplicationScoped
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29 @Named("lortrepository")
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30 public class LOrtRepository implements Repository
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31 {
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32 /**
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33 * The entitymanager managing the data.
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34 */
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35 @Inject
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36 private EntityManager em;
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37
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38 /**
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39 * The validator used for LOrt objects.
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40 */
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41 @Inject
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42 @Named("lortvalidator")
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43 private Validator validator;
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44
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45 /**
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46 * The data manager providing database operations.
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47 */
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48 @Inject
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49 @Named("datamanager")
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50 private Manager manager;
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51
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52 @Override
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53 public EntityManager getEntityManager() {
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54 return this.em;
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55 }
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56
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57 /**
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58 * Filter object list by the given criteria.
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59 *
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60 * @param filter The query filter.
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61 * @return Response object.
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62 */
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63 public <T> Response filter(CriteriaQuery<T> filter) {
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64 List<T> result = em.createQuery(filter).getResultList();
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65 return new Response(true, 200, result);
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66 }
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67
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68 /**
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69 * Get all objects of type <link>clazz</link>from database.
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70 *
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71 * @param clazz The object type.
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72 * @return Response object.
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73 */
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74 public <T> Response findAll(Class<T> clazz) {
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75 CriteriaBuilder builder = em.getCriteriaBuilder();
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76 CriteriaQuery<T> criteria = builder.createQuery(clazz);
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77 Root<T> member = criteria.from(clazz);
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78 criteria.select(member);
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79 List<T> result = em.createQuery(criteria).getResultList();
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80 return new Response(true, 200, result);
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81 }
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82
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83 /**
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84 * Find a single object identified by its id.
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85 *
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86 * @param clazz The object type.
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87 * @param id The object id.
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88 * @return Response object.
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89 */
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90 public <T> Response findById(Class<T> clazz, String id) {
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91 T item = em.find(clazz, id);
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92 if (item == null) {
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93 return new Response(false, 600, null);
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94 }
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95 return new Response(true, 200, item);
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96 }
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97
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98 /**
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99 * Validate and persist a new LOrt object.
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100 *
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101 * @param object The new object
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102 * @return Response object.
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103 */
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104 public Response create(Object object) {
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105 if (!(object instanceof LOrt)) {
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106 return new Response(false, 600, object);
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107 }
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108 LOrt ort = (LOrt)object;
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109 Response response = new Response(true, 200, ort);
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110 // Try to save the new LOrt.
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111 try {
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112 Map<String, Integer> warnings = validator.validate(ort, false);
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113 manager.create(ort);
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114 response.setWarnings(warnings);
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115 return response;
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116 }
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117 catch (EntityExistsException eee) {
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118 response.setSuccess(false);
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119 response.setMessage(601);
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120 }
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121 catch (IllegalArgumentException iae) {
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122 response.setSuccess(false);
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123 response.setMessage(602);
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124 }
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125 catch (TransactionRequiredException tre) {
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126 response.setSuccess(false);
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127 response.setMessage(603);
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128 }
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129 catch (ValidationException ve) {
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130 response.setSuccess(false);
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131 response.setMessage(604);
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132 response.setErrors(ve.getErrors());
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133 response.setWarnings(ve.getWarnings());
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134 }
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135 catch (EJBTransactionRolledbackException te) {
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136 response.setSuccess(false);
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137 response.setMessage(604);
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138 }
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139 return response;
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140 }
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141
220
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142 /**
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143 * Validate and update a LOrt object.
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144 *
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145 * @param object The object to update.
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146 * @return Response object.
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147 */
131
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148 public Response update(Object object) {
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149 if (!(object instanceof LOrt)) {
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150 return new Response(false, 600, object);
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151 }
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152 LOrt ort = (LOrt)object;
123
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153 Response response = new Response(true, 200, ort);
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154 // Try to update a LOrt object.
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155 try {
260
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156 Map<String, Integer> warnings = validator.validate(ort, true);
123
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157 manager.update(ort);
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158 response.setWarnings(warnings);
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159 return response;
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160 }
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161 catch (EntityExistsException eee) {
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162 response.setSuccess(false);
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163 response.setMessage(601);
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164 }
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165 catch (IllegalArgumentException iae) {
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166 response.setSuccess(false);
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167 response.setMessage(602);
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168 }
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169 catch (TransactionRequiredException tre) {
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170 response.setSuccess(false);
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171 response.setMessage(603);
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172 }
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173 catch (ValidationException ve) {
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174 response.setSuccess(false);
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175 response.setMessage(604);
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176 response.setErrors(ve.getErrors());
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177 response.setWarnings(ve.getWarnings());
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178 }
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179 catch (EJBTransactionRolledbackException te) {
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180 response.setSuccess(false);
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181 response.setMessage(604);
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182 }
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183 return response;
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184 }
191
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185
220
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186 /**
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187 * Delete a LOrt object.
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188 *
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189 * @param object The object to delete.
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190 * @return Response object.
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191 */
191
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192 public Response delete(Object object) {
219
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193 if (!(object instanceof LOrt)) {
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194 return new Response(false, 602, null);
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195 }
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196 LOrt ort = (LOrt)object;
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197 Response response = new Response(true, 200, null);
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198 try {
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199 manager.delete(ort);
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200 }
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201 catch (IllegalArgumentException iae) {
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202 response.setSuccess(false);
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203 response.setMessage(602);
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204 }
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205 catch (TransactionRequiredException tre) {
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206 response.setSuccess(false);
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207 response.setMessage(603);
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208 }
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209 return response;
191
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210 }
108
03df43fdd359 Added repository for LOrt and changed member 'ort' to 'ortId' in LOrt.
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parents:
diff changeset
211 }
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