Mercurial > lada > lada-server
annotate src/main/java/de/intevation/lada/data/LProbeRepository.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 | c96fcc4dd5fd |
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.ArrayList; |
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4 import java.util.HashMap; |
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5 import java.util.List; |
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6 import java.util.Map; |
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7 |
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8 import javax.ejb.EJBTransactionRolledbackException; |
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9 import javax.enterprise.context.ApplicationScoped; |
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10 import javax.inject.Inject; |
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11 import javax.inject.Named; |
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12 import javax.persistence.EntityExistsException; |
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13 import javax.persistence.EntityManager; |
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14 import javax.persistence.Query; |
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15 import javax.persistence.TransactionRequiredException; |
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16 import javax.persistence.criteria.CriteriaQuery; |
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17 import javax.ws.rs.core.MultivaluedMap; |
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19 import de.intevation.lada.auth.Authorization; |
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20 import de.intevation.lada.manage.Manager; |
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21 import de.intevation.lada.model.LProbe; |
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22 import de.intevation.lada.model.LProbeInfo; |
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23 import de.intevation.lada.rest.Response; |
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24 import de.intevation.lada.validation.ValidationException; |
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25 import de.intevation.lada.validation.Validator; |
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26 |
39 | 27 /** |
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28 * This Container is an interface to read, write and update LProbe objects. |
39 | 29 * |
30 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a> | |
31 */ | |
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32 @ApplicationScoped |
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33 @Named("lproberepository") |
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34 public class LProbeRepository implements Repository{ |
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35 /** |
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36 * The entitymanager managing the data. |
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37 */ |
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38 @Inject |
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39 private EntityManager em; |
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40 |
39 | 41 /** |
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42 * The data manager providing database operations. |
39 | 43 */ |
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44 @Inject |
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45 @Named("datamanager") |
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46 private Manager manager; |
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47 |
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48 /** |
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49 * The validator used for LProbe objects. |
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50 */ |
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51 @Inject |
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52 @Named("lprobevalidator") |
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53 private Validator validator; |
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54 |
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55 @Inject |
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56 @Named("dataauthorization") |
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57 private Authorization authorization; |
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58 |
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59 public EntityManager getEntityManager() { |
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60 return this.em; |
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61 } |
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62 |
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63 /** |
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64 * Filter object list by the given criteria. |
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65 * |
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66 * @param filter The query filter |
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67 * @return Response object. |
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68 */ |
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69 public <T> Response filter(CriteriaQuery<T> filter) { |
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70 List<T> result = em.createQuery(filter).getResultList(); |
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71 return new Response(true, 200, result); |
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72 } |
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73 |
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74 public Response filterFree( |
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75 String sql, |
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76 List<String> filters, |
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77 List<String> results, |
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78 MultivaluedMap<String, String> params) { |
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79 Query query = em.createNativeQuery(sql); |
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80 for (String filter: filters) { |
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81 query.setParameter(filter, params.get(filter)); |
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82 } |
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83 List<Object[]> result = query.getResultList(); |
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84 List<Map<String, Object>> res = new ArrayList<Map<String, Object>>(); |
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85 for (Object[] row: result) { |
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86 Map<String, Object> set = new HashMap<String, Object>(); |
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87 for (int i = 0; i < row.length; i++) { |
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88 set.put(results.get(i), row[i]); |
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89 if (results.get(i).equals("probeId")) { |
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90 if (authorization.isReadOnly((String)row[i])) { |
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91 set.put("readonly", Boolean.TRUE); |
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92 } |
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93 else { |
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94 set.put("readonly", Boolean.FALSE); |
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95 } |
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96 } |
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97 } |
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98 res.add(set); |
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99 } |
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100 return new Response(true, 200, res); |
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101 } |
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102 |
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103 /** |
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104 * Get all objects. |
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105 * |
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106 * @param clazz The object type. (unused) |
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107 * @return Response object. |
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108 */ |
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109 public <T> Response findAll(Class<T> clazz) { |
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110 QueryBuilder<LProbeInfo> builder = |
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111 new QueryBuilder<LProbeInfo>(this.getEntityManager(), LProbeInfo.class); |
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112 builder.distinct(); |
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113 return filter(builder.getQuery()); |
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114 } |
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115 |
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116 /** |
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117 * Find object identified by its id. |
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118 * |
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119 * @param clazz The object type.(unused) |
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120 * @param id The object id. |
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121 * @return Response object. |
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122 */ |
139
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123 public <T> Response findById(Class<T> clazz, String id) { |
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124 QueryBuilder<LProbeInfo> builder = |
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125 new QueryBuilder<LProbeInfo>(this.getEntityManager(), LProbeInfo.class); |
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126 builder.and("probeId", id); |
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127 builder.distinct(); |
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128 return filter(builder.getQuery()); |
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129 } |
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130 |
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131 /** |
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132 * Validate and persist a new LProbe object. |
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133 * |
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134 * @param object The new LProbe object |
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135 * @return Response. |
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136 */ |
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137 public Response create(Object object) { |
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138 if (!(object instanceof LProbe)) { |
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139 return new Response(false, 602, object); |
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140 } |
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141 LProbe probe = (LProbe)object; |
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142 Response response = new Response(true, 200, probe); |
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143 // Try to save the new LProbe. |
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144 try { |
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145 Map<String, Integer> warnings = validator.validate(probe, false); |
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146 manager.create(probe); |
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147 response.setWarnings(warnings); |
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148 return response; |
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149 } |
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150 catch (EntityExistsException eee) { |
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151 response.setSuccess(false); |
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152 response.setMessage(601); |
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153 } |
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154 catch (IllegalArgumentException iae) { |
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155 response.setSuccess(false); |
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156 response.setMessage(602); |
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157 } |
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158 catch (TransactionRequiredException tre) { |
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159 response.setSuccess(false); |
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160 response.setMessage(603); |
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161 } |
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162 catch (ValidationException ve) { |
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163 response.setSuccess(false); |
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164 response.setMessage(604); |
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165 response.setErrors(ve.getErrors()); |
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166 response.setWarnings(ve.getWarnings()); |
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167 } |
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168 catch (EJBTransactionRolledbackException te) { |
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169 response.setSuccess(false); |
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170 response.setMessage(604); |
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171 } |
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172 return response; |
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173 } |
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174 |
220
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175 /** |
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176 * Validate and update a LProbe object. |
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177 * |
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178 * @param object The object to update. |
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179 * @return Response object. |
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180 */ |
131
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181 public Response update(Object object) { |
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182 if (!(object instanceof LProbe)) { |
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183 return new Response(false, 602, object); |
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184 } |
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185 LProbe probe = (LProbe)object; |
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186 Response response = new Response(true, 200, probe); |
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187 try { |
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188 Map<String, Integer> warnings = validator.validate(probe, true); |
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189 manager.update(probe); |
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190 response.setWarnings(warnings); |
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191 return response; |
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192 } |
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193 catch (EntityExistsException eee) { |
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194 response.setSuccess(false); |
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195 response.setMessage(601); |
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196 } |
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197 catch (IllegalArgumentException iae) { |
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198 response.setSuccess(false); |
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199 response.setMessage(602); |
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200 } |
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201 catch (TransactionRequiredException tre) { |
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202 response.setSuccess(false); |
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203 response.setMessage(603); |
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204 } |
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205 catch (ValidationException ve) { |
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206 response.setSuccess(false); |
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207 response.setMessage(604); |
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208 response.setErrors(ve.getErrors()); |
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209 response.setWarnings(ve.getWarnings()); |
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210 } |
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211 catch (EJBTransactionRolledbackException te) { |
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212 response.setSuccess(false); |
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213 response.setMessage(604); |
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214 } |
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215 return response; |
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216 } |
191
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217 |
220
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218 /** |
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219 * This class does not support this operation. |
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220 * |
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221 * @param object |
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222 */ |
191
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223 public Response delete(Object object) { |
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224 return null; |
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225 } |
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226 } |