2 * Copyright (C) 2001, 2002 The Mir-coders group
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4 * This file is part of Mir.
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6 * Mir is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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11 * Mir is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with Mir; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 * In addition, as a special exception, The Mir-coders gives permission to link
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21 * the code of this program with any library licensed under the Apache Software License,
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22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
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23 * (or with modified versions of the above that use the same license as the above),
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24 * and distribute linked combinations including the two. You must obey the
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25 * GNU General Public License in all respects for all of the code used other than
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26 * the above mentioned libraries. If you modify this file, you may extend this
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27 * exception to your version of the file, but you are not obligated to do so.
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28 * If you do not wish to do so, delete this exception statement from your version.
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30 package mir.storage;
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32 import java.io.IOException;
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33 import java.io.InputStreamReader;
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34 import java.sql.Connection;
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35 import java.sql.PreparedStatement;
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36 import java.sql.ResultSet;
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37 import java.sql.ResultSetMetaData;
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38 import java.sql.SQLException;
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39 import java.sql.Statement;
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40 import java.sql.Timestamp;
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41 import java.text.ParseException;
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42 import java.text.SimpleDateFormat;
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43 import java.util.ArrayList;
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44 import java.util.Calendar;
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45 import java.util.GregorianCalendar;
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46 import java.util.HashMap;
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47 import java.util.Iterator;
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48 import java.util.List;
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49 import java.util.Map;
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50 import java.util.TimeZone;
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51 import java.util.Vector;
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53 import com.codestudio.util.SQLManager;
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54 import mir.config.MirPropertiesConfiguration;
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55 import mir.config.MirPropertiesConfiguration.PropertiesConfigExc;
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56 import mir.entity.Entity;
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57 import mir.entity.EntityList;
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58 import mir.entity.StorableObjectEntity;
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59 import mir.log.LoggerWrapper;
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60 import mir.misc.StringUtil;
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61 import mir.storage.store.ObjectStore;
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62 import mir.storage.store.StorableObject;
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63 import mir.storage.store.StoreContainerType;
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64 import mir.storage.store.StoreIdentifier;
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65 import mir.storage.store.StoreUtil;
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66 import mir.util.JDBCStringRoutines;
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70 * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.
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71 * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.
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72 * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.
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73 * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten
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74 * Treiber, Host, User und Passwort, ueber den der Zugriff auf die
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75 * Datenbank erfolgt.
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77 * @version $Id: Database.java,v 1.44.2.6 2003/09/03 17:49:39 zapata Exp $
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81 public class Database implements StorageObject {
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82 private static Class GENERIC_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;
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83 private static Class STORABLE_OBJECT_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;
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86 private static Map POPUP_EMPTYLINE = new HashMap();
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87 protected static final ObjectStore o_store = ObjectStore.getInstance();
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88 private static final int _millisPerHour = 60 * 60 * 1000;
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89 private static final int _millisPerMinute = 60 * 1000;
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92 // always same object saves a little space
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93 POPUP_EMPTYLINE.put("key", "");
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94 POPUP_EMPTYLINE.put("value", "--");
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97 protected LoggerWrapper logger;
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98 protected MirPropertiesConfiguration configuration;
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99 protected String theTable;
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100 protected String theCoreTable = null;
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101 protected String thePKeyName = "id";
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102 protected int thePKeyType;
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103 protected int thePKeyIndex;
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104 protected boolean evaluatedMetaData = false;
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105 protected ArrayList metadataFields;
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106 protected ArrayList metadataLabels;
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107 protected ArrayList metadataNotNullFields;
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108 protected int[] metadataTypes;
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109 protected Class theEntityClass;
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110 protected List popupCache = null;
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111 protected boolean hasPopupCache = false;
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112 protected Map hashCache = null;
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113 protected boolean hasTimestamp = true;
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114 private String database_driver;
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115 private String database_url;
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116 private int defaultLimit;
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119 SimpleDateFormat internalDateFormat;
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120 SimpleDateFormat userInputDateFormat;
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122 private SimpleDateFormat _dateFormatterOut;
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123 private SimpleDateFormat _dateFormatterIn;
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124 _dateFormatterOut = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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125 _dateFormatterIn = new SimpleDateFormat("yyyy-MM-dd HH:mm");
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129 * Kontruktor bekommt den Filenamen des Konfigurationsfiles ?bergeben.
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130 * Aus diesem file werden <code>Database.Logfile</code>,
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131 * <code>Database.Username</code>,<code>Database.Password</code>,
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132 * <code>Database.Host</code> und <code>Database.Adaptor</code>
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133 * ausgelesen und ein Broker f?r die Verbindugen zur Datenbank
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136 * @param String confFilename Dateiname der Konfigurationsdatei
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138 public Database() throws StorageObjectFailure {
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140 configuration = MirPropertiesConfiguration.instance();
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142 catch (PropertiesConfigExc e) {
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143 throw new StorageObjectFailure(e);
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145 logger = new LoggerWrapper("Database");
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146 timezone = TimeZone.getTimeZone(configuration.getString("Mir.DefaultTimezone"));
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147 internalDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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148 internalDateFormat.setTimeZone(timezone);
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150 userInputDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
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151 userInputDateFormat.setTimeZone(timezone);
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154 String theAdaptorName = configuration.getString("Database.Adaptor");
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155 defaultLimit = Integer.parseInt(configuration.getString("Database.Limit"));
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158 theEntityClass = GENERIC_ENTITY_CLASS;
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160 catch (Throwable e) {
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161 logger.error("Error in Database() constructor with " + theAdaptorName + " -- " + e.getMessage());
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162 throw new StorageObjectFailure("Error in Database() constructor.", e);
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167 * Liefert die Entity-Klasse zur?ck, in der eine Datenbankzeile gewrappt
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168 * wird. Wird die Entity-Klasse durch die erbende Klasse nicht ?berschrieben,
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169 * wird eine mir.entity.GenericEntity erzeugt.
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171 * @return Class-Objekt der Entity
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173 public java.lang.Class getEntityClass() {
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174 return theEntityClass;
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178 * Liefert die Standardbeschr?nkung von select-Statements zur?ck, also
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179 * wieviel Datens?tze per Default selektiert werden.
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181 * @return Standard-Anzahl der Datens?tze
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183 public int getLimit() {
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184 return defaultLimit;
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188 * Liefert den Namen des Primary-Keys zur?ck. Wird die Variable nicht von
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189 * der erbenden Klasse ?berschrieben, so ist der Wert <code>PKEY</code>
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190 * @return Name des Primary-Keys
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192 public String getIdName() {
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193 return thePKeyName;
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197 * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.
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199 * @return Name der Tabelle
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201 public String getTableName() {
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206 * Dient dazu vererbte Tabellen bei objectrelationalen DBMS
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207 * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet
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209 * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst
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212 public String getCoreTable() {
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213 if (theCoreTable != null) {
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214 return theCoreTable;
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222 * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)
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223 * @return int-Array mit den Typen der Felder
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224 * @exception StorageObjectException
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226 public int[] getTypes() throws StorageObjectFailure {
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227 if (metadataTypes == null) {
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231 return metadataTypes;
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235 * Liefert eine Liste der Labels der Tabellenfelder
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236 * @return ArrayListe mit Labeln
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237 * @exception StorageObjectException
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239 public List getLabels() throws StorageObjectFailure {
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240 if (metadataLabels == null) {
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244 return metadataLabels;
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248 * Liefert eine Liste der Felder der Tabelle
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249 * @return ArrayList mit Feldern
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250 * @exception StorageObjectException
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252 public List getFields() throws StorageObjectFailure {
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253 if (metadataFields == null) {
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257 return metadataFields;
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261 * Gets value out of ResultSet according to type and converts to String
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262 * @param inValue Wert aus ResultSet.
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263 * @param aType Datenbanktyp.
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264 * @return liefert den Wert als String zurueck. Wenn keine Umwandlung moeglich
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265 * dann /unsupported value/
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267 private String getValueAsString(ResultSet rs, int valueIndex, int aType)
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268 throws StorageObjectFailure {
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269 String outValue = null;
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274 case java.sql.Types.BIT:
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275 outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";
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279 case java.sql.Types.INTEGER:
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280 case java.sql.Types.SMALLINT:
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281 case java.sql.Types.TINYINT:
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282 case java.sql.Types.BIGINT:
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284 int out = rs.getInt(valueIndex);
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286 if (!rs.wasNull()) {
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287 outValue = new Integer(out).toString();
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292 case java.sql.Types.NUMERIC:
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294 /** @todo Numeric can be float or double depending upon
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295 * metadata.getScale() / especially with oracle */
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296 long outl = rs.getLong(valueIndex);
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298 if (!rs.wasNull()) {
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299 outValue = new Long(outl).toString();
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304 case java.sql.Types.REAL:
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306 float tempf = rs.getFloat(valueIndex);
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308 if (!rs.wasNull()) {
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312 int tempf_int = (int) tempf;
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313 tempf = (float) tempf_int;
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315 outValue = "" + tempf;
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316 outValue = outValue.replace('.', ',');
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321 case java.sql.Types.DOUBLE:
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323 double tempd = rs.getDouble(valueIndex);
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325 if (!rs.wasNull()) {
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329 int tempd_int = (int) tempd;
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330 tempd = (double) tempd_int;
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332 outValue = "" + tempd;
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333 outValue = outValue.replace('.', ',');
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338 case java.sql.Types.CHAR:
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339 case java.sql.Types.VARCHAR:
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340 case java.sql.Types.LONGVARCHAR:
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341 outValue = rs.getString(valueIndex);
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345 case java.sql.Types.LONGVARBINARY:
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346 outValue = rs.getString(valueIndex);
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350 case java.sql.Types.TIMESTAMP:
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352 // it's important to use Timestamp here as getting it
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353 // as a string is undefined and is only there for debugging
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354 // according to the API. we can make it a string through formatting.
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356 Timestamp timestamp = (rs.getTimestamp(valueIndex));
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358 if (!rs.wasNull()) {
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359 java.util.Date date = new java.util.Date(timestamp.getTime());
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361 Calendar calendar = new GregorianCalendar();
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362 calendar.setTime(date);
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363 calendar.setTimeZone(timezone);
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364 outValue = internalDateFormat.format(date);
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366 int offset = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
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367 String tzOffset = StringUtil.zeroPaddingNumber(Math.abs(offset) / _millisPerHour, 2, 2);
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370 outValue = outValue + "-";
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372 outValue = outValue + "+";
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373 outValue = outValue + tzOffset;
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379 outValue = "<unsupported value>";
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380 logger.warn("Unsupported Datatype: at " + valueIndex + " (" + aType + ")");
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382 } catch (SQLException e) {
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383 throw new StorageObjectFailure("Could not get Value out of Resultset -- ",
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392 * select-Operator um einen Datensatz zu bekommen.
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393 * @param id Primaerschluessel des Datensatzes.
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394 * @return liefert EntityObject des gefundenen Datensatzes oder null.
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396 public Entity selectById(String id) throws StorageObjectExc {
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397 if ((id == null) || id.equals("")) {
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398 throw new StorageObjectExc("Database.selectById: Missing id");
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401 // ask object store for object
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402 if (StoreUtil.implementsStorableObject(theEntityClass)) {
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403 String uniqueId = id;
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405 if (theEntityClass.equals(StorableObjectEntity.class)) {
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406 uniqueId += ("@" + theTable);
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409 StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);
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410 logger.debug("CACHE: (dbg) looking for sid " + search_sid.toString());
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412 Entity hit = (Entity) o_store.use(search_sid);
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419 Statement stmt = null;
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420 Connection con = getPooledCon();
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421 Entity returnEntity = null;
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426 /** @todo better prepared statement */
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428 "select * from " + theTable + " where " + thePKeyName + "=" + id;
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429 stmt = con.createStatement();
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430 rs = executeSql(stmt, selectSql);
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433 if (evaluatedMetaData == false) {
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434 evalMetaData(rs.getMetaData());
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438 returnEntity = makeEntityFromResultSet(rs);
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441 logger.debug("No data for id: " + id + " in table " + theTable);
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447 logger.debug("No Data for Id " + id + " in Table " + theTable);
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450 catch (SQLException sqe) {
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451 throwSQLException(sqe, "selectById");
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454 catch (NumberFormatException e) {
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455 logger.error("ID is no number: " + id);
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458 freeConnection(con, stmt);
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461 return returnEntity;
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465 * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
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466 * @param key Datenbankfeld der Bedingung.
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467 * @param value Wert die der key anehmen muss.
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468 * @return EntityList mit den gematchten Entities
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470 public EntityList selectByFieldValue(String aField, String aValue) throws StorageObjectFailure {
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471 return selectByFieldValue(aField, aValue, 0);
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475 * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
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476 * @param key Datenbankfeld der Bedingung.
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477 * @param value Wert die der key anehmen muss.
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478 * @param offset Gibt an ab welchem Datensatz angezeigt werden soll.
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479 * @return EntityList mit den gematchten Entities
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481 public EntityList selectByFieldValue(String aField, String aValue, int offset) throws StorageObjectFailure {
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482 return selectByWhereClause(aField + "=" + aValue, offset);
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486 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
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487 * Also offset wird der erste Datensatz genommen.
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489 * @param wc where-Clause
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490 * @return EntityList mit den gematchten Entities
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491 * @exception StorageObjectException
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493 public EntityList selectByWhereClause(String where) throws StorageObjectFailure {
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494 return selectByWhereClause(where, 0);
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498 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
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499 * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
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501 * @param wc where-Clause
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502 * @param offset ab welchem Datensatz.
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503 * @return EntityList mit den gematchten Entities
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504 * @exception StorageObjectException
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506 public EntityList selectByWhereClause(String whereClause, int offset) throws StorageObjectFailure {
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507 return selectByWhereClause(whereClause, null, offset);
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511 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
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512 * Also offset wird der erste Datensatz genommen.
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513 * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
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515 * @param wc where-Clause
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516 * @param ob orderBy-Clause
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517 * @return EntityList mit den gematchten Entities
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518 * @exception StorageObjectException
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520 public EntityList selectByWhereClause(String where, String order) throws StorageObjectFailure {
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521 return selectByWhereClause(where, order, 0);
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525 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
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526 * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
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528 * @param wc where-Clause
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529 * @param ob orderBy-Clause
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530 * @param offset ab welchem Datensatz
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531 * @return EntityList mit den gematchten Entities
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532 * @exception StorageObjectException
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534 public EntityList selectByWhereClause(String whereClause, String orderBy, int offset) throws StorageObjectFailure {
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535 return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);
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539 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
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540 * @param aWhereClause where-Clause
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541 * @param anOrderByClause orderBy-Clause
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542 * @param offset ab welchem Datensatz
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543 * @param limit wieviele Datens?tze
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544 * @return EntityList mit den gematchten Entities
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545 * @exception StorageObjectException
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547 public EntityList selectByWhereClause(String aWhereClause, String anOrderByClause,
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548 int offset, int limit) throws StorageObjectFailure {
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550 // check o_store for entitylist
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551 if (StoreUtil.implementsStorableObject(theEntityClass)) {
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552 StoreIdentifier search_sid =
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553 new StoreIdentifier(
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554 theEntityClass, StoreContainerType.STOC_TYPE_ENTITYLIST,
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555 StoreUtil.getEntityListUniqueIdentifierFor(theTable, aWhereClause, anOrderByClause, offset, limit));
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556 EntityList hit = (EntityList) o_store.use(search_sid);
\r
559 logger.debug("CACHE (hit): " + search_sid.toString());
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566 EntityList theReturnList = null;
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567 Connection con = null;
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568 Statement stmt = null;
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570 int offsetCount = 0;
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573 // build sql-statement
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575 /** @todo count sql string should only be assembled if we really count
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576 * see below at the end of method //rk */
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577 if ((aWhereClause != null) && (aWhereClause.trim().length() == 0)) {
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578 aWhereClause = null;
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581 StringBuffer countSql =
\r
582 new StringBuffer("select count(*) from ").append(theTable);
\r
583 StringBuffer selectSql =
\r
584 new StringBuffer("select * from ").append(theTable);
\r
586 if (aWhereClause != null) {
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587 selectSql.append(" where ").append(aWhereClause);
\r
588 countSql.append(" where ").append(aWhereClause);
\r
591 if ((anOrderByClause != null) && !(anOrderByClause.trim().length() == 0)) {
\r
592 selectSql.append(" order by ").append(anOrderByClause);
\r
595 if ((limit > -1) && (offset > -1)) {
\r
596 selectSql.append(" LIMIT ").append(limit).append(" OFFSET ").append(offset);
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601 con = getPooledCon();
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602 stmt = con.createStatement();
\r
605 rs = executeSql(stmt, selectSql.toString());
\r
608 if (!evaluatedMetaData) {
\r
609 evalMetaData(rs.getMetaData());
\r
612 theReturnList = new EntityList();
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614 Entity theResultEntity;
\r
616 while (rs.next()) {
\r
617 theResultEntity = makeEntityFromResultSet(rs);
\r
618 theReturnList.add(theResultEntity);
\r
625 // making entitylist infos
\r
626 count = offsetCount;
\r
628 if (theReturnList != null) {
\r
629 // now we decide if we have to know an overall count...
\r
630 count = offsetCount;
\r
632 if ((limit > -1) && (offset > -1)) {
\r
633 if (offsetCount == limit) {
\r
634 /** @todo counting should be deffered to entitylist
\r
635 * getSize() should be used */
\r
636 rs = executeSql(stmt, countSql.toString());
\r
640 count = rs.getInt(1);
\r
646 logger.error("Could not count: " + countSql);
\r
651 theReturnList.setCount(count);
\r
652 theReturnList.setOffset(offset);
\r
653 theReturnList.setWhere(aWhereClause);
\r
654 theReturnList.setOrder(anOrderByClause);
\r
655 theReturnList.setStorage(this);
\r
656 theReturnList.setLimit(limit);
\r
658 if (offset >= limit) {
\r
659 theReturnList.setPrevBatch(offset - limit);
\r
662 if ((offset + offsetCount) < count) {
\r
663 theReturnList.setNextBatch(offset + limit);
\r
666 if (StoreUtil.implementsStorableObject(theEntityClass)) {
\r
667 StoreIdentifier sid = theReturnList.getStoreIdentifier();
\r
668 logger.debug("CACHE (add): " + sid.toString());
\r
673 catch (SQLException sqe) {
\r
674 throwSQLException(sqe, "selectByWhereClause");
\r
679 freeConnection(con, stmt);
\r
681 } catch (Throwable t) {
\r
685 return theReturnList;
\r
689 * Bastelt aus einer Zeile der Datenbank ein EntityObjekt.
\r
691 * @param rs Das ResultSetObjekt.
\r
692 * @return Entity Die Entity.
\r
694 private Entity makeEntityFromResultSet(ResultSet rs)
\r
695 throws StorageObjectFailure {
\r
696 /** @todo OS: get Pkey from ResultSet and consult ObjectStore */
\r
697 Map theResultHash = new HashMap();
\r
698 String theResult = null;
\r
700 Entity returnEntity = null;
\r
703 int size = metadataFields.size();
\r
705 for (int i = 0; i < size; i++) {
\r
706 // alle durchlaufen bis nix mehr da
\r
707 theType = metadataTypes[i];
\r
709 if (theType == java.sql.Types.LONGVARBINARY) {
\r
710 InputStreamReader is =
\r
711 (InputStreamReader) rs.getCharacterStream(i + 1);
\r
714 char[] data = new char[32768];
\r
715 StringBuffer theResultString = new StringBuffer();
\r
718 while ((len = is.read(data)) > 0) {
\r
719 theResultString.append(data, 0, len);
\r
723 theResult = theResultString.toString();
\r
728 theResult = getValueAsString(rs, (i + 1), theType);
\r
731 if (theResult != null) {
\r
732 theResultHash.put(metadataFields.get(i), theResult);
\r
736 if (theEntityClass != null) {
\r
737 returnEntity = (Entity) theEntityClass.newInstance();
\r
738 returnEntity.setStorage(this);
\r
739 returnEntity.setValues(theResultHash);
\r
741 if (returnEntity instanceof StorableObject) {
\r
742 logger.debug("CACHE: ( in) " + returnEntity.getId() + " :" + theTable);
\r
743 o_store.add(((StorableObject) returnEntity).getStoreIdentifier());
\r
746 throwStorageObjectException("Internal Error: theEntityClass not set!");
\r
749 catch (IllegalAccessException e) {
\r
750 throwStorageObjectException("No access! -- " + e.getMessage());
\r
752 catch (IOException e) {
\r
753 throwStorageObjectException("IOException! -- " + e.getMessage());
\r
755 catch (InstantiationException e) {
\r
756 throwStorageObjectException("No Instatiation! -- " + e.getMessage());
\r
758 catch (SQLException sqe) {
\r
759 throwSQLException(sqe, "makeEntityFromResultSet");
\r
764 return returnEntity;
\r
768 * Inserts an entity into the database.
\r
771 * @return der Wert des Primary-keys der eingef?gten Entity
\r
773 public String insert(Entity theEntity) throws StorageObjectFailure {
\r
775 invalidatePopupCache();
\r
777 // invalidating all EntityLists corresponding with theEntityClass
\r
778 if (StoreUtil.implementsStorableObject(theEntityClass)) {
\r
779 StoreContainerType stoc_type =
\r
780 StoreContainerType.valueOf(theEntityClass,
\r
781 StoreContainerType.STOC_TYPE_ENTITYLIST);
\r
782 o_store.invalidate(stoc_type);
\r
785 String returnId = null;
\r
786 Connection con = null;
\r
787 PreparedStatement pstmt = null;
\r
790 List streamedInput = theEntity.streamedInput();
\r
791 StringBuffer f = new StringBuffer();
\r
792 StringBuffer v = new StringBuffer();
\r
795 boolean firstField = true;
\r
798 for (int i = 0; i < getFields().size(); i++) {
\r
799 aField = (String) getFields().get(i);
\r
801 if (!aField.equals(thePKeyName)) {
\r
805 if (!theEntity.hasValueForField(aField) && (
\r
806 aField.equals("webdb_create") ||
\r
807 aField.equals("webdb_lastchange"))) {
\r
811 if ((streamedInput != null) && streamedInput.contains(aField)) {
\r
815 if (theEntity.hasValueForField(aField)) {
\r
818 JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField)) + "'";
\r
823 // wenn Wert gegeben, dann einbauen
\r
824 if (aValue != null) {
\r
825 if (firstField == false) {
\r
830 firstField = false;
\r
841 StringBuffer sqlBuf =
\r
842 new StringBuffer("insert into ").append(theTable).append("(").append(f)
\r
843 .append(") values (").append(v).append(")");
\r
844 String sql = sqlBuf.toString();
\r
846 logger.debug("INSERT: " + sql);
\r
847 con = getPooledCon();
\r
848 con.setAutoCommit(false);
\r
849 pstmt = con.prepareStatement(sql);
\r
851 if (streamedInput != null) {
\r
852 for (int i = 0; i < streamedInput.size(); i++) {
\r
853 String inputString =
\r
854 (String) theEntity.getValue((String) streamedInput.get(i));
\r
855 pstmt.setBytes(i + 1, inputString.getBytes());
\r
859 int ret = pstmt.executeUpdate();
\r
866 pstmt = con.prepareStatement("select currval('" + getCoreTable() + "_id_seq')");
\r
868 ResultSet rs = pstmt.executeQuery();
\r
870 returnId = rs.getString(1);
\r
871 theEntity.setId(returnId);
\r
873 catch (SQLException sqe) {
\r
874 throwSQLException(sqe, "insert");
\r
878 con.setAutoCommit(true);
\r
880 catch (Exception e) {
\r
883 freeConnection(con, pstmt);
\r
886 /** @todo store entity in o_store */
\r
891 * Updates an entity in the database
\r
895 public void update(Entity theEntity) throws StorageObjectFailure {
\r
896 Connection con = null;
\r
897 PreparedStatement pstmt = null;
\r
899 /** @todo this is stupid: why do we prepare statement, when we
\r
900 * throw it away afterwards. should be regular statement
\r
901 * update/insert could better be one routine called save()
\r
902 * that chooses to either insert or update depending if we
\r
903 * have a primary key in the entity. i don't know if we
\r
904 * still need the streamed input fields. // rk */
\r
905 /** @todo extension: check if Entity did change, otherwise we don't need
\r
906 * the roundtrip to the database */
\r
907 /** invalidating corresponding entitylists in o_store*/
\r
908 if (StoreUtil.implementsStorableObject(theEntityClass)) {
\r
909 StoreContainerType stoc_type =
\r
910 StoreContainerType.valueOf(theEntityClass,
\r
911 StoreContainerType.STOC_TYPE_ENTITYLIST);
\r
912 o_store.invalidate(stoc_type);
\r
915 List streamedInput = theEntity.streamedInput();
\r
916 String id = theEntity.getId();
\r
918 StringBuffer fv = new StringBuffer();
\r
919 boolean firstField = true;
\r
922 invalidatePopupCache();
\r
924 // build sql statement
\r
925 for (int i = 0; i < getFields().size(); i++) {
\r
926 aField = (String) metadataFields.get(i);
\r
928 // only normal cases
\r
929 if ( !(aField.equals(thePKeyName) ||
\r
930 aField.equals("webdb_create") ||
\r
931 aField.equals("webdb_lastchange") ||
\r
932 ((streamedInput != null) && streamedInput.contains(aField)))) {
\r
933 if (theEntity.hasValueForField(aField)) {
\r
934 if (firstField == false) {
\r
938 firstField = false;
\r
941 fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField))).append("'");
\r
943 // fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");
\r
949 new StringBuffer("update ").append(theTable).append(" set ").append(fv);
\r
952 if (metadataFields.contains("webdb_lastchange")) {
\r
953 sql.append(",webdb_lastchange=NOW()");
\r
956 // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm
\r
957 // format so anything extra will be ignored. -mh
\r
958 if (metadataFields.contains("webdb_create") &&
\r
959 theEntity.hasValueForField("webdb_create")) {
\r
960 // minimum of 10 (yyyy-mm-dd)...
\r
961 if (theEntity.getValue("webdb_create").length() >= 10) {
\r
962 String dateString = theEntity.getValue("webdb_create");
\r
964 // if only 10, then add 00:00 so it doesn't throw a ParseException
\r
965 if (dateString.length() == 10) {
\r
966 dateString = dateString + " 00:00";
\r
971 java.util.Date d = userInputDateFormat.parse(dateString);
\r
972 // Timestamp tStamp = new Timestamp(d.getTime());
\r
973 sql.append(",webdb_create='" + JDBCStringRoutines.formatDate(d) + "'");
\r
975 catch (ParseException e) {
\r
976 throw new StorageObjectFailure(e);
\r
981 if (streamedInput != null) {
\r
982 for (int i = 0; i < streamedInput.size(); i++) {
\r
983 sql.append(",").append(streamedInput.get(i)).append("=?");
\r
987 sql.append(" where id=").append(id);
\r
988 logger.debug("UPDATE: " + sql);
\r
991 con = getPooledCon();
\r
992 con.setAutoCommit(false);
\r
993 pstmt = con.prepareStatement(sql.toString());
\r
995 if (streamedInput != null) {
\r
996 for (int i = 0; i < streamedInput.size(); i++) {
\r
997 String inputString =
\r
998 theEntity.getValue((String) streamedInput.get(i));
\r
999 pstmt.setBytes(i + 1, inputString.getBytes());
\r
1003 pstmt.executeUpdate();
\r
1005 catch (SQLException sqe) {
\r
1006 throwSQLException(sqe, "update");
\r
1010 con.setAutoCommit(true);
\r
1012 catch (Exception e) {
\r
1016 freeConnection(con, pstmt);
\r
1022 * @param id des zu loeschenden Datensatzes
\r
1023 * @return boolean liefert true zurueck, wenn loeschen erfolgreich war.
\r
1025 public boolean delete(String id) throws StorageObjectFailure {
\r
1026 invalidatePopupCache();
\r
1028 // ostore send notification
\r
1029 if (StoreUtil.implementsStorableObject(theEntityClass)) {
\r
1030 String uniqueId = id;
\r
1032 if (theEntityClass.equals(StorableObjectEntity.class)) {
\r
1033 uniqueId += ("@" + theTable);
\r
1036 logger.debug("CACHE: (del) " + id);
\r
1038 StoreIdentifier search_sid =
\r
1039 new StoreIdentifier(theEntityClass,
\r
1040 StoreContainerType.STOC_TYPE_ENTITY, uniqueId);
\r
1041 o_store.invalidate(search_sid);
\r
1044 /** @todo could be prepared Statement */
\r
1045 Statement stmt = null;
\r
1046 Connection con = null;
\r
1049 "delete from " + theTable + " where " + thePKeyName + "='" + id + "'";
\r
1051 //theLog.printInfo("DELETE " + sql);
\r
1053 con = getPooledCon();
\r
1054 stmt = con.createStatement();
\r
1055 res = stmt.executeUpdate(sql);
\r
1056 } catch (SQLException sqe) {
\r
1057 throwSQLException(sqe, "delete");
\r
1059 freeConnection(con, stmt);
\r
1062 return (res > 0) ? true : false;
\r
1066 * Deletes entities based on a where clause
\r
1068 * @param aWhereClause
\r
1070 * @throws StorageObjectFailure
\r
1072 public int deleteByWhereClause(String aWhereClause) throws StorageObjectFailure {
\r
1073 invalidatePopupCache();
\r
1074 if (StoreUtil.implementsStorableObject(theEntityClass)) {
\r
1075 StoreContainerType stoc_type = StoreContainerType.valueOf(theEntityClass, StoreContainerType.STOC_TYPE_ENTITYLIST);
\r
1076 o_store.invalidate(stoc_type);
\r
1079 Statement stmt = null;
\r
1080 Connection con = null;
\r
1083 "delete from " + theTable + " where " + aWhereClause;
\r
1085 //theLog.printInfo("DELETE " + sql);
\r
1087 con = getPooledCon();
\r
1088 stmt = con.createStatement();
\r
1089 res = stmt.executeUpdate(sql);
\r
1091 catch (SQLException sqe) {
\r
1092 throwSQLException(sqe, "delete");
\r
1095 freeConnection(con, stmt);
\r
1101 /* noch nicht implementiert.
\r
1102 * @return immer false
\r
1104 public boolean delete(EntityList theEntityList) {
\r
1105 invalidatePopupCache();
\r
1110 /* invalidates the popupCache
\r
1112 protected void invalidatePopupCache() {
\r
1113 /** @todo invalidates toooo much */
\r
1114 popupCache = null;
\r
1119 * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.
\r
1120 * @param stmt Statemnt
\r
1121 * @param sql Sql-String
\r
1122 * @return ResultSet
\r
1123 * @exception StorageObjectException
\r
1125 public ResultSet executeSql(Statement stmt, String sql)
\r
1126 throws StorageObjectFailure, SQLException {
\r
1128 long startTime = System.currentTimeMillis();
\r
1131 rs = stmt.executeQuery(sql);
\r
1133 logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1135 catch (SQLException e) {
\r
1136 logger.error(e.getMessage() +"\n" + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1143 public ResultSet executeSql(String sql) throws StorageObjectFailure, SQLException {
\r
1144 long startTime = System.currentTimeMillis();
\r
1145 Connection connection = null;
\r
1146 Statement statement = null;
\r
1149 connection = getPooledCon();
\r
1150 statement = connection.createStatement();
\r
1153 result = statement.executeQuery(sql);
\r
1155 logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1158 catch (Throwable e) {
\r
1159 logger.error(e.getMessage() +"\n" + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1160 throw new StorageObjectFailure(e);
\r
1163 if (connection!=null) {
\r
1164 freeConnection(connection, statement);
\r
1169 private Map processRow(ResultSet aResultSet) throws StorageObjectFailure, StorageObjectExc {
\r
1171 Map result = new HashMap();
\r
1172 ResultSetMetaData metaData = aResultSet.getMetaData();
\r
1173 int nrColumns = metaData.getColumnCount();
\r
1174 for (int i=0; i<nrColumns; i++) {
\r
1175 result.put(metaData.getColumnName(i+1), getValueAsString(aResultSet, i+1, metaData.getColumnType(i+1)));
\r
1180 catch (Throwable e) {
\r
1181 throw new StorageObjectFailure(e);
\r
1185 public List executeFreeSql(String sql, int aLimit) throws StorageObjectFailure, StorageObjectExc {
\r
1186 Connection connection = null;
\r
1187 Statement statement = null;
\r
1189 List result = new Vector();
\r
1190 connection = getPooledCon();
\r
1191 statement = connection.createStatement();
\r
1192 ResultSet resultset = executeSql(statement, sql);
\r
1194 while (resultset.next() && result.size() < aLimit) {
\r
1195 result.add(processRow(resultset));
\r
1199 resultset.close();
\r
1204 catch (Throwable e) {
\r
1205 throw new StorageObjectFailure(e);
\r
1208 if (connection!=null) {
\r
1209 freeConnection(connection, statement);
\r
1214 public Map executeFreeSingleRowSql(String anSqlStatement) throws StorageObjectFailure, StorageObjectExc {
\r
1216 List resultList = executeFreeSql(anSqlStatement, 1);
\r
1218 if (resultList.size()>0)
\r
1219 return (Map) resultList.get(0);
\r
1226 catch (Throwable t) {
\r
1227 throw new StorageObjectFailure(t);
\r
1231 public String executeFreeSingleValueSql(String sql) throws StorageObjectFailure, StorageObjectExc {
\r
1232 Map row = executeFreeSingleRowSql(sql);
\r
1237 Iterator i = row.values().iterator();
\r
1239 return (String) i.next();
\r
1245 * returns the number of rows in the table
\r
1247 public int getSize(String where) throws SQLException, StorageObjectFailure {
\r
1248 long startTime = System.currentTimeMillis();
\r
1249 String sql = "SELECT Count(*) FROM " + theTable;
\r
1251 if ((where != null) && (where.length() != 0)) {
\r
1252 sql = sql + " where " + where;
\r
1255 Connection con = null;
\r
1256 Statement stmt = null;
\r
1260 con = getPooledCon();
\r
1261 stmt = con.createStatement();
\r
1263 ResultSet rs = executeSql(stmt, sql);
\r
1265 while (rs.next()) {
\r
1266 result = rs.getInt(1);
\r
1269 catch (SQLException e) {
\r
1270 logger.error("Database.getSize: " + e.getMessage());
\r
1273 freeConnection(con, stmt);
\r
1276 //theLog.printInfo(theTable + " has "+ result +" rows where " + where);
\r
1277 logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1282 public int executeUpdate(Statement stmt, String sql)
\r
1283 throws StorageObjectFailure, SQLException {
\r
1285 long startTime = System.currentTimeMillis();
\r
1288 rs = stmt.executeUpdate(sql);
\r
1290 logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1292 catch (SQLException e) {
\r
1293 logger.error("Failed: " + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1300 public int executeUpdate(String sql)
\r
1301 throws StorageObjectFailure, SQLException {
\r
1303 long startTime = System.currentTimeMillis();
\r
1304 Connection con = null;
\r
1305 PreparedStatement pstmt = null;
\r
1308 con = getPooledCon();
\r
1309 pstmt = con.prepareStatement(sql);
\r
1310 result = pstmt.executeUpdate();
\r
1312 catch (Throwable e) {
\r
1313 logger.error("Database.executeUpdate(" + sql + "): " + e.getMessage());
\r
1314 throw new StorageObjectFailure("Database.executeUpdate(" + sql + "): " + e.getMessage(), e);
\r
1317 freeConnection(con, pstmt);
\r
1320 logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
\r
1325 * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend
\r
1326 * @param md ResultSetMetaData
\r
1327 * @exception StorageObjectException
\r
1329 private void evalMetaData(ResultSetMetaData md) throws StorageObjectFailure {
\r
1330 this.evaluatedMetaData = true;
\r
1331 this.metadataFields = new ArrayList();
\r
1332 this.metadataLabels = new ArrayList();
\r
1333 this.metadataNotNullFields = new ArrayList();
\r
1336 int numFields = md.getColumnCount();
\r
1337 this.metadataTypes = new int[numFields];
\r
1342 for (int i = 1; i <= numFields; i++) {
\r
1343 aField = md.getColumnName(i);
\r
1344 metadataFields.add(aField);
\r
1345 metadataLabels.add(md.getColumnLabel(i));
\r
1346 aType = md.getColumnType(i);
\r
1347 metadataTypes[i - 1] = aType;
\r
1349 if (aField.equals(thePKeyName)) {
\r
1350 thePKeyType = aType;
\r
1354 if (md.isNullable(i) == ResultSetMetaData.columnNullable) {
\r
1355 metadataNotNullFields.add(aField);
\r
1359 catch (SQLException e) {
\r
1360 throwSQLException(e, "evalMetaData");
\r
1365 * Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,
\r
1366 * um die alle Columns und Typen einer Tabelle zu ermitteln.
\r
1368 private void get_meta_data() throws StorageObjectFailure {
\r
1369 Connection con = null;
\r
1370 PreparedStatement pstmt = null;
\r
1371 String sql = "select * from " + theTable + " where 0=1";
\r
1374 con = getPooledCon();
\r
1375 pstmt = con.prepareStatement(sql);
\r
1377 logger.debug("METADATA: " + sql);
\r
1378 ResultSet rs = pstmt.executeQuery();
\r
1379 evalMetaData(rs.getMetaData());
\r
1382 catch (SQLException e) {
\r
1383 throwSQLException(e, "get_meta_data");
\r
1386 freeConnection(con, pstmt);
\r
1390 public Connection getPooledCon() throws StorageObjectFailure {
\r
1391 Connection con = null;
\r
1394 con = SQLManager.getInstance().requestConnection();
\r
1396 catch (SQLException e) {
\r
1397 logger.error("could not connect to the database " + e.getMessage());
\r
1399 throw new StorageObjectFailure("Could not connect to the database", e);
\r
1405 public void freeConnection(Connection con, Statement stmt)
\r
1406 throws StorageObjectFailure {
\r
1407 SQLManager.closeStatement(stmt);
\r
1408 SQLManager.getInstance().returnConnection(con);
\r
1412 * Wertet SQLException aus und wirft dannach eine StorageObjectException
\r
1413 * @param sqe SQLException
\r
1414 * @param wo Funktonsname, in der die SQLException geworfen wurde
\r
1415 * @exception StorageObjectException
\r
1417 protected void throwSQLException(SQLException sqe, String aFunction) throws StorageObjectFailure {
\r
1418 String state = "";
\r
1419 String message = "";
\r
1422 if (sqe != null) {
\r
1423 state = sqe.getSQLState();
\r
1424 message = sqe.getMessage();
\r
1425 vendor = sqe.getErrorCode();
\r
1428 String information =
\r
1430 "state= " + state +
\r
1431 ", vendor= " + vendor +
\r
1432 ", message=" + message +
\r
1433 ", function= " + aFunction;
\r
1435 logger.error(information);
\r
1437 throw new StorageObjectFailure(information, sqe);
\r
1440 protected void _throwStorageObjectException(Exception e, String aFunction)
\r
1441 throws StorageObjectFailure {
\r
1444 logger.error(e.getMessage() + aFunction);
\r
1445 throw new StorageObjectFailure(aFunction, e);
\r
1450 * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach
\r
1451 * eine StorageObjectException
\r
1452 * @param message Nachricht mit dem Fehler
\r
1453 * @exception StorageObjectException
\r
1455 void throwStorageObjectException(String aMessage) throws StorageObjectFailure {
\r
1456 logger.error(aMessage);
\r
1457 throw new StorageObjectFailure(aMessage, null);
\r