2 * Copyright (C) 2001-2006 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 * and distribute linked combinations including the two. You must obey the
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23 * GNU General Public License in all respects for all of the code used other than
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24 * the above mentioned libraries. If you modify this file, you may extend this
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25 * exception to your version of the file, but you are not obligated to do so.
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26 * If you do not wish to do so, delete this exception statement from your version.
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28 package mir.storage;
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30 import java.sql.Connection;
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31 import java.sql.PreparedStatement;
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32 import java.sql.ResultSet;
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33 import java.util.Date;
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36 * Class to generate insert statements
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38 public class RecordInserter extends StatementGenerator {
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40 public RecordInserter(String aTableName, String aSequenceName) {
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41 tableName = aTableName;
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42 sequenceName = aSequenceName;
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46 * Assigns a value to a string typed field
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48 public void assignString(String aFieldName, String aValue) {
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49 assignObject(aFieldName, aValue);
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53 * Assigns a value to a date/time typed field
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55 public void assignDate(String aFieldName, Date aDate) {
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56 assignObject(aFieldName, new java.sql.Date(aDate.getTime()));
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59 public void assignVerbatim(String aFieldName, String aText) {
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60 if (firstAssignment) {
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61 appendQuery("insert into " + tableName + "(");
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62 firstAssignment = false;
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69 values.append(aText);
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71 appendQuery(aFieldName);
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75 * Executes the statement. Returns the id of the insterted record.
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77 public String execute(Connection aConnection) throws DatabaseFailure {
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80 appendQuery("values (");
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81 appendQuery(values.toString());
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85 int modified = executeWithModifiedCount(aConnection);
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87 throw new Exception("modified count != 1 after insert");
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90 PreparedStatement statement = aConnection.prepareStatement("select currval('" + sequenceName + "')");
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91 ResultSet rs = statement.executeQuery();
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93 return rs.getString(1);
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95 catch (Throwable e) {
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96 throw new DatabaseFailure(e);
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100 private void assignObject(String aFieldName, Object anObject) {
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101 appendParameter(anObject);
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103 assignVerbatim(aFieldName, "?");
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106 private String tableName;
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107 private static final String CRLF = "\n\r";
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108 private boolean firstAssignment = true;
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109 private String sequenceName;
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110 private StringBuffer values = new StringBuffer();
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