Mercurial > hg > monetdb-java

annotate src/main/java/nl/cwi/monetdb/jdbc/MonetDataSource.java @ 262:2d62ca1f758b

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Moved utility method newSQLFeatureNotSupportedException(String name) from MonetPreparedStatement.java and MonetResultSet.java to class MonetWrapper such that it can be called directly from all classes which extend MonetWrapper. Call MonetWrapper.newSQLFeatureNotSupportedException() from more classes and places. Update java documentation: - add "@throws SQLFeatureNotSupportedException" to methods which can throw it - remove "@throws SQLFeatureNotSupportedException" from methods which do not throw it
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Thu, 03 Jan 2019 18:33:25 +0100 (2019-01-03)
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children 4face9f42efc 003ae6d881db
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1 /*
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2 * This Source Code Form is subject to the terms of the Mozilla Public
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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5 *
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6 * Copyright 1997 - July 2008 CWI, August 2008 - 2019 MonetDB B.V.
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7 */
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8
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9 package nl.cwi.monetdb.jdbc;
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11 import java.io.PrintWriter;
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12 import java.sql.Connection;
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13 import java.sql.SQLException;
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14 import java.sql.SQLFeatureNotSupportedException;
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15 import javax.sql.DataSource;
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16 import java.util.Properties;
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17 import java.util.logging.Logger;
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18
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19 /**
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20 * A DataSource suitable for the MonetDB database.
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21 *
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22 * This DataSource allows retrieval of a Connection using the JNDI bean like
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23 * framework. A DataSource has numerous advantages over using the DriverManager
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24 * to retrieve a Connection object. Using the DataSource interface enables a
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25 * more transparent application where the location or database can be changed
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26 * without changing any application code.
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27 *
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28 * Additionally, pooled connections can be used when using a DataSource.
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29 *
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30 * @author Fabian Groffen
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31 * @version 0.1
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32 */
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33 public class MonetDataSource extends MonetWrapper implements DataSource {
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34 private String description;
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35 private int loginTimeout = 0;
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36 private String user;
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37 // insecure, but how to do it better?
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38 private String password;
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39 private String url;
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40
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41 // the following properties are also standard:
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42 // private String dataSourceName;
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43 // private String networkProtocol;
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44 // private String serverName;
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45 // private String role;
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48 private final MonetDriver driver;
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49
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50 /**
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51 * Constructor of a MonetDataSource which uses default settings for a
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52 * connection. You probably want to change this setting using the
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53 * method setURL.
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54 */
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55 public MonetDataSource() {
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56 description = "MonetDB database";
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57 url = "jdbc:monetdb://localhost/";
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58
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59 driver = new MonetDriver();
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60 }
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61
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62 /**
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63 * Attempts to establish a connection with the data source that this
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64 * DataSource object represents.
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65 *
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66 * @return a MonetConnection
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67 * @throws SQLException if connecting to the database fails
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68 */
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69 @Override
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70 public Connection getConnection() throws SQLException {
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71 return getConnection(user, password);
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72 }
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73
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74 /**
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75 * Attempts to establish a connection with the data source that this
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76 * DataSource object represents.
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77 *
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78 * @param username the username to use
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79 * @param password the password to use
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80 * @return a MonetConnection
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81 * @throws SQLException if connecting to the database fails
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82 */
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83 @Override
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84 public Connection getConnection(String username, String password)
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85 throws SQLException
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86 {
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87 if (loginTimeout > 0) {
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88 /// could enable Socket.setSoTimeout(int timeout) here...
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89 }
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90 Properties props = new Properties();
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91 props.put("user", username);
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92 props.put("password", password);
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93
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94 return driver.connect(url, props);
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95 }
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97
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98 /**
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99 * Gets the maximum time in seconds that this data source can wait while
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100 * attempting to connect to a database.
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101 *
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102 * @return login timeout default is 0 (infinite)
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103 */
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104 @Override
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105 public int getLoginTimeout() {
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106 return loginTimeout;
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107 }
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108
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109 /**
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110 * Sets the maximum time in seconds that this data source will wait while
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111 * attempting to connect to a database.
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112 *
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113 * @param seconds the number of seconds to wait before aborting the connect
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114 */
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115 @Override
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116 public void setLoginTimeout(int seconds) {
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117 loginTimeout = seconds;
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118 }
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119
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120 /**
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121 * Retrieves the log writer for this DataSource object.
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122 *
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123 * @return null, since there is no log writer
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124 */
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125 @Override
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126 public PrintWriter getLogWriter() {
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127 return null;
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128 }
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129
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130 /**
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131 * Sets the log writer for this DataSource object to the given
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132 * java.io.PrintWriter object.
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133 *
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134 * @param out a PrintWriter - ignored
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135 */
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136 @Override
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137 public void setLogWriter(PrintWriter out) {
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138 }
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139
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140 /**
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141 * Sets the password to use when connecting. There is no getter
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142 * for obvious reasons.
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143 *
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144 * @param password the password
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145 */
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146 public void setPassword(String password) {
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147 this.password = password;
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148 }
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149
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150 /**
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151 * Gets the username
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152 *
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153 * @return the username
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154 */
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155 public String getUser() {
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156 return user;
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157 }
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158
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159 /**
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160 * Sets the username
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161 *
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162 * @param user the username
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163 */
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164 public void setUser(String user) {
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165 this.user = user;
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166 }
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167
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168 /**
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169 * Gets the connection URL
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170 *
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171 * @return the connection URL
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172 */
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173 public String getURL() {
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174 return url;
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175 }
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176
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177 /**
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178 * Sets the connection URL
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179 *
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180 * @param url the connection URL
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181 */
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182 public void setDatabaseName(String url) {
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183 this.url = url;
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184 }
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185
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186 /**
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187 * Gets the description
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188 *
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189 * @return the description
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190 */
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191 public String getDescription() {
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192 return description;
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193 }
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194
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195 /**
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196 * Sets the description
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197 *
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198 * @param description the description
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199 */
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200 public void setDescription(String description) {
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201 this.description = description;
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202 }
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203
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204 /**
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205 * Return the parent Logger of all the Loggers used by this data
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206 * source. This should be the Logger farthest from the root Logger
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207 * that is still an ancestor of all of the Loggers used by this data
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208 * source. Configuring this Logger will affect all of the log
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209 * messages generated by the data source. In the worst case, this
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210 * may be the root Logger.
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211 *
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212 * @return the parent Logger for this data source
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213 * @throws SQLFeatureNotSupportedException if the data source does
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214 * not use java.util.logging
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215 */
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216 @Override
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217 public Logger getParentLogger() throws SQLFeatureNotSupportedException {
262
2d62ca1f758b Moved utility method newSQLFeatureNotSupportedException(String name) from MonetPreparedStatement.java and MonetResultSet.java
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218 throw newSQLFeatureNotSupportedException("getParentLogger");
0
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219 }
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220 }