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annotate src/main/java/org/monetdb/jdbc/MonetDataSource.java @ 451:3dfcd06fd8ba

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Correcting typos in documentation text. Also improved the readability of the generated javadoc documents.
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Thu, 04 Mar 2021 18:57:51 +0100 (2021-03-04)
parents 1e278695fe54
children 6aa38e8c0f2d
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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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bf9f6b6ecf40 Update Copyright year.
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6 * Copyright 1997 - July 2008 CWI, August 2008 - 2021 MonetDB B.V.
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7 */
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8
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f523727db392 Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.*
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9 package org.monetdb.jdbc;
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10
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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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18 /**
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19 *<pre>
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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 *</pre>
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30 *
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31 * @author Fabian Groffen
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32 * @version 0.2
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33 */
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34 public final class MonetDataSource
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35 extends MonetWrapper
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36 implements DataSource
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37 {
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38 private String description;
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39 private int loginTimeout;
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40 private String user;
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41 // insecure, but how to do it better?
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42 private String password;
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43 private String url;
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44
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45 // the following properties are also standard:
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46 // private String dataSourceName;
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47 // private String networkProtocol;
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48 // private String serverName;
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49 // private String role;
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51
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52 private final MonetDriver driver;
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53
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54 /**
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55 * Constructor of a MonetDataSource which uses default settings for a
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56 * connection. You probably want to change this setting using the
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57 * method setURL.
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58 */
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59 public MonetDataSource() {
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60 description = "MonetDB database";
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61 url = "jdbc:monetdb://localhost/";
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62
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63 driver = new MonetDriver();
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64 }
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65
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66 /**
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67 * Attempts to establish a connection with the data source that this
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68 * DataSource object represents.
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69 *
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70 * @return a MonetConnection
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71 * @throws SQLException if connecting to the database fails
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72 */
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73 @Override
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74 public Connection getConnection() throws SQLException {
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75 return getConnection(user, password);
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76 }
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77
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78 /**
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79 * Attempts to establish a connection with the data source that this
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80 * DataSource object represents.
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81 *
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82 * @param username the username to use
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83 * @param password the password to use
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84 * @return a MonetConnection
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85 * @throws SQLException if connecting to the database fails
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86 */
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87 @Override
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88 public Connection getConnection(final String username, final String password)
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89 throws SQLException
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90 {
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91 if (loginTimeout > 0) {
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92 /// could enable Socket.setSoTimeout(int timeout) here...
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93 }
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94 final Properties props = new Properties();
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95 props.put("user", username);
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96 props.put("password", password);
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97
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98 return driver.connect(url, props);
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99 }
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100
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101
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102 /**
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103 * Gets the maximum time in seconds that this data source can wait while
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104 * attempting to connect to a database.
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105 *
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106 * @return login timeout default is 0 (infinite)
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107 */
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108 @Override
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109 public int getLoginTimeout() {
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110 return loginTimeout;
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111 }
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112
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113 /**
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114 * Sets the maximum time in seconds that this data source will wait while
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115 * attempting to connect to a database.
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116 *
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117 * @param seconds the number of seconds to wait before aborting the connect
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118 */
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119 @Override
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120 public void setLoginTimeout(final int seconds) {
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121 loginTimeout = seconds;
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122 }
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123
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124 /**
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125 * Retrieves the log writer for this DataSource object.
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126 *
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127 * @return null, since there is no log writer
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128 */
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129 @Override
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130 public PrintWriter getLogWriter() {
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131 return null;
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132 }
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133
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134 /**
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135 * Sets the log writer for this DataSource object to the given
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136 * java.io.PrintWriter object.
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137 *
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138 * @param out a PrintWriter - ignored
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139 */
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140 @Override
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141 public void setLogWriter(final PrintWriter out) {
0
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142 }
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143
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144 /**
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145 * Sets the password to use when connecting. There is no getter
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146 * for obvious reasons.
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147 *
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148 * @param password the password
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149 */
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150 public void setPassword(final String password) {
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151 this.password = password;
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152 }
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153
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154 /**
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155 * Gets the username
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156 *
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157 * @return the username
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158 */
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159 public String getUser() {
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160 return user;
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161 }
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162
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163 /**
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164 * Sets the username
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165 *
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166 * @param user the username
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167 */
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168 public void setUser(final String user) {
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169 this.user = user;
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170 }
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171
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172 /**
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173 * Gets the connection URL
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174 *
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175 * @return the connection URL
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176 */
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177 public String getURL() {
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178 return url;
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179 }
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180
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181 /**
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182 * Sets the connection URL
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183 *
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184 * @param url the connection URL
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185 */
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186 public void setDatabaseName(final String url) {
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187 this.url = url;
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188 }
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189
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190 /**
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191 * Gets the description
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192 *
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193 * @return the description
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194 */
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195 public String getDescription() {
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196 return description;
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197 }
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198
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199 /**
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200 * Sets the description
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201 *
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202 * @param description the description
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203 */
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204 public void setDescription(final String description) {
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205 this.description = description;
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206 }
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207
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208 /**
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209 * Return the parent Logger of all the Loggers used by this data
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210 * source. This should be the Logger farthest from the root Logger
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211 * that is still an ancestor of all of the Loggers used by this data
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212 * source. Configuring this Logger will affect all of the log
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213 * messages generated by the data source. In the worst case, this
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214 * may be the root Logger.
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215 *
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216 * @return the parent Logger for this data source
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217 * @throws SQLFeatureNotSupportedException if the data source does
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218 * not use java.util.logging
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219 */
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220 @Override
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221 public java.util.logging.Logger getParentLogger() throws SQLFeatureNotSupportedException {
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222 throw newSQLFeatureNotSupportedException("getParentLogger");
0
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223 }
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224 }