Mercurial > hg > monetdb-java
annotate src/main/java/org/monetdb/jdbc/MonetDataSource.java @ 406:bf9f6b6ecf40
Update Copyright year.
author | Martin van Dinther <martin.van.dinther@monetdbsolutions.com> |
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date | Wed, 06 Jan 2021 22:09:32 +0100 (2021-01-06) |
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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 - 2021 MonetDB B.V. |
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7 */ |
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8 |
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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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17 |
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18 /** |
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19 * A DataSource suitable for the MonetDB database. |
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20 * |
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21 * This DataSource allows retrieval of a Connection using the JNDI bean like |
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22 * framework. A DataSource has numerous advantages over using the DriverManager |
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23 * to retrieve a Connection object. Using the DataSource interface enables a |
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24 * more transparent application where the location or database can be changed |
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25 * without changing any application code. |
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26 * |
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27 * Additionally, pooled connections can be used when using a DataSource. |
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28 * |
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29 * @author Fabian Groffen |
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30 * @version 0.2 |
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31 */ |
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32 public final class MonetDataSource |
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33 extends MonetWrapper |
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34 implements DataSource |
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35 { |
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36 private String description; |
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37 private int loginTimeout = 0; |
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38 private String user; |
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39 // insecure, but how to do it better? |
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40 private String password; |
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41 private String url; |
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42 |
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43 // the following properties are also standard: |
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44 // private String dataSourceName; |
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45 // private String networkProtocol; |
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46 // private String serverName; |
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47 // private String role; |
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48 |
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49 |
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50 private final MonetDriver driver; |
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51 |
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52 /** |
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53 * Constructor of a MonetDataSource which uses default settings for a |
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54 * connection. You probably want to change this setting using the |
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55 * method setURL. |
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56 */ |
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57 public MonetDataSource() { |
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58 description = "MonetDB database"; |
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59 url = "jdbc:monetdb://localhost/"; |
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60 |
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61 driver = new MonetDriver(); |
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62 } |
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63 |
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64 /** |
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65 * Attempts to establish a connection with the data source that this |
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66 * DataSource object represents. |
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67 * |
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68 * @return a MonetConnection |
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69 * @throws SQLException if connecting to the database fails |
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70 */ |
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71 @Override |
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72 public Connection getConnection() throws SQLException { |
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73 return getConnection(user, password); |
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74 } |
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75 |
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76 /** |
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77 * Attempts to establish a connection with the data source that this |
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78 * DataSource object represents. |
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79 * |
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80 * @param username the username to use |
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81 * @param password the password to use |
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82 * @return a MonetConnection |
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83 * @throws SQLException if connecting to the database fails |
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84 */ |
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85 @Override |
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86 public Connection getConnection(final String username, final String password) |
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87 throws SQLException |
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88 { |
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89 if (loginTimeout > 0) { |
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90 /// could enable Socket.setSoTimeout(int timeout) here... |
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91 } |
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92 final Properties props = new Properties(); |
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93 props.put("user", username); |
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94 props.put("password", password); |
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95 |
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96 return driver.connect(url, props); |
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97 } |
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98 |
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99 |
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100 /** |
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101 * Gets the maximum time in seconds that this data source can wait while |
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102 * attempting to connect to a database. |
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103 * |
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104 * @return login timeout default is 0 (infinite) |
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105 */ |
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106 @Override |
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107 public int getLoginTimeout() { |
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108 return loginTimeout; |
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109 } |
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110 |
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111 /** |
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112 * Sets the maximum time in seconds that this data source will wait while |
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113 * attempting to connect to a database. |
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114 * |
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115 * @param seconds the number of seconds to wait before aborting the connect |
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116 */ |
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117 @Override |
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118 public void setLoginTimeout(final int seconds) { |
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119 loginTimeout = seconds; |
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120 } |
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121 |
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122 /** |
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123 * Retrieves the log writer for this DataSource object. |
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124 * |
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125 * @return null, since there is no log writer |
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126 */ |
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127 @Override |
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128 public PrintWriter getLogWriter() { |
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129 return null; |
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130 } |
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131 |
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132 /** |
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133 * Sets the log writer for this DataSource object to the given |
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134 * java.io.PrintWriter object. |
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135 * |
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136 * @param out a PrintWriter - ignored |
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137 */ |
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138 @Override |
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139 public void setLogWriter(final PrintWriter out) { |
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140 } |
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141 |
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142 /** |
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143 * Sets the password to use when connecting. There is no getter |
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144 * for obvious reasons. |
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145 * |
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146 * @param password the password |
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147 */ |
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148 public void setPassword(final String password) { |
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149 this.password = password; |
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150 } |
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151 |
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152 /** |
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153 * Gets the username |
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154 * |
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155 * @return the username |
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156 */ |
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157 public String getUser() { |
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158 return user; |
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159 } |
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160 |
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161 /** |
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162 * Sets the username |
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163 * |
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164 * @param user the username |
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165 */ |
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166 public void setUser(final String user) { |
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167 this.user = user; |
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168 } |
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169 |
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170 /** |
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171 * Gets the connection URL |
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172 * |
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173 * @return the connection URL |
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174 */ |
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175 public String getURL() { |
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176 return url; |
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177 } |
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178 |
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179 /** |
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180 * Sets the connection URL |
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181 * |
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182 * @param url the connection URL |
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183 */ |
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184 public void setDatabaseName(final String url) { |
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185 this.url = url; |
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186 } |
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187 |
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188 /** |
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189 * Gets the description |
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190 * |
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191 * @return the description |
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192 */ |
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193 public String getDescription() { |
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194 return description; |
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195 } |
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196 |
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197 /** |
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198 * Sets the description |
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199 * |
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200 * @param description the description |
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201 */ |
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202 public void setDescription(final String description) { |
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203 this.description = description; |
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204 } |
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205 |
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206 /** |
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207 * Return the parent Logger of all the Loggers used by this data |
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208 * source. This should be the Logger farthest from the root Logger |
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209 * that is still an ancestor of all of the Loggers used by this data |
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210 * source. Configuring this Logger will affect all of the log |
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211 * messages generated by the data source. In the worst case, this |
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212 * may be the root Logger. |
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213 * |
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214 * @return the parent Logger for this data source |
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215 * @throws SQLFeatureNotSupportedException if the data source does |
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216 * not use java.util.logging |
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217 */ |
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218 @Override |
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219 public java.util.logging.Logger getParentLogger() throws SQLFeatureNotSupportedException { |
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220 throw newSQLFeatureNotSupportedException("getParentLogger"); |
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221 } |
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222 } |