annotate src/main/java/nl/cwi/monetdb/jdbc/MonetDataSource.java @ 102:08bc9009d190 embedded

Merged with default
author Pedro Ferreira <pedro.ferreira@monetdbsolutions.com>
date Fri, 13 Jan 2017 18:16:30 +0100 (2017-01-13)
parents eeb71f7d36bf b9b35ca2eec2
children 8af0a7387b4e
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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 - 2017 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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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 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
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35 private String user;
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36 private String password; // insecure, but how to do it better?
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37 private String description = "MonetDB database";
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38 private String url = "jdbc:monetdb://localhost/";
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39 private int loginTimeout;
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40 private boolean isEmbedded;
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41 private final MonetDriver driver = new MonetDriver();
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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 public MonetDataSource() {}
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50
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51 /**
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52 * Attempts to establish a connection with the data source that this DataSource object represents.
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53 *
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54 * @return a MonetConnection
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55 * @throws SQLException if connecting to the database fails
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56 */
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57 @Override
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58 public Connection getConnection() throws SQLException {
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59 return getConnection(user, password);
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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 DataSource object represents.
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64 *
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65 * @param username the username to use
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66 * @param password the password to use
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67 * @return a MonetConnection
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68 * @throws SQLException if connecting to the database fails
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69 */
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70 @Override
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71 public Connection getConnection(String username, String password) throws SQLException {
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72 Properties props = new Properties();
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73 props.put("user", username);
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74 props.put("password", password);
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75 if (loginTimeout > 0) {
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76 props.put("so_timeout", Integer.toString(loginTimeout));
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77 }
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78 if(isEmbedded) {
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79 props.put("embedded", "true");
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80 }
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81 return driver.connect(url, props);
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82 }
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83
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84 /**
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85 * Gets the maximum time in seconds that this data source can wait while attempting to connect to a database.
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86 *
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87 * @return login timeout default is 0 (infinite)
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88 */
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89 @Override
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90 public int getLoginTimeout() {
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91 return loginTimeout;
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92 }
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93
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94 /**
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95 * Sets the maximum time in seconds that this data source will wait while attempting to connect to a database.
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96 *
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97 * @param seconds the number of seconds to wait before aborting the connect
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98 */
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99 @Override
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100 public void setLoginTimeout(int seconds) {
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101 loginTimeout = seconds;
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102 }
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103
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104 /**
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105 * Retrieves the log writer for this DataSource object.
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106 *
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107 * @return null, since there is no log writer
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108 */
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109 @Override
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110 public PrintWriter getLogWriter() {
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111 return null;
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112 }
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113
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114 /**
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115 * Sets the log writer for this DataSource object to the given java.io.PrintWriter object.
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116 *
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117 * @param out a PrintWriter - ignored
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118 */
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119 @Override
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7307caacc2d5 Intermediary commit. Cross-implementation interface (for mapi connection with the old protocol, mapi connection with the new protocol and the embedded connection) almost done. The mcl layer processing is more memory efficient now.
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120 public void setLogWriter(PrintWriter out) {}
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121
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122 /**
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123 * Sets the password to use when connecting. There is no getter
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124 * for obvious reasons.
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125 *
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126 * @param password the password
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127 */
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128 public void setPassword(String password) {
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129 this.password = password;
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130 }
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131
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132 /**
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133 * Gets the username
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134 *
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135 * @return the username
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136 */
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137 public String getUser() {
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138 return user;
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139 }
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140
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141 /**
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142 * Sets the username
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143 *
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144 * @param user the username
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145 */
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146 public void setUser(String user) {
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147 this.user = user;
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148 }
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149
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150 /**
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151 * Gets the connection URL
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152 *
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153 * @return the connection URL
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154 */
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155 public String getURL() {
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156 return url;
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157 }
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158
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159 /**
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160 * Sets the connection URL
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161 *
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162 * @param url the connection URL
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163 */
93
eeb71f7d36bf Fixed a bug on the JDBC MAPI connection from the old code! Fixed the connection properties for an JDBC Embedded connection. To start a JDBC Embedded connection, the user must start the embedded database beforehand with the method MonetDBEmbeddedDatabase.StartDatabase().
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164 public void setURL(String url) {
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165 this.url = url;
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166 }
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167
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168 /**
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169 * Gets the description
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170 *
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171 * @return the description
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172 */
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173 public String getDescription() {
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174 return description;
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175 }
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176
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177 /**
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178 * Sets the description
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179 *
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180 * @param description the description
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181 */
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182 public void setDescription(String description) {
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183 this.description = description;
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184 }
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185
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2b5e32efb1a4 Made all the mappings for the MAPI connection, now it needs to be added on the Embedded connection. Changed the compilation target to 1.8 because of the timezones. Implemented some JDBC methods as well.
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186 /**
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187 * Gets the embedded connection directory. If not, then a MAPI connection will be created instead.
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188 *
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189 * @return If the connection will be embedded. If not, then a MAPI connection will be created instead.
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190 */
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191 public boolean isEmbedded() {
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192 return isEmbedded;
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193 }
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194
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195 /**
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196 * Sets the connection to be embedded
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197 *
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198 * @param isEmbedded A boolean to indicate if the connection will be embedded
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199 */
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200 public void setIsEmbedded(boolean isEmbedded) {
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201 this.isEmbedded = isEmbedded;
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202 }
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203
2b5e32efb1a4 Made all the mappings for the MAPI connection, now it needs to be added on the Embedded connection. Changed the compilation target to 1.8 because of the timezones. Implemented some JDBC methods as well.
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204 /**
0
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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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86967be24645 Ready to start testing the old mapi connection. After passing the tests. The embedded integration will be very straightforward.
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213 * @throws SQLFeatureNotSupportedException if the data source does not use java.util.logging
0
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214 */
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215 @Override
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216 public Logger getParentLogger() throws SQLFeatureNotSupportedException {
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217 throw new SQLFeatureNotSupportedException("java.util.logging not in use", "0A000");
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218 }
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219 }