<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Class Poco::Data::SQLite::SessionImpl</title> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="language" content="en"/> <meta name="date" content="2009-11-24"/> <meta name="generator" content="PocoDoc"/> <link rel="stylesheet" href="css/styles.css" type="text/css"/> </head> <body bgcolor="#ffffff" leftmargin="0" topmargin="0"> <div class="header"> <h1 class="namespace"><a href="Poco.Data.SQLite.html" class="namespace">Poco::Data::SQLite</a></h1> <h1 class="symbol">class SessionImpl</h1> </div> <div class="body"> <p> <b>Library:</b> Data/SQLite<br /> <b>Package:</b> SQLite<br /> <b>Header:</b> Poco/Data/SQLite/SessionImpl.h</p> <h2>Description</h2> <div class="description"> <p>Implements <a href="Poco.Data.SQLite.SessionImpl.html" title="class Poco::Data::SQLite::SessionImpl">SessionImpl</a> interface. </p> <p>The following properties are supported: </p> <ul> <li>transactionMode: "DEFERRED", "IMMEDIATE" or "EXCLUSIVE" </li> <li>maxRetryAttempts: maximum number of attemptes to retry an operation if database is locked or busy. Between retry attempts, sleep for a random time. </li> <li>minRetrySleep: the minimum time (in milliseconds) waited between two retry attempts. </li> <li>maxRetrySleep: the maximum time (in milliseconds) waited between two retry attempts. </li> </ul> <p>Notes: For automatic retries to work, you should start every transaction that at one point will write to the database with IMMEDIATE or EXCLUSIVE mode. </p> </div> <h2>Inheritance</h2> <p><b>Direct Base Classes: </b>Poco::Data::AbstractSessionImpl < SessionImpl ></p> <p><b>All Base Classes: </b>Poco::Data::AbstractSessionImpl < SessionImpl ></p> <h2>Member Summary</h2> <p><b>Member Functions: </b><a href="Poco.Data.SQLite.SessionImpl.html#2020" title="Poco::Data::SQLite::SessionImpl::begin()">begin</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2023" title="Poco::Data::SQLite::SessionImpl::close()">close</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2021" title="Poco::Data::SQLite::SessionImpl::commit()">commit</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2019" title="Poco::Data::SQLite::SessionImpl::createStatementImpl()">createStatementImpl</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2034" title="Poco::Data::SQLite::SessionImpl::getMaxRetryAttempts()">getMaxRetryAttempts</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2044" title="Poco::Data::SQLite::SessionImpl::getMaxRetrySleep()">getMaxRetrySleep</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2039" title="Poco::Data::SQLite::SessionImpl::getMinRetrySleep()">getMinRetrySleep</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2029" title="Poco::Data::SQLite::SessionImpl::getTransactionMode()">getTransactionMode</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2025" title="Poco::Data::SQLite::SessionImpl::isConnected()">isConnected</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2024" title="Poco::Data::SQLite::SessionImpl::isTransaction()">isTransaction</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2022" title="Poco::Data::SQLite::SessionImpl::rollback()">rollback</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2031" title="Poco::Data::SQLite::SessionImpl::setMaxRetryAttempts()">setMaxRetryAttempts</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2041" title="Poco::Data::SQLite::SessionImpl::setMaxRetrySleep()">setMaxRetrySleep</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2036" title="Poco::Data::SQLite::SessionImpl::setMinRetrySleep()">setMinRetrySleep</a>, <a href="Poco.Data.SQLite.SessionImpl.html#2026" title="Poco::Data::SQLite::SessionImpl::setTransactionMode()">setTransactionMode</a></p> <h2>Enumerations</h2> <h3><i>Anonymous</i></h3> <div class="description"> <p></p> </div> <p class="decl"><a name="2013">DEFAULT_MAX_RETRY_ATTEMPTS</a> = 0</p> <div class="description"> <p>Default maximum number of attempts to retry an operation if the database is locked. </p> </div> <p class="decl"><a name="2014">DEFAULT_MIN_RETRY_SLEEP</a> = 2</p> <div class="description"> <p>Default minimum sleep interval (milliseconds) between retry attempts. </p> </div> <p class="decl"><a name="2015">DEFAULT_MAX_RETRY_SLEEP</a> = 20</p> <div class="description"> <p>Default maximum sleep interval (milliseconds) between retry attempts. </p> </div> <h2>Constructors</h2> <h3><a name="2016">SessionImpl</a></h3> <p class="decl"><a href="Poco.Data.SQLite.SessionImpl.html" title="class Poco::Data::SQLite::SessionImpl">SessionImpl</a>(<br /> const std::string & fileName<br />);</p> <div class="description"> <p>Creates the <a href="Poco.Data.SQLite.SessionImpl.html" title="class Poco::Data::SQLite::SessionImpl">SessionImpl</a>. Opens a connection to the database. </p> </div> <h2>Destructor</h2> <h3><a name="2018">~SessionImpl</a></h3> <p class="decl">~<a href="Poco.Data.SQLite.SessionImpl.html" title="class Poco::Data::SQLite::SessionImpl">SessionImpl</a>();</p> <div class="description"> <p>Destroys the <a href="Poco.Data.SQLite.SessionImpl.html" title="class Poco::Data::SQLite::SessionImpl">SessionImpl</a>. </p> </div> <h2>Member Functions</h2> <h3><a name="2020">begin</a></h3> <p class="decl">void begin();</p> <div class="description"> <p>Starts a transaction. </p> </div> <h3><a name="2023">close</a></h3> <p class="decl">void close();</p> <div class="description"> <p>Closes the session. </p> </div> <h3><a name="2021">commit</a></h3> <p class="decl">void commit();</p> <div class="description"> <p>Commits and ends a transaction. </p> </div> <h3><a name="2019">createStatementImpl</a></h3> <p class="decl"><a href="Poco.Data.StatementImpl.html" title="class Poco::Data::StatementImpl">Poco::Data::StatementImpl</a> * createStatementImpl();</p> <div class="description"> <p>Returns an <a href="Poco.Data.SQLite.html" title="namespace Poco::Data::SQLite">SQLite</a> <a href="Poco.Data.StatementImpl.html" title="class Poco::Data::StatementImpl">StatementImpl</a>. </p> </div> <h3><a name="2025">isConnected</a></h3> <p class="decl">bool isConnected();</p> <div class="description"> <p>Returns true if and only if connected, false otherwise. </p> </div> <h3><a name="2024">isTransaction</a></h3> <p class="decl">bool isTransaction();</p> <div class="description"> <p>Returns true if and only if a transaction is in progress. </p> </div> <h3><a name="2022">rollback</a></h3> <p class="decl">void rollback();</p> <div class="description"> <p>Aborts a transaction. </p> </div> <h3><a name="2034">getMaxRetryAttempts</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> getMaxRetryAttempts(<br /> const std::string & prop<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2044">getMaxRetrySleep</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> getMaxRetrySleep(<br /> const std::string & prop<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2039">getMinRetrySleep</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> getMinRetrySleep(<br /> const std::string & prop<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2029">getTransactionMode</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> getTransactionMode(<br /> const std::string & prop<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2031">setMaxRetryAttempts</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">void setMaxRetryAttempts(<br /> const std::string & prop,<br /> const <a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> & value<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2041">setMaxRetrySleep</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">void setMaxRetrySleep(<br /> const std::string & prop,<br /> const <a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> & value<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2036">setMinRetrySleep</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">void setMinRetrySleep(<br /> const std::string & prop,<br /> const <a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> & value<br />);</p> <div class="description"> <p></p> </div> <h3><a name="2026">setTransactionMode</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">void setTransactionMode(<br /> const std::string & prop,<br /> const <a href="Poco.Any.html" title="class Poco::Any">Poco::Any</a> & value<br />);</p> <div class="description"> <p></p> </div> <p class="footer">POCO C++ Libraries 1.3.6-all<br /> Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p> </div> </body> </html>
