Edit File: EnvClose.html
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!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> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Closing Database Environments</title> <link rel="stylesheet" href="gettingStarted.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.62.4" /> <link rel="home" href="index.html" title="Getting Started with Berkeley DB" /> <link rel="up" href="Env.html" title="Chapter 2. Database Environments" /> <link rel="previous" href="Env.html" title="Chapter 2. Database Environments" /> <link rel="next" href="EnvProps.html" title="Environment Properties" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Closing Database Environments</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="Env.html">Prev</a> </td> <th width="60%" align="center">Chapter 2. Database Environments</th> <td width="20%" align="right"> <a accesskey="n" href="EnvProps.html">Next</a></td> </tr> </table> <hr /> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="EnvClose"></a>Closing Database Environments</h2> </div> </div> <div></div> </div> <p> You close your environment by calling the <tt class="methodname">Environment.close()</tt> method. This method performs a checkpoint, so it is not necessary to perform a sync or a checkpoint explicitly before calling it. For information on checkpoints, see the <i class="citetitle">Berkeley DB Java Edition Getting Started with Transaction Processing</i> guide. For information on syncs, see <span> the <i class="citetitle">Getting Started with Transaction Processing for Java</i> guide. </span> </p> <pre class="programlisting">import com.sleepycat.db.DatabaseException; import com.sleepycat.db.Environment; ... try { if (myDbEnvironment != null) { myDbEnvironment.close(); } } catch (DatabaseException dbe) { // Exception handling goes here } </pre> <p>You should close your environment(s) only after all other database activities have completed and you have closed any databases currently opened in the environment.</p> <p> Closing the last environment handle in your application causes all internal data structures to be <span> released. </span> If there are any opened databases or stores, then DB will complain before closing them as well. At this time, any open cursors are also closed, and any on-going transactions are aborted. </p> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="Env.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="Env.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="EnvProps.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">Chapter 2. Database Environments </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> Environment Properties</td> </tr> </table> </div> </body> </html>
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