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Release 5.2.28 on 6/10/2011
2011-09-13 17:44:24 +00:00
<?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>XA Introduction</title>
<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
<link rel="start" href="index.html" title="Berkeley DB Programmer's Reference Guide" />
<link rel="up" href="xa.html" title="Chapter 13.  Distributed Transactions" />
<link rel="prev" href="xa_build.html" title="Building a Global Transaction Manager" />
<link rel="next" href="xa_xa_config.html" title="Configuring Berkeley DB with the Tuxedo System" />
</head>
<body>
<div xmlns="" class="navheader">
<div class="libver">
Release 5.3.21 5/11/2012
2012-11-14 21:35:20 +00:00
<p>Library Version 11.2.5.3</p>
Release 5.2.28 on 6/10/2011
2011-09-13 17:44:24 +00:00
</div>
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">XA Introduction</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="xa_build.html">Prev</a> </td>
<th width="60%" align="center">Chapter 13. 
Distributed Transactions
</th>
<td width="20%" align="right"> <a accesskey="n" href="xa_xa_config.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="xa_xa_intro"></a>XA Introduction</h2>
</div>
</div>
</div>
<p>Berkeley DB can be used as an XA-compliant resource manager. The XA
implementation is known to work with the Tuxedo transaction
manager.</p>
<p>The XA support is encapsulated in the resource manager switch
db_xa_switch, which defines the following functions:</p>
<div class="itemizedlist">
<ul type="disc">
<li><span class="emphasis"><em>__db_xa_close.</em></span> Close the resource manager.</li>
<li><span class="emphasis"><em>__db_xa_commit. </em></span> Commit the specified transaction.</li>
<li><span class="emphasis"><em>__db_xa_complete.</em></span> Wait for asynchronous operations to complete.</li>
<li><span class="emphasis"><em>__db_xa_end. </em></span> Disassociate the application from a transaction.</li>
<li><span class="emphasis"><em>__db_xa_forget.</em></span> Forget about a transaction that was heuristically completed. (Berkeley DB does not support heuristic completion.)</li>
<li><span class="emphasis"><em>__db_xa_open.</em></span> Open the resource manager.</li>
<li><span class="emphasis"><em>__db_xa_prepare.</em></span> Prepare the specified transaction.</li>
<li><span class="emphasis"><em>__db_xa_recover.</em></span> Return a list of prepared, but not yet committed transactions.</li>
<li><span class="emphasis"><em>__db_xa_rollback.</em></span> Abort the specified transaction.</li>
<li><span class="emphasis"><em>__db_xa_start.</em></span> Associate the application with a transaction.</li>
</ul>
</div>
<p>The Berkeley DB resource manager does not support the following optional
XA features:</p>
<div class="itemizedlist">
<ul type="disc">
<li>Asynchronous operations</li>
<li>Transaction migration</li>
</ul>
</div>
<p>The Tuxedo System is available from <a class="ulink" href="http://www.oracle.com/us/bea/index.html" target="_top">Oracle BEA Systems</a>.</p>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="xa_build.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="xa.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="xa_xa_config.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">Building a Global Transaction Manager </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> Configuring Berkeley DB with the Tuxedo System</td>
</tr>
</table>
</div>
</body>
</html>
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