<!--$Id: xa_intro.html,v 1.1.1.1 2003/02/15 04:56:05 zarzycki Exp $--> <!--Copyright 1997-2002 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB Reference Guide: XA Introduction</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++"> </head> <body bgcolor=white> <a name="2"><!--meow--></a><a name="3"><!--meow--></a> <table width="100%"><tr valign=top> <td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Distributed Transactions</dl></h3></td> <td align=right><a href="../../ref/xa/build.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../reftoc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/xa/xa_config.html"><img src="../../images/next.gif" alt="Next"></a> </td></tr></table> <p> <h1 align=center>XA Introduction</h1> <p>Berkeley DB can be used as an XA-compliant resource manager. The XA implementation is known to work with the Tuxedo(tm) transaction manager. <p>The XA support is encapsulated in the resource manager switch db_xa_switch, which defines the following functions: <p><blockquote><pre>__db_xa_close Close the resource manager. __db_xa_commit Commit the specified transaction. __db_xa_complete Wait for asynchronous operations to complete. __db_xa_end Disassociate the application from a transaction. __db_xa_forget Forget about a transaction that was heuristically completed. (Berkeley DB does not support heuristic completion.) __db_xa_open Open the resource manager. __db_xa_prepare Prepare the specified transaction. __db_xa_recover Return a list of prepared, but not yet committed transactions. __db_xa_rollback Abort the specified transaction. __db_xa_start Associate the application with a transaction. </pre></blockquote> <p>The Berkeley DB resource manager does not support the following optional XA features: <p><ul type=disc> <li>Asynchronous operations <li>Transaction migration </ul> <p>The Tuxedo System is available from <a href="http://www.beasys.com">BEA Systems, Inc.</a> <p>For additional information on Tuxedo, see <p><blockquote><i>Building Client/Server Applications Using Tuxedo</i>, by Hall (John Wiley & Sons, Inc.).</blockquote> <p>For additional information on XA Resource Managers, see <p><blockquote>X/Open CAE Specification <i>Distributed Transaction Processing: The XA Specification</i>, X/Open Document Number: XO/CAE/91/300.</blockquote> <p>For additional information on The Tuxedo System, see <p><blockquote><i>The Tuxedo System</i>, by Andrade, Carges, Dwyer and Felts (Addison Wesley Longman).</blockquote> <table width="100%"><tr><td><br></td><td align=right><a href="../../ref/xa/build.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../reftoc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/xa/xa_config.html"><img src="../../images/next.gif" alt="Next"></a> </td></tr></table> <p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> </body> </html>