<?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>Preface</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 Transaction Processing" /> <link rel="up" href="index.html" title="Getting Started with Berkeley DB Transaction Processing" /> <link rel="previous" href="index.html" title="Getting Started with Berkeley DB Transaction Processing" /> <link rel="next" href="introduction.html" title="Chapter 1. Introduction" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Preface</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="index.html">Prev</a> </td> <th width="60%" align="center"> </th> <td width="20%" align="right"> <a accesskey="n" href="introduction.html">Next</a></td> </tr> </table> <hr /> </div> <div class="preface" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title"><a id="preface"></a>Preface</h2> </div> </div> <div></div> </div> <div class="toc"> <p> <b>Table of Contents</b> </p> <dl> <dt> <span class="sect1"> <a href="preface.html#conventions">Conventions Used in this Book</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="preface.html#moreinfo">For More Information</a> </span> </dt> </dl> </dd> </dl> </div> <p> This document describes how to use transactions with your Berkeley DB applications. It is intended to describe how to transaction protect your application's data. The APIs used to perform this task are described here, as are the environment infrastructure and administrative tasks required by a transactional application. This book also describes multi-threaded <span>and multi-process</span> DB applications and the requirements they have for deadlock detection. </p> <p> This book is aimed at the software engineer responsible for writing a transactional DB application. </p> <p> This book assumes that you have already read and understood the concepts contained in the <span><i class="citetitle">Getting Started with Berkeley DB</i> guide.</span> </p> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="conventions"></a>Conventions Used in this Book</h2> </div> </div> <div></div> </div> <p> The following typographical conventions are used within in this manual: </p> <p> Class names are represented in <tt class="classname">monospaced font</tt>, as are <tt class="methodname">method names</tt>. For example: <span>"<tt class="methodname">DbEnv::open()</tt> is a <tt class="classname">DbEnv</tt> class method."</span> </p> <p> Variable or non-literal text is presented in <span class="emphasis"><em>italics</em></span>. For example: "Go to your <span class="emphasis"><em>DB_INSTALL</em></span> directory." </p> <p> Program examples are displayed in a <tt class="classname">monospaced font</tt> on a shaded background. For example: </p> <pre class="programlisting">typedef struct vendor { char name[MAXFIELD]; // Vendor name char street[MAXFIELD]; // Street name and number char city[MAXFIELD]; // City char state[3]; // Two-digit US state code char zipcode[6]; // US zipcode char phone_number[13]; // Vendor phone number } VENDOR; </pre> <p> In some situations, programming examples are updated from one chapter to the next. When this occurs, the new code is presented in <b class="userinput"><tt>monospaced bold</tt></b> font. For example: </p> <pre class="programlisting">typedef struct vendor { char name[MAXFIELD]; // Vendor name char street[MAXFIELD]; // Street name and number char city[MAXFIELD]; // City char state[3]; // Two-digit US state code char zipcode[6]; // US zipcode char phone_number[13]; // Vendor phone number <b class="userinput"><tt>char sales_rep[MAXFIELD]; // Name of sales representative char sales_rep_phone[MAXFIELD]; // Sales rep's phone number </tt></b> } VENDOR; </pre> <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"> <h3 class="title">Note</h3> <p> Finally, notes of special interest are represented using a note block such as this. </p> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="moreinfo"></a>For More Information</h3> </div> </div> <div></div> </div> <p> Beyond this manual, you may also find the following sources of information useful when building a transactional DB application: </p> <div class="itemizedlist"> <ul type="disc"> <li> <p> <a href="http://www.oracle.com/technology/documentation/berkeley-db/db/gsg/CXX/index.html" target="_top"> Getting Started with Berkeley DB for C++ </a> </p> </li> <li> <p> <a href="http://www.oracle.com/technology/documentation/berkeley-db/db/gsg_db_rep/CXX/index.html" target="_top"> Berkeley DB Getting Started with Replicated Applications for C++ </a> </p> </li> <li> <p> <a href="http://www.oracle.com/technology/documentation/berkeley-db/db/ref/toc.html" target="_top"> Berkeley DB Programmer's Reference Guide </a> </p> </li> <li> <p> <a href="http://www.oracle.com/technology/documentation/berkeley-db/db/api_cxx/frame.html" target="_top"> Berkeley DB C++ API </a> </p> </li> </ul> </div> </div> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="index.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="introduction.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">Getting Started with Berkeley DB Transaction Processing </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> Chapter 1. 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