<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns:MadCap="http://www.madcapsoftware.com/Schemas/MadCap.xsd" MadCap:lastBlockDepth="2" MadCap:lastHeight="120" MadCap:lastWidth="624" MadCap:disableMasterStylesheet="true" MadCap:tocPath="Advanced Features|Enhancement Tools" MadCap:InPreviewMode="false" MadCap:RuntimeFileType="Topic" MadCap:TargetType="WebHelp" MadCap:PathToHelpSystem="../../../../" MadCap:HelpSystemFileName="index.xml" MadCap:SearchType="Stem">
<head><title>Db4oTool </title>
<script type="text/javascript">/* <![CDATA[ */
window.onload = function(){
var pathToFlash = $('html').attr('MadCap:PathToHelpSystem') + 'Content/Resources/Code/ZeroClipboard.swf';
ZeroClipboard.setMoviePath(pathToFlash);
function bindToClipBord(element,content){
var clip = new ZeroClipboard.Client();
clip.setText(content);
clip.glue(element);
};
if(location.protocol==='file:'){
$('.copylink-marker').remove();
} else{
$('.copylink-marker').each(function(){
var text = $(this).parent().parent().children('.prettyprint').html();
$(this).hover(function(){
bindToClipBord(this,text);
},
function(){});
});
}
prettyPrint();
};
/* ]]> */</script>
<link href="../../../SkinSupport/MadCap.css" rel="stylesheet" />
<link href="../../../Resources/Stylesheets/OnlineStyle.css" rel="stylesheet" />
<script src="../../../Resources/Code/prettify.js">
</script>
<script src="../../../Resources/Code/lang-vb.js">
</script>
<script src="../../../Resources/Code/jquery.min.js">
</script>
<script src="../../../Resources/Code/ZeroClipboard.js">
</script>
<script src="../../../SkinSupport/MadCapAll.js" type="text/javascript">
</script>
</head>
<body>
<p class="MCWebHelpFramesetLink" style="display: none;"><a href="../../../../index_CSH.html#advanced_topics/enhancement_tools/enhancement_for_.net/db4otool.htm" style="">Open topic with navigation</a>
</p>
<div class="MCBreadcrumbsBox"><span class="MCBreadcrumbsPrefix">You are here: </span><a class="MCBreadcrumbsLink" href="../../../advanced_topics.htm">Advanced Features</a><span class="MCBreadcrumbsDivider"> > </span><a class="MCBreadcrumbsLink" href="../../enhancement_tools.htm">Enhancement Tools</a><span class="MCBreadcrumbsDivider"> > </span><span class="MCBreadcrumbs">Db4oTool </span>
</div>
<p>
<script type="text/javascript">/*<![CDATA[*/document.write('<a href="' + location.href +'">');
document.write("Direct Link");
document.write('</a>');/*]]>*/</script>
</p>
<p>
</p>
<h1>Db4oTool</h1>
<p>Db4oTool.exe utility is distributed together with db4o .NET version and can be used for native query optimization and transparent activation instrumentation.</p>
<p>The main use-cases for Db4oTool are:</p>
<ol>
<li value="1"><a href="../../../basics/querying/native_queries/native_query_optimization/nq_build_time_optimisation.htm">Optimization of native queries</a> at build time. This will improve Native Query performance by cutting of query analyzing time during execution.</li>
<li value="2"><a href="../../../basics/querying/native_queries/native_query_optimization/nq_optimization_on_cf2.0.htm">Optimizing delegate native query syntax on CF2.0</a>. This optimization can only be done by Db4oTool as CompactFramework 2.0 API does not expose any of the delegate metadata needed for the optimization process.</li>
<li value="3"><a href="../../../basics/activation_concept/transparent_activation_framework.htm">Transparent Activation/Persistence</a> instrumentation. This will enable you to use transparent activation without modifying your classes or to use transparent activation on third-party classes.</li>
</ol>
<p>If you use Db4oTool for use-cases one and two you will be able to distribute your application without Db4objects.Db4o.NativeQueries.dll (the assembly where the Native Query runtime optimizer lives).</p>
<p>See how the command line options of the Db4oTool. <a href="db4otool/db4otool_usage.htm" target="" title="" alt="" class="MCXref" xrefformat="See "{paratext}"">See "Db4oTool Usage"</a>. You can call the db4o tool also from Visual Studio. <a href="db4otool/including_db4otool_in_the_build.htm" target="" title="" alt="" class="MCXref" xrefformat="See "{paratext}"">See "Including Db4oTool In The Build"</a></p>
<script type="text/javascript" src="../../../SkinSupport/MadCapBodyEnd.js">
</script>
</body>
</html>
