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<h1>NQ Optimization On CF2.0</h1>
<p><font color="#990000">This topic applies to .NET version only</font></p>
<span name="cs_wiki_filter" csw_filters="net">
<p>Due to some platform limitations, CompactFramework 2.0 users using the more
convenient delegate based Native Query syntax that want their queries to be
optimized are required to run the Db4oTool.exe command line utility on their
assemblies prior to deploying them. </p>
<p>
The utility, which can be found in
the /bin folder of .NET distribution, is required because the CompactFramework
API does not expose any of the delegate metadata needed by the Native Query
optimizer. The tool works by augmenting the bytecode with the necessary delegate
metadata and replacing ObjectContainer#Query invocations with
invocations to a lower level method that makes use of the additional
information.</p>
<p>
The tool can be easily integrated inside Visual Studio.NET
2005 as a Post Build tool by following the simple steps below:</p>
<ul>
<li>Right
click the project you want to enable Native Query optimization for</li>
<li>Select<b>'Properties'</b></li>
<li>In the Properties Page select the<b>'Build
Events'</b> tab</li>
<li>In the<b>'Post-build event command line'</b>text box insert
the following text <b>"/bin/Db4oTool.exe -nq $(TargetPath)"</b> without the quotes and replacing
to the correct value for your system.</li>
</ul>
<p>A complete example can be found in the src\Db4oTool\Db4oTool.Example directory of the distribution. </p>
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This revision (9) was last Modified 2007-11-28T14:39:00 by Tetyana.
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