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<h1>Locks In Db4o</h1>
<p>In db4o locks can be implemented
with the help of <a href="../../client-server/semaphores.html" class="wikiLink">Semaphores</a>. Though you cannot
implement page or cluster locking, you can still vary the range of locking by
using different semaphore names. For example:</p>
<ol>
<li>The following semaphore will
lock all the objects of a class:
<span name="cs_wiki_filter" csw_filters="net">
<p>.NET:</p>
<p><code>extObjectContainer.SetSemaphore(typeof(Pilot).Name,
3000)</code></p>
</span>
</li>
<li>This semaphore will lock a single object
<p><span name="cs_wiki_filter" csw_filters="net"></p>
<p>.NET: </p>
<p><code>extObjectContainer.SetSemaphore("LOCK_"+objectContainer.Ext().GetID(pilot),
3000)</code></p>
</span>
</li>
</ol></div>
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This revision (1) was last Modified 2007-05-22T12:02:20 by Tetyana.
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