de.
        </p>
<div class="section">
<div class="titlepage"><div><div><h5 class="title">
<a name="log.detailed.sink_frontends.basic_services.filtering"></a><a class="link" href="sink_frontends.html#log.detailed.sink_frontends.basic_services.filtering" title="Filtering">Filtering</a>
</h5></div></div></div>
<p>
            All sink frontends support filtering. The user can specify a custom filtering
            function object or a filter constructed with the <a class="link" href="expressions.html" title="