n></span></h4><div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Used to start and stop measurement collection.</p><p>Implementations of a measurement or measurement collection should extend this class, and probably mix in
<a href="../persistence/CorePersistenceAware.html" name="com.workday.warp.persistence.CorePersistenceAware" id="com.workday.warp.persistence.CorePersistenceAware" class="extype">com.workday.warp.persistence.CorePersistenceAware</a>. Note that the collection of a measurem