l">Description</th>
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<th class="colFirst" scope="row"><a href="class-use/NavigableIndex.html#com.googlecode.cqengine.index.navigable">NavigableIndex</a></th>
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<div class="block">An index backed by a <a href="http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentSkipListMap.html?is-external=true" title="class or interface in java.util.concurrent" class="externalLink"><code>ConcurrentSkipListMap</code></a>.</div>
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