protected <a href="http://download.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="http://download.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/solr/analytics/accumulator/BasicAccumulator.html#hiddenExpressions">hiddenExpressions</a></strong></code>&nbsp;</td>
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