interface <span class="strong">ShardResultTransformer&lt;T,R&gt;</span></pre>
<div class="block">A <code>ShardResultTransformer</code> is responsible for transforming a grouped shard result into group related
 structures (such as <a href="http://lucene.apache.org/core/5_1_0/grouping/org/apache/lucene/search/grouping/TopGroups.html?is-external=true" title="class or interface in org.apache.lucene.search.grouping"><code>TopGroups</code></a> and <a href="http://lucene.apache.org/core/5_1_0/grouping/org/apache/l