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| <p class="shortcomment cmt">Partition messages by applying group by function first.</p><div class="fullcomment"><div class="comment cmt"><p>Partition messages by applying group by function first.</p><p>For example:</p><pre><span class="kw">case</span> <span class="kw">class</span> People(name: <span class="std">String</span>, gender: <span class="std">String</span>) |
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| <span class="kw">object</span> Test{ |
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| <span class="kw">val</span> groupBy: (People <span class="kw">=></span> <span class="std">String</span>) = people <span class="kw">=></span> people.gender |
| <span class="kw">val</span> partitioner = GroupByPartitioner(groupBy) |
| }</pre></div></div> |
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