<span class="line"><span class="cl"><span class="w"></span><span class="p">}</span><span class="w">
</span></span></span></code></pre></div><p>Let&rsquo;s now look at the implementation of the main method,
<code>processElement()</code>, in some detail.</p>
<p>In the <a href="/news/2020/01/15/demo-fraud-detection.html#dynamic-data-partitioning">previous blog post</a>, we described how <code>DynamicKeyFunction</code> allowed
us to perform dynamic data partitioning based on the <code>groupingKeyNames</code>
pa