i/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">An <i>Accumulator</i> version of the standard <i>exec()</i> method. Like <i>exec()</i>,
 accumulator is called with a bag of Sketch Tuples. Unlike <i>exec()</i>, it doesn't serialize the
 sketch at the end. Instead, it can be called multiple times, each time with another bag of
 Sketch Tuples to be input to the Union.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</spa