e="row"><code><span class="memberNameLink"><a href="#readExternal(java.io.ObjectInput)">readExternal</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/ObjectInput.html?is-external=true" title="class or interface in java.io" class="externalLink">ObjectInput</a>&nbsp;in)</code></th>
<td class="colLast">
<div class="block">Redirects the default java serialization via externalizable to our default
 hadoop writable serialization for efficient broadcast/rdd deserializ