s-external=true" title="class or interface in java.util.function">Function</a>&lt;<a href="../../../../../javax/enterprise/inject/Instance.html" title="interface in javax.enterprise.inject">Instance</a>&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;,U&gt;&nbsp;callback)</pre>
<div class="block">Set a callback to create a bean instance.
 <p>
 The <a href="../../../../../javax/enterprise/inject/Instance.html" 