span class="typeNameLabel">Payload</span></pre>
<div class="block">Payload type that can be attached to a given
 constraint declaration.
 <p>
 Payloads are typically used to carry on metadata information
 consumed by a validation client.
 </p>
 With the exception of the <a href="../../javax/validation/valueextraction/Unwrapping.html" title="interface in javax.validation.valueextraction"><code>Unwrapping</code></a> payload types, the use of payloads is not
 considered portable.</div>
<dl>
<dt><span class="si