e constraints of the same type.
 <p>
 The index represents the index of the constraint in the
 <code>value()</code> array.
 <p>
 By default, no index is defined and the single constraint declaration
 is targeted.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>constraint declaration index if multivalued annotation is used</dd>
</dl>
<dl>
<dt>Default:</dt>
<dd>-1</dd>
</dl>
</li>
</ul>
</li>
</ul>
</section>
</li>
</ul>
</div>
</div>
</main>
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