lower bound that corresponds to <a href="#getLowerBound()"><code>getLowerBound()</code></a>.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>lower bound restriction type, never null</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getUpperBoundType()">
<h3>getUpperBoundType</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="BoundType.html" title="enum class in io.permazen.util">BoundType</a></span>&nbsp;<span class="element-name">getUp