href="Predicate.html" title="interface in jakarta.persistence.criteria">Predicate</a></span>&nbsp;<span class="element-name">isNull</span>()</div>
<div class="block">Create a predicate to test whether the expression is null.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>predicate testing whether the expression is null</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isNotNull()">
<h3>isNotNull</h3>
<div class="member-signature"><span class="return-type"><a href="Predicate.html" title="interface