per.html" title="class in jakarta.el"><code>VariableMapper</code></a> provides a flexible mechanism to support the notion of
<strong>Jakarta Expression Language variables</strong>.
</p>
 
<p>
A Jakarta Expression Language variable does not directly refer to a model object that can then
be resolved by an <code>ELResolver</code>. Instead, it refers to a Jakarta Expression Language
expression. The evaluation of that Jakarta Expression Language expression gives the
Jakarta Expression Language variable its value