criteria">Path</a>&lt;<a href="../../../../javax/persistence/criteria/MapJoin.html" title="type parameter in MapJoin">K</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">MapJoin.</span><code><span class="memberNameLink"><a href="../../../../javax/persistence/criteria/MapJoin.html#key--">key</a></span>()</code>
<div class="block">Create a path expression that corresponds to the map key.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>&lt;X,T extends X&gt;<br><a href="../.