href="../metamodel/Attribute.html" title="interface in jakarta.persistence.metamodel">Attribute</a>&lt;? super <a href="../Graph.html" title="type parameter in Graph">T</a>,<wbr>Y&gt;&nbsp;attribute)</code></div>
<div class="col-last even-row-color">
<div class="block">Get an existing attribute node for the given attribute, or add
 a new attribute node if there is no existing node.</div>
</div>
<div class="col-first odd-row-color"><code>&lt;Y&gt;&nbsp;<a href="../AttributeNode.html" title="interface in jaka