l#NamedData">NamedData</a>&lt;T&gt;</code> if there isn't already one associated with the key.</p><p class="javadoc">Parameters:</p><table class="table table-bordered params"><tr><th style="width:25%;"><code>key</code></th><td><p>A key, which is also the <code>name</code> of a <code><a href="../../nb/ds/NamedData.html#NamedData">NamedData</a>&lt;T&gt;</code>.</p></td></tr><tr><th style="width:25%;"><code>value</code></th><td><p>A value, which will be stored in <code>data</code> of a <code><a href="../../nb/