ock">Get the id number from the ref. Old style refs have only one id number.
 If this is a new style ref, the first id number is returned.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the id number from the ref.</dd>
</dl>
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<h4>ids</h4>
<pre>public&nbsp;int[]&nbsp;ids()</pre>
<div class="block">Get the array of id numbers from the ref. If this is an old style ref,
 the array is of length 1. If this