ey don't have to belong to the same dataset.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>compare</code>&nbsp;in interface&nbsp;<code>java.util.Comparator</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>o1</code> - the first instance to compare</dd><dd><code>o2</code> - the second instance to compare</dd>
<dt><span class="strong">Returns:</span></dt><dd>returns -1 if o1 is smaller than o2, 0 if equal and +1
                  if greater</dd></dl>
</li>
</ul>
<a name="get