ass="block">If the columns are not in sorted incrementing order this method can be called to get the sorting index for this
 set of column indexes.
 
 The returned list should be the mapping of elements for each column to where it should be after sorting.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A Reordered index.</dd>
</dl>
</li>
</ul>
<a id="isSorted()">
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<h4>isSorted</h4>
<pre class="methodSignature">public&nbsp;boolean