, return -1.
 </p></div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="DataModel.html#getRowCount()">getRowCount</a></code>&nbsp;in class&nbsp;<code><a href="DataModel.html" title="class in jakarta.faces.model">DataModel</a>&lt;<a href="IterableDataModel.html" title="type parameter in IterableDataModel">E</a>&gt;</code></dd>
<dt>Returns:</dt>
<dd>the number of rows of data represented by this <code>DataModel</code></dd>
<dt>Throws:</dt>
<dd><code><a href="../FacesException.html" title="class 