how to make page footer shows on the last page of the report

[jasperbox]

I have the following page footer in the master report, and the master report has other sub-reports. I only want the page footer to show ONCE on the last page of the report. However, it turns out it shows on every single page. Any ideas? thanks a lot!!

 <pageFooter>
  <band height="50">
   <rectangle>
    <reportElement x="2" y="0" width="465" height="40"/>
   </rectangle>
   <staticText>
    <reportElement x="1" y="0" width="463" height="39"/>
    <textElement/>
    <text><![CDATA[This is the sample footer]]></text>
   </staticText>
  </band>
 </pageFooter>

 

[notrolls]

it's called last page footer men;