Converter in rich:dataTable

[lmk]

Hello

Id like to convert a rich;dataTable column field from Double to Integer,

<rich:column>
<f:facet name="header">
<h:outputText value="quantity" />
</f:facet>
<h:outputText value="#{list.quantity}" >
 <f:convertNumber maxFractionDigits="0"/>
</h:outputText>
</rich:column>

but value is shown like 0.0 ,5000000.0 or null ..

is some things wrong on my code..?

environement:
rich faces 3.1.4.GA
facelets
myfaces 1.1.5.

regards!

[lmk]

resolved..

thanks