Is it possible to derive values for a column header coming from an EL ("#{item.columnValue}" ). I tried to do it using rich:datatable and rich:column, but it didnt work at all.

 <rich:dataTable width="100%" id="dataModelTable" rows="10" columnClasses="tableColumnCatItems"
 value="#{dataModel.tableModel}" var="item" binding="#{dataModel.table}" >
 <f:facet name="header">
 <rich:columnGroup>
 <h:column>
 <h:outputText value="No" />
 </h:column>
 <h:column>
 <h:outputText value="Item" />
 </h:column>
 <h:column>
 <h:outputText value="Image" />
 </h:column>
 <h:column>
 <h:outputText value="Price" />
 <h:outputText value="#{item.currency}" />
 </h:column>
 </rich:columnGroup>
 </f:facet>

 <rich:column>
 <h:outputText value="#{item.number}" />
 </rich:column>
 <rich:column>
 <h:outputText value="#{item.description}" />
 </rich:column>


 <rich:column>
 <h:outputText value="#{item.image}" />
 </rich:column>
 <rich:column>
 <h:outputText value="#{item.price}" />
 </rich:column>

</rich:dataTable>

I want to display the currency for the price and the currency value ,though it is the same for all the items, will come from the back end (which i want to get using EL ).