:dataTable id="tbl" rowStyleClass="#{i.stock eq 0 ?'noDisplayRow' : ''}" value="#{storeReportsStock.stocks}" var="i"  >
                                <f:facet name="header">
                                    <h:outputLabel value="#{storeReportsStock.department.name} :&emsp; Department Stock By Batch"/>  
                                </f:facet>

                                <p:column headerText="Item"  >
                                    <f:facet name="header">
                                   