Problems with a conditional

[sirghost]

<h:outputText value="#{GestionCatalogos.empleadoGC.flag ? empleado.apaterno empleado.amaterno : empleado.cargos[0].unidadesOrgs[0].nombre}"></h:outputText>

i have this error: contain invalid expressions: javax.el.ELException: Error Parsing:

how can i concat empleado.apaterno and empleado.amaterno?
if i use only empleado.apaterno it's all ok, but i need empleado.apaterno and empleado.amaterno plz :(

btw i'm using a datatable:

 <rich:dataTable id="tabla"
 rendered="#{!empty GestionCatalogos.currentServicio}"
 onRowMouseOver="this.style.backgroundColor='#F1F1F1'"
 onRowMouseOut="this.style.backgroundColor='#{a4jSkin.tableBackgroundColor}'"
 cellpadding="0" cellspacing="0"
 width="800" border="0" var="empleado" value="#{GestionCatalogos.empleadoGC.empleados}">

Thx for advance

[nbelaevski]

Hello,

As far as I know the only way to concat something on the page is c:set usage like this <c:set var="string" value="#{str1}#{str2}">