show my var with @dataModelSelecion anotation in another page

[diogossh]

I'm having problems with a variable display with annotation @datamodelselecion in another page;

The code below is where usuario.xhtml shows a grid of Users. I am wanting to click on a row of the grid and take the information that User on a another page ... but the information is not shown ..... could someone help me please ....


my usuario.xhtml :

               <rich:dataTable id="GrdUsuarios" value="#{listaUsuario}" var="linha" onRowMouseOver="this.style.backgroundColor='#FFEBDA'"
                                                                                                   onRowMouseOut="this.style.backgroundColor='#{org.richfaces.SKIN.tableBackgroundColor}'">
                                                                                                  
                                        <rich:column filterBy="#{linha.id}" filterEvent="onkeyup"  style="width:3%;">
                                             <f:facet name="header">
                                                  <h:outputText value="Codigo" />
                                             </f:facet>
                                             <h:outputText value="#{linha.id}" />
                                        </rich:column>
                                        
                                        <rich:column filterBy="#{linha.nome}" filterEvent="onkeyup"  style="width:65%;">
                                             <f:facet name="header">
                                                  <h:outputText value="Nome" />
                                             </f:facet>
                                             <h:outputText value="#{linha.nome}" />
                                        </rich:column>
                                        
                                        <rich:column filterBy="#{linha.login}" filterEvent="onkeyup"  style="width:10%;">
                                             <f:facet name="header">
                                                  <h:outputText value="Login" />
                                             </f:facet>
                                             <h:outputText value="#{linha.login}" />
                                        </rich:column>
                                        
                                        <rich:column filterBy="#{linha.perfil}" filterEvent="onkeyup"  style="width:10%;">
                                             <f:facet name="header">
                                                  <h:outputText value="Perfil" />
                                             </f:facet>
                                             <h:outputText value="Administrador" rendered="#{linha.perfil.codigo eq '0'}" />
                                             <h:outputText value="Tecnico" rendered="#{linha.perfil.codigo eq '1'}" />
                                             <h:outputText value="Ze roela" rendered="#{linha.perfil.codigo eq '2'}" />
                                        </rich:column>
                                        
                                        <rich:column style="width:15%;">
                                        
                                             <f:facet name="header">
                                                  <h:outputText value="Acoes" />
                                             </f:facet>
                                             
                                             <a4j:commandLink id="linkAlterar" reRender="panelMenu" action="#{usuarioAction.alterarUsuario()}">
                                                   <h:graphicImage value="/img/icon_editar.png" alt="Edidar" />
                                                <a4j:actionparam name="panelCampos" value="itemCampos" assignTo="#{usuarioAction.panelSelected}"/>
                                               <a4j:actionparam name="panelLabel" value="Alteracao" assignTo="#{usuarioAction.panelLabel}"/>
                                                  
                                             </a4j:commandLink>
                                             
                                             <rich:spacer width="10"/>
                                             
                                             <a4j:commandLink id="linkRemove" reRender="panelMenu" action="#{usuarioAction.deletaUsuario()}">
                                                   <h:graphicImage value="/img/icon_lixeira.png" alt="Excluir"/>
                                             </a4j:commandLink>

                                             <rich:spacer width="10"/>
                                             
                                                                  //  When I click that link below, I want to get the line information and display in another page
                                             <a4j:commandLink id="linkPermissoes" action="usuarioProcesso"> //action i go to usuarioProcesso.xhtml
                                                   <h:graphicImage value="/img/btnnewrole.png" />
                                             </a4j:commandLink>


the class below is my UsuarioAction.java:



@Name("usuarioAction")
@Scope(ScopeType.CONVERSATION)
public class UsuarioAction {
     
     @In(required=false)
     @Out(required=false)
     private Usuario usuario;

     @In
     private EntityManager entityManager;
     
     @In
     @Out
     FacesMessages facesMessages;
     
     @DataModel
     List<Usuario> listaUsuario;
     
     @DataModelSelection
     @Out(required=false)
     Usuario usuarioSelecionado;


this is my code below another page where I want to show the information in the selected User grid usuario.xhtml:


          <rich:panel>
               <f:facet name="header">Manutencao de Acessos</f:facet>

               
               <fieldset><legend>Usuario</legend>
                    <h:form id="frmUsuarioProcessos">
                         <h:panelGrid id="GrdUsuarioSelecionado" columns="1">
                              <p><h:outputLabel value="Codigo: #{usuarioSelecionado.id}" /></p>
                                <p><h:outputLabel value="Nome: #{usuarioSelecionado.nome}" /></p>
                         </h:panelGrid>

                    </h:form>               
               </fieldset>
               
               
          </rich:panel>





could someone help me because the information is not ejecting to another page

thanks