selectOneMenu nao recupera o valor (RESOLVIDO)

<a4j ...

<a4j:support ...

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package br.com.onsave.sasep.model.util;

import br.com.onsave.sasep.dao.aluno.AlunoDao;
import br.com.onsave.sasep.model.aluno.Aluno;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;

/**
 *
 * @author flavio
 */
 
@FacesConverter(forClass=Aluno.class)
public class AlunoConverter implements Converter{

    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String string) {
        if(string == null || string.isEmpty()){
            return null;
        }
        return new AlunoDao().get(Integer.valueOf(string), Aluno.class);
    }

    @Override
    public String getAsString(FacesContext context, UIComponent component, Object object) {
        Aluno aluno = (Aluno) object;
        if(aluno == null || aluno.getId() == null){
            return null;
        }
        return String.valueOf(aluno.getId());
    }
   
}

<h:outputText value="Aluno:"  />
<p:selectOneMenu value="#{alunoController.aluno}" converter="AlunoConverter" id="selectAluno">
    <f:selectItem itemLabel="Selecione..." itemValue="" />
    <f:selectItems value="#{alunoController.alunos}" />
</p:selectOneMenu>

<ajax ...

@ViewScoped

<h:form prependId = "false">
            <h:panelGrid columns="2">
                <h:outputLabel for="empresaa" value="Estado " />
                <h:selectOneMenu id="empresaa"
                                 required="true"
                                 value="#{regiaoMB.idSelect}">
                    
                        <f:selectItems value="#{empresaBean.listaEmpresa}"
                                       var="v"  
                                       itemValue="#{v.idEmpresa}" 
                                       itemLabel="#{v.nome}"/> 
                        
                        <f:ajax event="change" 
                                render="cargoo" 
                                listener="#{regiaoMB.actionCarregaCidades(event)}"/>                     
                        
                </h:selectOneMenu>

                <h:outputLabel for="cargoo" value="Cargo " />
                <h:selectOneMenu id="cargoo" 
                                 value="#{regiaoMB.cargo.idCargo}"
                                 rendered="true">
                        
                    <f:selectItem itemValue="" 
                                  itemLabel="Selecione..." />
                    <f:selectItems value="#{regiaoMB.cargos}" />
                    
                </h:selectOneMenu>
            </h:panelGrid>
	</h:form>

import FactoryMethod.FactoryDAO;
import Interface.ICargoDAO;
import Interface.IEmpresaDAO;
import Model.Cargo;
import Model.Empresa;
import java.io.Serializable;
import java.sql.SQLException;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.event.AjaxBehaviorEvent;
import javax.faces.model.SelectItem;

@ManagedBean
@ViewScoped
public class RegiaoMB implements Serializable {

	private static final long serialVersionUID = -4281390476508498320L;
        private ICargoDAO dao               = (ICargoDAO) FactoryDAO.creatObject(Cargo.class);
        private IEmpresaDAO daoe            = (IEmpresaDAO) FactoryDAO.creatObject(Empresa.class);
	
        private List<SelectItem> cargos = new ArrayList<SelectItem>();
	private Empresa empresa = new Empresa();
	private Cargo cargo = new Cargo();
	
        private int idSelect = 0;
        
	public List<SelectItem> getEmpresas() throws ParseException, SQLException{
		
		List<Empresa> lista = daoe.Listar();
		
		List<SelectItem> itens = new ArrayList<SelectItem>(lista.size());
		
		for(Empresa s : lista){  
			itens.add(new SelectItem(s.getIdEmpresa(), s.getNome()));
		}
		return itens;
	}
	
	public void actionCarregaCidades(AjaxBehaviorEvent  event) throws ParseException, SQLException{	
            this.cargos = this.getCidadesByEstado();
	}
	
	public List<SelectItem> getCidadesByEstado() throws ParseException, SQLException{  
            
		List<Cargo> listCargo = dao.ListCargoCombo(this.idSelect);
		List<SelectItem> items = new ArrayList<SelectItem>(cargos.size());  
		
		for(Cargo c : listCargo){  
			items.add(new SelectItem(c.getIdCargo(), c.getNomeCargo()));  
		}
		
		return items;
	}

    public int getIdSelect() {
        return idSelect;
    }

    public void setIdSelect(int idSelect) {
        this.idSelect = idSelect;
    }

        
    public List<SelectItem> getCargos() {
            return cargos;
    }

    public void setCidades(List<SelectItem> cargos) {
            this.cargos = cargos;
    }

    public Empresa getEmpresa() {
            return empresa;
    }

    public void setEmpresa(Empresa empresa) {
            this.empresa = empresa;
    }

    public Cargo getCargo() {
            return cargo;
    }

    public void setCargo(Cargo cargo) {
            this.cargo = cargo;
    }
}