Conversion error setting value for 'null converter' [duplicate] - jsf

Question

This question already has answers here:
Conversion Error setting value for 'null Converter' - Why do I need a Converter in JSF?
(2 answers)
Closed 7 years ago.
I'm getting this conversion error message. I'm trying to get a cliente from the selectOneMenu list, then add a bonus to him.
I implemented the converter and the equals/hashcode methods.
Can you see anything wrong?
My XHTML:
<h:body>
<h:form>
<p:panel id="panel" header="Cadastro de bônus">
<p:panelGrid columns="2">
<p:outputLabel value="Cliente: " />
<p:selectOneMenu value="#{clienteBean.cliente}">
<f:selectItem itemLabel="--Selecione um cliente--" />
<f:selectItems value="#{clienteBean.selectClientes}" />
</p:selectOneMenu>
<p:outputLabel value="Informe o valor da venda:" for="valor_venda" />
<p:inputText id="valor_venda"
value="#{bonusBean.bonus.valor_venda}" />
<h:commandButton value="Próximo" action="#{bonusBean.gravar}" />
</p:panelGrid>
</p:panel>
</h:form>
</h:body>
</ui:define>
My DAO:
public class DAOCliente {
public EntityManager getEntityManager() {
EntityManagerFactory factory = Persistence.createEntityManagerFactory("cliente");
EntityManager entityManager = factory.createEntityManager();
return entityManager;
}
public void adiciona (Cliente cliente){
EntityManager entityManager = getEntityManager();
entityManager.getTransaction().begin();
entityManager.persist(cliente);
entityManager.getTransaction().commit();
entityManager.close();
}
public void excluir(Cliente cliente)throws Exception{
EntityManager entityManager = getEntityManager();
try {
entityManager.getTransaction().begin();
cliente = entityManager.merge(cliente);
entityManager.remove(cliente);
entityManager.getTransaction().commit();
} finally {
entityManager.close();
}
}
public Cliente consultar (Long id){
Cliente cliente = new Cliente();
EntityManager entityManager = getEntityManager();
try {
entityManager.getTransaction().begin();
cliente = entityManager.find(Cliente.class, id);
entityManager.getTransaction().commit();
}
catch (Exception e) {
entityManager.getTransaction().rollback();
}
finally {
entityManager.close();
}
return cliente;
}
#SuppressWarnings("unchecked")
public List<Cliente> listarTodosClientes() throws Exception{
EntityManager entityManager = getEntityManager();
List<Cliente> lista = null;
try {
Query query = entityManager.createQuery("SELECT c FROM Cliente c");
lista = query.getResultList();
for (Cliente cliente : lista) {
System.out.println("Nome: " + cliente.getNome());
System.out.println("Fone Residencia: " + cliente.getFone_residencia());
System.out.println("Fone Celular: " + cliente.getFone_celular());
System.out.println("Perfil FB: " + cliente.getPerfil_facebook());
System.out.println("------------------------------------");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
entityManager.close();
}
return lista;
}
}
My converter:
#FacesConverter(forClass = ClienteBean.class)
public class ConverterCliente implements Converter {
#Override
public Object getAsObject(FacesContext ctx, UIComponent component, String value) {
if(value!=null && value.trim().length()>0){
Long id = Long.valueOf(value);
DAOCliente dao = new DAOCliente();
return dao.consultar(id);
}
return null;
}
#Override
public String getAsString(FacesContext facesContext, UIComponent component, Object value) {
if(value!=null){
Cliente cliente = (Cliente) value;
return cliente.getId().toString();
}
return null;
}
}
My Managed Bean:
#ManagedBean
public class ClienteBean {
private Cliente cliente;
List<Cliente> clientes;
List<SelectItem> selectClientes;
DAOCliente dao = new DAOCliente();
public List<SelectItem> getSelectClientes() throws Exception {
if(selectClientes==null){
selectClientes = new ArrayList<SelectItem>();
clientes = dao.listarTodosClientes();
if(clientes!=null && !clientes.isEmpty()){
SelectItem item;
for(Cliente lista : clientes){
item = new SelectItem(lista, lista.getNome());
selectClientes.add(item);
}
}
}
return selectClientes;
}
public List<Cliente> getClientes() throws Exception{
if(clientes == null){
clientes = dao.listarTodosClientes();
}
return clientes;
}
public Cliente getCliente() {
return cliente;
}
public void gravar() {
dao.adiciona(cliente);
this.cliente = new Cliente();
}
public void excluir(Cliente cliente) throws Exception{
dao.excluir(cliente);
}
public void setClientes(List<Cliente> clientes) {
this.clientes = clientes;
}
}
My Cliente class:
public class Cliente {
#Id #GeneratedValue
private Long id;
private String nome;
private String fone_residencia;
private String fone_celular;
private String perfil_facebook;
#OneToMany(mappedBy = "cliente", fetch = FetchType.EAGER, targetEntity = Bonus.class, cascade = CascadeType.ALL)
private List<Bonus> bonus;
public List<Bonus> getBonus() {
return bonus;
}
public void setBonus(List<Bonus> bonus) {
this.bonus = bonus;
}
public String getPerfil_facebook() {
return perfil_facebook;
}
public void setPerfil_facebook(String perfil_facebook) {
this.perfil_facebook = perfil_facebook;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getFone_residencia() {
return fone_residencia;
}
public void setFone_residencia(String fone_residencia) {
this.fone_residencia = fone_residencia;
}
public String getFone_celular() {
return fone_celular;
}
public void setFone_celular(String fone_celular) {
this.fone_celular = fone_celular;
}
#Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((bonus == null) ? 0 : bonus.hashCode());
result = prime * result
+ ((fone_celular == null) ? 0 : fone_celular.hashCode());
result = prime * result
+ ((fone_residencia == null) ? 0 : fone_residencia.hashCode());
result = prime * result + ((id == null) ? 0 : id.hashCode());
result = prime * result + ((nome == null) ? 0 : nome.hashCode());
result = prime * result
+ ((perfil_facebook == null) ? 0 : perfil_facebook.hashCode());
return result;
}
#Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Cliente other = (Cliente) obj;
if (bonus == null) {
if (other.bonus != null)
return false;
} else if (!bonus.equals(other.bonus))
return false;
if (fone_celular == null) {
if (other.fone_celular != null)
return false;
} else if (!fone_celular.equals(other.fone_celular))
return false;
if (fone_residencia == null) {
if (other.fone_residencia != null)
return false;
} else if (!fone_residencia.equals(other.fone_residencia))
return false;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
if (nome == null) {
if (other.nome != null)
return false;
} else if (!nome.equals(other.nome))
return false;
if (perfil_facebook == null) {
if (other.perfil_facebook != null)
return false;
} else if (!perfil_facebook.equals(other.perfil_facebook))
return false;
return true;
}
#Override
public String toString() {
return "Cliente [id=" + id + ", nome=" + nome + ", fone_residencia="
+ fone_residencia + ", fone_celular=" + fone_celular
+ ", perfil_facebook=" + perfil_facebook + ", bonus=" + bonus
+ "]";
}
}

Answer 1

You should mention the used converter class in the concerned tag to enable conversion :
<p:selectOneMenu value="#{clienteBean.cliente}" converter="converterCliente">
...
</p:selectOneMenu>