[RESOLVIDO]picklist"primefaces" + jpa

<h:form id="form">  
    <p:panel header="AutoComplete" toggleable="true" id="panel">  
        <h:panelGrid columns="2" cellpadding="5">  
          
            <h:outputLabel value="Simple :" for="acSimple" />  
            <p:autoComplete id="acSimple" value="#{autoCompleteBean.txt1}"   
                    completeMethod="#{autoCompleteBean.complete}"/>
        </h:panelGrid>  
    </p:panel>  
</h:form>

package org.primefaces.examples.view;  
  
import java.util.ArrayList;  
import java.util.List;  
  
public class AutoCompleteBean {  
  
    private String txt1;

    public List<String> complete(String query) {  
        List<String> results = new ArrayList<String>();  
          
        for (int i = 0; i < 10; i++) {  
            results.add(query + i);  
        }  
          
        return results;  
    }  
  
    public String getTxt1() {  
        return txt1;  
    }  
  
    public void setTxt1(String txt1) {  
        this.txt1 = txt1;  
    }
}

<p:pickList iconOnly="true" id="usuario"
					  	 
					  	 addAllLabel="Adicionar todos Usu&#225;rios" 
						 addLabel="Adionar Selecionado" removeLabel="Remover Usu&#225;rio" 
						 removeAllLabel="Remover todos Usu&#225;rios"  
						 
						 value="#{sistemaBean.usuarioModel}" var="sistema" 
						 itemLabel="#{sistema.nome}" itemValue="#{sistema.idUsuario}">  
					  
							 <f:facet name="sourceCaption">Usu&#225;rio(s)</f:facet>  
		        			 <f:facet name="targetCaption">Vinculado(s) ao sistema</f:facet>  
        				
					  </p:pickList>

itemLabel="#{sistema.nome}" itemValue="#{sistema.nome}">

private Sistema sistema  = new Sistema();
	private List<Sistema> sistemas;
	
	private DualListModel<PerfilUsuario> usuarioModel;
	
	private PerfilUsuario perfilUsuario = new PerfilUsuario();
	
	private List<PerfilUsuario> usuariosSelecionados = new ArrayList<PerfilUsuario>();
	private List<PerfilUsuario> usuarios = new ArrayList<PerfilUsuario>();
	
	private List<PerfilUsuario> perfilUsuarios;
	
	public String gravar(){
		
		DAO<Sistema> dao = new DAO<Sistema>(Sistema.class);
		usuarios = usuarioModel.getSource();
		usuariosSelecionados = usuarioModel.getTarget();
			
		
		if(sistema.getIdSistema() == null){
			sistema.setUsuarios(usuariosSelecionados);
			dao.adiciona(sistema);
		}else{
			dao.atualiza(sistema);
		}
		
		//Lista os dados em tempo real com o banco
		this.sistemas = dao.listaTodos();
		
		//Quando for adicionar chama-se denovo o metodo para limpar os campos
		this.sistema = new Sistema();
		
		return "cadastroSistema?faces-redirect=true";
		
	}

java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String

itemLabel="#{sistema.nome}" itemValue="#{sistema.idUsuario}">

Caused by: javax.persistence.RollbackException: Error while committing the transaction

at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:93)

at br.com.sisapropriacao.dao.DAO.adiciona(DAO.java:26)

at br.com.sisapropriacao.mb.SistemaBean.gravar(SistemaBean.java:46)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.apache.el.parser.AstValue.invoke(AstValue.java:262)

at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)

at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:98)

at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)

… 24 more

Caused by: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of br.com.sisapropriacao.modelo.PerfilUsuario.idUsuario

at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1167)

at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1100)

at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:81)

… 34 more

Caused by: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of br.com.sisapropriacao.modelo.PerfilUsuario.idUsuario

at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:62)

at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:230)

at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3845)

at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3553)

at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:204)

at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:243)

at org.hibernate.type.EntityType.getIdentifier(EntityType.java:449)

at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:132)

at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:816)

at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1204)

at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:58)

at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:268)

at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:260)

at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:183)

at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)

at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)

at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1206)

at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:375)

at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)

at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:76)

… 34 more

sistema.setUsuarios(getPerfilUsuarios());

@Entity
public class Sistema implements Serializable {

	private static final long serialVersionUID = 1L;
	
	@Id
	@GeneratedValue
	private Long idSistema;
	
	private String nomeSistema;
	private String descricao;
	
	@ManyToMany(fetch=FetchType.EAGER)
	private List<PerfilUsuario> usuarios = new ArrayList<PerfilUsuario>();

public class PerfilUsuario implements Serializable {

	private static final long serialVersionUID = 1L;

	@Id 
	@GeneratedValue
	private Long idUsuario;
	
	private String login;

	private String senha;
		
	private String nome;
	
	private String endereco;
	
	private String telefone;
	
	private String rg;
	
	private String cpf;
	
	private String complemento;
	
	private String bairro;
	
	private String horaTrabalhada;
	
	@Enumerated(EnumType.STRING)
	private TipoUsuario tipoUsuario;
	
	@Enumerated(EnumType.STRING)
	private TipoFuncionario tipoFuncionario;
	
	@Valid
	@OneToOne
	private Gerencia gerenciaVinculado;
	
	@Valid
	@OneToOne
	private Bairro bairroVinculado;

@Entity
@SessionScoped
public class PerfilUsuario implements Serializable {

	private static final long serialVersionUID = 1L;

	@Id 
	@GeneratedValue
	private Long idUsuario;

	//Atributos

	//bi-directional many-to-many associação 
       @ManyToMany(mappedBy="usuarios", fetch= FetchType.EAGER)
        private List<Sistema> sistemas;
	

	//getters e setters
	
}

@Entity
public class Sistema implements Serializable {

	private static final long serialVersionUID = 1L;
	
	@Id
	@GeneratedValue
	private Long idSistema;
	
	//Atributos
	
	@ManyToMany
	@JoinTable(name="sistema_perfilusuario", 
			joinColumns = {@JoinColumn(name="idSistema")}, 
			inverseJoinColumns = {@JoinColumn(name="idUsuario")})
	private List<PerfilUsuario> usuarios;
	
}

@ManagedBean
@ViewScoped
public class SistemaBean implements Serializable{


	private static final long serialVersionUID = 1L;

	private Sistema sistema  = new Sistema();
	private List<Sistema> sistemas;
	
	private DualListModel<PerfilUsuario> usuarioModel;
	
	private PerfilUsuario perfilUsuario = new PerfilUsuario();
	
	private List<PerfilUsuario> usuariosSelecionados = new ArrayList<PerfilUsuario>();
	private List<PerfilUsuario> usuarios = new ArrayList<PerfilUsuario>();
	
	private List<PerfilUsuario> perfilUsuarios;
	
	public String gravar(){
		
		DAO<Sistema> dao = new DAO<Sistema>(Sistema.class);
		usuarios = usuarioModel.getSource();
		usuariosSelecionados = usuarioModel.getTarget();
			
		
		if(sistema.getIdSistema() == null){
			sistema.setUsuarios(usuariosSelecionados);
			dao.adiciona(sistema);
		}else{
			dao.atualiza(sistema);
		}
		
		//Lista os dados em tempo real com o banco
		this.sistemas = dao.listaTodos();
		
		//Quando for adicionar chama-se denovo o metodo para limpar os campos
		this.sistema = new Sistema();
		
		return "cadastroSistema?faces-redirect=true";
		
	}
	
	public DualListModel<PerfilUsuario> getUsuarioModel(){

		 if(this.usuarioModel==null){ 
			 this.usuarioModel = new DualListModel<PerfilUsuario>(getPerfilUsuarios(), new ArrayList<PerfilUsuario>());
		 }
		 return this.usuarioModel;
	}

}

@FacesConverter(value = "PerfilUsuarioConverter")
public class PerfilUsuarioConverter implements Converter {

		@Override
		public Object getAsObject(FacesContext arg0, UIComponent arg1, String arg2) {
		    Object ret = null;
		    if (arg1 instanceof PickList) {
		        Object dualList = ((PickList) arg1).getValue();
		        DualListModel dl = (DualListModel) dualList;
		        for (Object o : dl.getSource()) {
		            String id = "" + ((PerfilUsuario) o).getIdUsuario();
		            if (arg2.equals(id)) {
		                ret = o;
		                break;
		            }
		        }
		        if (ret == null)
		            for (Object o : dl.getTarget()) {
		                String id = "" + ((PerfilUsuario) o).getIdUsuario();
		                if (arg2.equals(id)) {
		                    ret = o;
		                    break;
		                }
		            }
		    }
		    return ret;
		}

		@Override
		public String getAsString(FacesContext arg0, UIComponent arg1, Object arg2) {
		    String str = "";
		    if (arg2 instanceof PerfilUsuario) {
		        str = "" + ((PerfilUsuario) arg2).getIdUsuario();
		    }
		    return str;
		}
}

<h:outputLabel value="Vincular Usu&#225;rio(s):" for="usuario" />
					  <p:pickList iconOnly="true" id="usuario" converter="PerfilUsuarioConverter"
					  	 
					  	 addAllLabel="Adicionar todos Usu&#225;rios" 
						 addLabel="Adionar Selecionado" removeLabel="Remover Usu&#225;rio" 
						 removeAllLabel="Remover todos Usu&#225;rios"  
						 
						 value="#{sistemaBean.usuarioModel}" var="sistema" 
						 itemLabel="#{sistema.nome}" itemValue="#{sistema}">  
					  
							 <f:facet name="sourceCaption">Usu&#225;rio(s)</f:facet>  
		        			 <f:facet name="targetCaption">Vinculado(s) ao sistema</f:facet>  
        				
					  </p:pickList>