hibernate query multiple object select

Question

I have a entity model like this:

public class Facture implements Serializable 
{
@Id @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="SEQ_FACTURE")
private long idFacture;
...

private Panier panier;
    ...
 }

 public class Panier
 {
@Id @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="SEQ_PANIER")
private long idPanier;  

@ManyToOne
private Client client;
@OneToMany
private List<LignePanier> articles = new ArrayList<LignePanier>();
...
 }

 public class Client
 {
@Id @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="SEQ_CLIENT")
private long idClient;
...
  }

So I would like to query all the facture from a client X. I try something like this:

 public List<Facture> listeFacture(Long clientID) {
    List<ParameterMap> parameters = new ArrayList<ParameterMap>();
    parameters.add(new ParameterMap(StandardBasicTypes.LONG, clientID));
    return dao.query("select facture from Facture facture where facture.panier.client.idClient = ?", parameters);
}

I get this exception:

  org.hibernate.QueryException: could not resolve property: client of: be.infoserv.web.model.Facture [select facture from be.infoserv.web.model.Facture facture where facture.panier.client.idClient = ?]

I think it's not possible to query throuth object like this but i don't know how to write this query...

Sorry for my english, i am a french user.

Answer 1

You may have to use inner joins to do this:

select facture
from Facture facture
     inner join facture.panier as panier
     inner join panier.client as client
where client.clientId = ?

Or use criteria which can be a bit safer since you can't muck up the hql:

Criteria factureCrit = session.createCriteria(Facture.class);
Criteria panierCrit = factureCrit.createCriteria("panier");
Criteria clientCrit = panierCrit.createCriteria("client");
clientCrit.add(Restrictions.idEq(clientId));

return factureCrit.list();