ManyToMany joint table mapping

[goschan]

Hello

I have two tables, Supplier and Address, one supplier can have many addresses and one address can be shared by many suppliers. So in my schema I have a join table lk supplier address.

Seam gen generated the two entity Supplier and Address :

Supplier entity

[...]
private Set<Address> addresses = new HashSet<Address>(0);
[...]

@ManyToMany(fetch = FetchType.LAZY)
@JoinTable(name = "lk_supplier_address", schema = "orderformschema", joinColumns = { @JoinColumn(name = "lk_fa_supplier_id", nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = "lk_fa_address_id", nullable = false, 
updatable = false) })
     public Set<Address> getAddresses() {
          return this.addresses;
     }

     public void setAddresses(Set<Address> addresses) {
          this.addresses = addresses;
     }

Address entity

[...]
private Set<Supplier> suppliers = new HashSet<Supplier>(0);
[...]

@ManyToMany(fetch = FetchType.LAZY)
@JoinTable(name = "lk_supplier_address", schema = "orderformschema", joinColumns = { @JoinColumn(name = "lk_fa_address_id", nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = "lk_fa_supplier_id", nullable = false, updatable = false) })
     public Set<Supplier> getSuppliers() {
          return this.suppliers;
     }

     public void setSuppliers(Set<Supplier> suppliers) {
          this.suppliers = suppliers;
     }

That seams right to me, but in the view, how can I access these two properties lk fa address id and lk fa supplier id.

I try to modify the view generated by seam :

<rich:dataTable value="#{supplierHome.instance.addresses}"
     var="_lkSupplierAddress"
     rendered="#{not empty supplierHome.instance.addresses}"
     rowClasses="rvgRowOne,rvgRowTwo" id="lkSupplierAddressesTable">
     <rich:column sortBy="#{_lkSupplierAddress.idAdd}">
          <f:facet name="header">Lk fa address id</f:facet>
          <h:outputText value="#{_lkSupplierAddress}" />
     </rich:column>
     <rich:column sortBy="#{_lkSupplierAddress.suppliers}">
             <f:facet name="header">Lk fa supplier id</f:facet>
          <h:outputText value="#{_lkSupplierAddress}" />
     </rich:column>
</rich:dataTable>

But in this case I access to the HashSet addresses, right ? And Jboss write

17:43:53,698 ERROR [viewhandler] Error Rendering View[/Supplier.xhtml]
javax.faces.FacesException: javax.el.PropertyNotFoundException: /Supplier.xhtml @258,60 value="#{_lkSupplierAddress.idAdd}": Property 'idAdd' not found on type org.hibernate.collection.PersistentSet

I'm a little bit lost :(

If I remove the idApp from the var lkSupplierAddress, my DataTable show

com.orderform.entity.Address@1bed987

as it was a Address Object ...

Can you explain me why ? Thanks

Benjamin