many to many problems

[cecily]

I have a problem when I try to use "many to many" relationship
the mapping works
I have 2 classes: client-Supplier, that contains "communication"
and other class: communication

when I do:

HibernateUtil.getSessionFactory();
            
          Enterprise con = new Enterprise ();
            con.setName("restg");
            con.setId(5);
            
            
            Communication communication = new Communication ();
            communication .setType('E');
            communication .setValue("asaas@hsas.com");
            
            
            Client_Supplier client = new Client_Supplier();
            client.setCodP(2121);
            Set  children = new  HashSet();
            children.add(communication);

            client.setCommunication(children);
            client.setCondition(con);
            client.setAddress("dsdasd");
          
try {
                Session session = HibernateUtil.getSessionFactory().getCurrentSession();
                Transaction transaction = session.beginTransaction();
                Client_SupplierTest cp = new Client_SupplierTest (session);
                ConditionDAO conD = new ConditionDAO(session);
                conD.saveCondition(con);
                session.save(cp);
                transaction.commit();
                
            } catch (Exception ex) {
                ex.printStackTrace();
            }

the problem is that save in client_suppliers table and nothing in communication table.
what's the problem?

[paty]

in communication map you have to add the relationship many to many towards client_supplier, too