Hello dear Jboss community:
I got a problem concerning mysql and cmr. I am wondering why I get a ClassCastException in ejbPostCreate whil working on a m:n relationship. I am creating an ArrayList
(widely known to implement java.util.Collection) of Long(s).
This ArrayList is an parameter in both ejbCreate and ejbPostCreate and of course on site of the m:n relation.
In ejbPostCreate I call a setter to set the collection and
use the ArrayList as a paramter. Here is the ejbCode:
/**
* @return a collection of related Customers
* @ejb.interface-method view-type="local"
* @ejb.relation name="customers-accounts"
* role-name="customer-has-accounts"
* target-multiple="yes"
* target-ejb="account"
* @jboss.relation fk-constraint="true"
* related-pk-field="id"
* fk-column="fk_account"
*
**/
public abstract Collection getAccount();
public abstract void setAccount(Collection accounts);
/**
* @ejb:create-method
*/
public java.lang.Long ejbCreate(CustomerValueObject customerValueObject) throws CreateException {
System.out.println("\n\n\n\n\n\nCREATE" );
this.setCustomerNo(customerValueObject.getCustomerNo());
return null;
}
public void ejbPostCreate(CustomerValueObject customerValueObject) throws CreateException {
System.out.println("\n\n\n\n\n\nEJBPOSTCREATE" );
System.out.println("Test:" + customerValueObject.getAccounts());
this.setAccount(customerValueObject.getAccounts());
While being in ejbPostCreate (.setAcccount...) I get a ClassCast Exception. Anyone out there that knows why?
The runs in the same vm - localHome....
thanx you all,
sven alias wunderkind
