I think the problem is that you define your Bean property as a Collection, not a Set. But hibernate is expecting an object which implements the Set interface. When FDS deserializes the ActionScript Array collection, it needs to know to convert it to a Set on the server side so it is compatible with what hibernate expects.
Make the bean property be a java.util.Set and we'll stuff a HashSet in there and hibernate should be happy. Jeff ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Alberto Albericio Sent: Wednesday, May 23, 2007 1:52 AM To: [email protected] Subject: [flexcoders] Cast Exception from FDS to Hibernate Hi all, I have an hibernate mapping defined with some properties and a relationship: <set name="items" table="..." lazy="false"> <key column="..."/> <one-to-many class="..."/> </set> This relationship is defined in the java bean as: private Collection items; On the Flex side, I'm receiving this relationship as an ArrayCollection. The serialization from java.util.Collection to Flex ArrayCollection works fine but, when I try to save the changes made on the client side ( what, on the server side, gets translated into getHibernateTemplate().update ( .. ) ), it just fails throwing this error: java.lang.ClassCastException : flex.messaging.io.ArrayCollection cannot be cast to java.util.Set Im stuck and I dont know what to do. Any ideas? Thank you! Alberto
