Hello, I couldn't find my specific question in the archives, so I am posting it here. Please CC any reply as I am not subscribed. I am using ojb-rc6 with a postgreSQL database.
I have an object hierarchy implemented which uses the "one-table-per-class" approach along with join tables for collections. Everything works great, but after enabling dynamic proxies on the collections I am unable to identify the different class instances in the collection once they are loaded from the DB. Example: Say I have three classes, Foo, Bar, and Baz. The inheritance is such that Foo <- Bar <- Baz. Now, I create an object with contains a collection of "Foo" objects which are populated by a mix of Foo, Bar and Baz objects. This object is then serialize to the DB. Here is an outline of how the mapping is structured: <class-descriptor class="Foo" table="foo"> <extent-class class-ref="Bar" /> <extent-class class-ref="Baz" /> </class-descriptor> <class-descriptor class="Bar" table="bar" /> <extent-class class-ref="Baz" /> </class-descriptor> <class-descriptor class="Baz" table="baz" /> <class-descriptor class="MyObject" table="myobj"> <collection-descriptor name = "foos" element-class-ref = "Foo" proxy = "true" auto-retrieve = "true" indirection-table = "myobj_foos" > <fk-pointing-to-this-class column = "myobj_id"/> <fk-pointing-to-element-class column = "foo_id"/> </collection-descriptor> </class-descriptor> Now, if I load the saved object, the dynamic proxy object are all created as proxies to an object of type "Foo". I can no longer reflect of the loaded data or use "instanceof" to identify objects. So my question is: How can I get at the underlying object type using dynamic proxies? Is there a standard way to deal with this case? To be clear, everything works fine without using dynamic proxies. Thank you in advnace, -Lucas Scharenbroich --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]