depends.
 
Are each of the subclasses mapped to the same table, or to a different table?

        -----Original Message----- 
        From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] 
        Sent: Fri 1/17/2003 6:58 AM 
        To: [EMAIL PROTECTED] 
        Cc: 
        Subject: Load an object from an extent
        
        

        If I declare an extent like this:
        
        <class-descriptor class="foo.model.specification.file.FieldItem">
              <extent-class 
class-ref="foo.model.specification.output.CustomFieldItem"/>
              <extent-class class-ref="foo.model.specification.output.DomainFieldItem" 
/>
              <extent-class class-ref="foo.model.specification.input.InputField" />
        </class-descriptor>
        
        And their are seperate class-descriptors for each sub-class.  When I try to 
load an object that is a "FieldItem", specifying it's OID, how does OJB
        work?
        Does it just try each table until it finds a hit?
        
        David Corbin
        
        
        
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