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Re: [eclipselink-users] Customizing the column names of embeddables 
Don't use,
  mapping.getReferenceDescriptor() (this is internal and not available until
after initialization)

use,
  session.getDescriptor(LengthType.class);

then in your mapping you can override each column value using the
AggregateObjectMapping addFieldNameTranslation() method.



Frank Schwarz wrote:
> 
> Thank you for your response. I tried the session-customizer and found that
> with the post-login-event the getReferenceDescriptor()-method begins
> returning a value other than null for the @embedded-field-mapping. Not too
> late for EclipseLink to create the correct tables itself, but too late for
> using the SchemaManager to create the DDL-scripts (see also Bug 227145 and
> 243321).
> 
> The actual question is somewhat more abstract:
> 1.) Can one expect that the mapping is fully initialized when it is passed
> into a descriptor-customizer?
> From looking at the sources, the mapping of an embeddable is somewhat of a
> corner case. Can the initialization process be reorderd? Is this a valid
> RFE? (IHMO at least Bug 243321 is to depend on it.)
> 
> 2.) If reordering is not feasible, would it be possible to get access to
> the metadata-system from within the descriptor-customizer? Would this be a
> valid RFE? (Perhaps a DescriptorCustomizer2-interface which also passes
> into the customize()-method the current server-session as the second
> argument?)
> 
> I really appreciate your help,
> Frank
> 
> 
> 
> James Sutherland wrote:
>> 
>> You need to get the descriptor for LengthType, so need the Session to do
>> this.  Perhaps use a SessionCustomizer instead of a DescriptorCustomizer.
>> 
> 
> 


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