if ( associatedObject == null ) { throw new IdentifierGenerationException( "attempted to assign id from null one-to-one property [" + getRole() + "]" );
if ( associatedObject == null ) { throw new IdentifierGenerationException( "attempted to assign id from null one-to-one property [" + getRole() + "]" );
if ( associatedObject == null ) { throw new IdentifierGenerationException( "attempted to assign id from null one-to-one property [" + getRole() + "]" );
if ( associatedObject == null ) { throw new IdentifierGenerationException( "attempted to assign id from null one-to-one property [" + getRole() + "]" );