On Sep 4, 2008, at 3:01 PM, Mike Schrag wrote:
Yeah, see, that's what I _thought_ but then when I tried to override:
public NSArray<LotCode> lotCodes() ... in my Part class
with
public NSArray<ManufacturedBatch> lotCodes() in my Intermediate
class (subclass of Part)
Yes, this is because while ManufacturedBatch is a subclass of
LotCode, unlike the case of java arrays, NSArray<ManufacturedBatch>
is not a "subclass" of NSArray<LotCode>, so you don't ACTUALLY have
covariant return types here. If you were returning a to-one
relationship, this would work as expected.
Ah, the wonderful magic of Java!
Chuck
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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