Hi,
I've stumbled into the following problem that I'm not 100% sure how to
handle.
I have the following situation:
abstract class Foo {
}
class Bar extends Foo {
}
class Boo extends Foo {
}
class Baz {
private Foo[] fooElements;
}
where fooElements can contain nulls. However, trying to marshal this only
brings nullpointerexceptions.
I read:
http://sourceforge.net/mailarchive/[EMAIL PROTECTED]
however, the nillable="true" method does not seem to work for me here (I've
added it to the Bar and Boo mappings. Foo cannot take it, as it is
abstract), nor can I compact the array as I need the objects to be 100% the
same after a marshal / unmarshal.
I guess it isn't that strange that it isn't handled. Foo is abstract, so how
exactly would it represent a null?
My only real idea for how to solve this is to write a custom marshaller /
unmarshaller to handle this (and create a custom <null /> element for it),
but I'd rather not if it can be avoided.
I'd also like to avoid adding another object between the abstract Foo and
the concrete classes, if possible...
I may just be asking too much of the framework here and the custom
marshaller / unmarshaller is the best option, but experience tells me there
are loads of people smarter than me, and perhaps someone out there has
already solved this :-)
Regards,
Søren Andersen
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