Lambdas and serialization

Llewellyn Falco isidore at setgame.com
Wed Nov 10 05:16:27 PST 2010


I just realized this is a mistake!

Comparable will not work properly without the Equals method
being overridden.

Namely, if you have two object a, b you will get
a.compareTo(b) == 0
but
a.equals(b) == false

depending on your implementation this will fail!

Llewellyn Falco
http:\\bit.ly\lambdas

On Wed, Oct 27, 2010 at 4:00 AM, Maurizio Cimadamore <
maurizio.cimadamore at oracle.com> wrote:

>
>  btw: what happens with comparator? it's not a SAM (2 methods - compare,
>> equals), but seems to be a very wanted case for lambdas?
>>
>>
>>
> The definition of SAM does not take into account methods inherithed from
> java.lang.Object. Which means that Comparator<T> really has just one
> relevant target method and therefore can be used as the target of a SAM
> conversion.
>
> Maurizio
>


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