You can implement arbitrary comparison algorithms using reflection (protobuf
reflection, not Java reflection -- see the Message interface).

On Sat, Oct 17, 2009 at 10:34 AM, Michael <[email protected]> wrote:

>
> Thanks for the suggestion but unfortunately equals with not tell me GT
> or LT. Furthmore the encoding scheme is not byte sortable.  Take for
> example varints which are LSB first, sint32 it uses a zig zag encoding
> with -10 > 5, and strings which start with there length so "z" < "aa".
> Not so good. Also double which are IEEE 754 are not byte comparable :-
> (
>
> Basically you need to walk the fields including nested types, and then
> compare the primitives types, or bytes for strings.
>
> I wish it was so simple :-(
>
> On Oct 17, 6:03 pm, Jesper Eskilson <[email protected]> wrote:
> > On Sat, Oct 17, 2009 at 6:25 PM, Michael <[email protected]> wrote:
> >
> > > int compare(byte[] b1, int s1,
> > >                            byte[] b2, int s2,
> > >                            Descriptors.Descriptor type)
> >
> >
> > Can't you use Arrays#equals() for that?
>
> >
>

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