Add type information to the interface

[GoogleCodeExporter]

Hi!

This is not an issue and sorry if I suggest something stupid, but I was 
wondering can you improve the usability of the diff tools, by introducing some 
type information about the Delta.

So instead of looking after the types, with the instanceof operator, I can get 
the type of the change by retrieving an enum.

E.g.:
Delta delta = patch.getDeltas().get(0);
if(Delta.TYPE.Delete.equals(delta.getType());

Than you can make the change deltas package-private for cleanable API.

Just an idea.

David

Original issue reported on code.google.com by edvi...@gmail.com on 6 Aug 2010 at 1:43