tree 97c09230377d9da4b5238e20775a1afa28e0bdc7
parent 4492ab39e8db078456b7c06d0d8e4978e7dc6cd5
author Edwin Kempin <ekempin@google.com> 1467100853 +0200
committer Edwin Kempin <ekempin@google.com> 1467183841 +0200

Add mixin interface for matchable predicates

Only change predicates need to have a match method, because for
historic reasons changes may be loaded from multiple sources.
Predicates for other indices do not need to implement a match method
because the data is always loaded from the index. An exception are
the predicates that check visibility for which a match method is
always required.

Change-Id: I3492bc83b6faf6708ab0102a49463aa0d4a3d10b
Signed-off-by: Edwin Kempin <ekempin@google.com>