square/cascading2-protobufs — pull request #16 by bryanduxbury (2014-02-19 22:57:29+00:00)
Title: added raw comparator implementation

This adds a new interface implementation to ProtobufComparator that allows us to compare protobuf objects without deserializing them. This should eliminate a major performance bottleneck in any job that uses a protobuf object as a grouping, sorting, or joining key.