tree 3f6f24b0ba8c6e4f820d03bc3c056d5d5dca7cb6
parent 97b4f18143ad630a49ef98a31b382b2d5e083158
author Alex Fandrianto <alexfandrianto@google.com> 1468454487 -0700
committer Alex Fandrianto <alexfandrianto@google.com> 1468454487 -0700

java/syncbase: Expose more ways to Watch

AddWatchChangeHandlerOptions now has a builder, though it might
be somewhat verbose to use.

Watch can now use these filters:
- specific collection
- specific row
- collection prefix
- row prefix

Tests added for some of them (not exhaustive)

Change-Id: Ib823421932cc6c26c999a93a33865bbf95a0380e