Add expected database schema version to RPCs.
1) Client side
- Minimum changes to client API. Database version
is piped around internally for use in RPC.
- Schema version added to BatchOptions during
creation of batch.
- RPC API change do pass a int64 schema version number
as param for all read write methods of database, table
and row.
2) Server side
- schema version number is stored in databaseData object
- schema version is read from db for each write operation
that needs to check version. In future leveldb is expected
to have internal caching layer making the read op
inexpensive.
MultiPart: 1/2
Change-Id: Ic7443e9087cf51fb96cb35b30918fa24665dbcbc
16 files changed
