def merge_context(self, src=None):
if src is None:
# This condition will be true only if the server doesn't return a
# txn context after a query or mutation.
return
util.merge_lin_reads(self._ctx.lin_read, src.lin_read)
self._dc.merge_lin_reads(src.lin_read)
if self._ctx.start_ts == 0:
self._ctx.start_ts = src.start_ts
elif self._ctx.start_ts != src.start_ts:
# This condition should never be true.
raise Exception('StartTs mismatch')
self._ctx.keys.extend(src.keys[:])
def merge_context(self, txn_context):
"""Merges context from a txn context into the current txn state."""
## This will be true if the server does not return a txn context after
## a query or a mutation
if not txn_context: return
if self.start_ts == 0:
self.start_ts = txn_context.start_ts
elif self.start_ts != txn_context.start_ts:
raise Exception(
'StartTs mismatch in txn(%s) vs updated context(%s)' %
(self.start_ts, txn_context.start_ts))
self.client.merge_context(txn_context)
util.merge_lin_reads(self.lin_read, txn_context.lin_read)
self.keys = txn_context.keys[:]
def merge_context(self, context):
"""Merges txn_context into client's state."""
util.merge_lin_reads(self.lin_read, context.lin_read)
def common_test(self, lr1, lr2, expected):
self.assertTrue(
helper.are_lin_reads_equal(util.merge_lin_reads(lr1, lr2),
expected))
self.assertTrue(helper.are_lin_reads_equal(lr1, expected))
def merge_lin_reads(self, src):
util.merge_lin_reads(self._lin_read, src)