google::cloud::spanner::Transaction::SingleUseOptions Class Reference

Options for "single-use", ReadOnly transactions, where Spanner chooses the read timestamp, subject to user-provided bounds. More...

#include <google/cloud/spanner/transaction.h>

Public Member Functions
	SingleUseOptions (ReadOnlyOptions opts)
	SingleUseOptions (Timestamp min_read_timestamp)
	SingleUseOptions (std::chrono::nanoseconds max_staleness)

Detailed Description

Options for "single-use", ReadOnly transactions, where Spanner chooses the read timestamp, subject to user-provided bounds.

This allows reading without blocking.

Because selection of the timestamp requires knowledge of which rows will be read, a single-use transaction can only be used with one read. See Client::Read() and Client::ExecuteQuery(). SingleUseOptions cannot be used to construct an application-level Transaction.

Constructor & Destructor Documentation

SingleUseOptions() [1/3]

google::cloud::spanner::Transaction::SingleUseOptions::SingleUseOptions

(

ReadOnlyOptions

opts

)

SingleUseOptions() [2/3]

google::cloud::spanner::Transaction::SingleUseOptions::SingleUseOptions ( Timestamp  min_read_timestamp )

explicit

SingleUseOptions() [3/3]

google::cloud::spanner::Transaction::SingleUseOptions::SingleUseOptions ( std::chrono::nanoseconds  max_staleness )

explicit