public class BatchClientImpl extends Object implements BatchClient
Modifier and Type | Method and Description |
---|---|
BatchReadOnlyTransaction |
batchReadOnlyTransaction(BatchTransactionId batchTransactionId)
Returns a
BatchReadOnlyTransaction context in which multiple reads and/or queries can
be performed. |
BatchReadOnlyTransaction |
batchReadOnlyTransaction(TimestampBound bound)
Returns a
BatchReadOnlyTransaction context in which multiple reads and/or queries can
be performed. |
public BatchReadOnlyTransaction batchReadOnlyTransaction(TimestampBound bound)
BatchClient
BatchReadOnlyTransaction
context in which multiple reads and/or queries can
be performed. All reads/queries will use the same timestamp, and the timestamp can be inspected
after this transaction is created successfully. This is a blocking method since it waits to
finish the rpcs.
Note that the bounded staleness modes, TimestampBound.Mode.MIN_READ_TIMESTAMP
and
TimestampBound.Mode.MAX_STALENESS
, are not supported for BatchReadOnlyTransaction
.
batchReadOnlyTransaction
in interface BatchClient
bound
- the timestamp bound at which to perform the read
BatchReadOnlyTransaction txn = batchClient.batchReadOnlyTransaction(TimestampBound.strong());
public BatchReadOnlyTransaction batchReadOnlyTransaction(BatchTransactionId batchTransactionId)
BatchClient
BatchReadOnlyTransaction
context in which multiple reads and/or queries can
be performed. This is a non-blocking method. All reads/queries will use the same timestamp, and
the timestamp can be inspected after this transaction is created successfully.
This method is useful to recreate a BatchReadOnlyTransaction object from an existing batchTransactionId. For example one might send the transaction id to a different process or machine and recreate the transaction object there.
batchReadOnlyTransaction
in interface BatchClient
batchTransactionId
- to re-initialize the transaction, re-using the timestamp for
successive read/query.Copyright © 2021 Google LLC. All rights reserved.