| Package | Description | 
|---|---|
| com.google.cloud.spanner | 
 A client for Cloud Spanner - A no-compromise relational database service. 
 | 
| Modifier and Type | Interface and Description | 
|---|---|
interface  | 
BatchReadOnlyTransaction
BatchReadOnlyTransaction can be configured to read at timestamps in the past and allows
 for exporting arbitrarily large amounts of data from Cloud Spanner databases. | 
| Modifier and Type | Method and Description | 
|---|---|
ReadOnlyTransaction | 
DatabaseClient.readOnlyTransaction()
Returns a read-only transaction context in which a multiple reads and/or queries can be
 performed using  
TimestampBound.strong() concurrency. | 
ReadOnlyTransaction | 
DatabaseClient.readOnlyTransaction(TimestampBound bound)
Returns a read-only transaction context in which a multiple reads and/or queries can be
 performed at the given timestamp bound. 
 | 
ReadOnlyTransaction | 
DatabaseClient.singleUseReadOnlyTransaction()
Returns a read-only transaction context in which a single read or query can be performed using
  
TimestampBound.strong() concurrency. | 
ReadOnlyTransaction | 
DatabaseClient.singleUseReadOnlyTransaction(TimestampBound bound)
Returns a read-only transaction context in which a single read or query can be performed at
 given timestamp bound. 
 | 
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