Class RemoteSpannerHelper

public class RemoteSpannerHelper

Utility that provides access to a Cloud Spanner instance to use for tests, and allows uniquely named test databases to be created within that instance.

Inheritance

java.lang.Object > RemoteSpannerHelper

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

create(InstanceId instanceId)

public static RemoteSpannerHelper create(InstanceId instanceId)

Creates a RemoteSpannerHelper bound to the given instance ID. All databases created using this will be created in the given instance.

Parameter

Name	Description
instanceId	`InstanceId`

Returns

Type	Description
RemoteSpannerHelper

create(SpannerOptions options, InstanceId instanceId)

public static RemoteSpannerHelper create(SpannerOptions options, InstanceId instanceId)

Creates a RemoteSpannerHelper for the given option and bound to the given instance ID. All databases created using this will be created in the given instance.

Parameters

Name	Description
options	`SpannerOptions`
instanceId	`InstanceId`

Returns

Type	Description
RemoteSpannerHelper

Constructors

RemoteSpannerHelper(SpannerOptions options, InstanceId instanceId, Spanner client)

protected RemoteSpannerHelper(SpannerOptions options, InstanceId instanceId, Spanner client)

Parameters

Name	Description
options	`SpannerOptions`
instanceId	`InstanceId`
client	`Spanner`

Methods

cleanUp()

public void cleanUp()

Deletes all the databases created via createTestDatabase. Shuts down the client.

createTestDatabase(Iterable<String> statements)

public Database createTestDatabase(Iterable<String> statements)

Creates a test database defined by statements in the test instance. A CREATE DATABASE ... statement should not be included; an appropriate name will be chosen and the statement generated accordingly.

Parameter

Name	Description
statements	`Iterable<String>`

Returns

Type	Description
Database

Exceptions

Type	Description
SpannerException

createTestDatabase(String[] statements)

public Database createTestDatabase(String[] statements)

Creates a test database defined by statements. A CREATE DATABASE ... statement should not be included; an appropriate name will be chosen and the statement generated accordingly.

Parameter

Name	Description
statements	`String[]`

Returns

Type	Description
Database

Exceptions

Type	Description
SpannerException

getBatchClient(Database db)

public BatchClient getBatchClient(Database db)

Parameter

Name	Description
db	`Database`

Returns

Type	Description
BatchClient

getClient()

public Spanner getClient()

Returns

Type	Description
Spanner

getDatabaseClient(Database db)

public DatabaseClient getDatabaseClient(Database db)

Parameter

Name	Description
db	`Database`

Returns

Type	Description
DatabaseClient

getInstanceId()

public InstanceId getInstanceId()

Returns

Type	Description
InstanceId

getOptions()

public SpannerOptions getOptions()

Returns

Type	Description
SpannerOptions

getUniqueBackupId()

public String getUniqueBackupId()

Returns a backup id which is guaranteed to be unique within the context of this environment.

Returns

Type	Description
String

getUniqueDatabaseId()

public String getUniqueDatabaseId()

Returns a database id which is guaranteed to be unique within the context of this environment.

Returns

Type	Description
String

isEmulator() (deprecated)

public boolean isEmulator()

Deprecated. use EmulatorSpannerHelper#isUsingEmulator() instead.

Checks whether the emulator is being used.

Returns

Type	Description
boolean	true if the emulator is being used. Returns false otherwise.