Class DatabaseAdminClient (2.34.0-rc)

Cloud Spanner Database Admin API.

The Cloud Spanner Database Admin API can be used to:

create, drop, and list databases
update the schema of pre-existing databases
create, delete, copy and list backups for a database
restore a database from an existing backup

Equality

Instances of this class created via copy-construction or copy-assignment always compare equal. Instances created with equal std::shared_ptr<*Connection> objects compare equal. Objects that compare equal share the same underlying resources.

Performance

Creating a new instance of this class is a relatively expensive operation, new objects establish new connections to the service. In contrast, copy-construction, move-construction, and the corresponding assignment operations are relatively efficient as the copies share all underlying resources.

Thread Safety

Concurrent access to different instances of this class, even if they compare equal, is guaranteed to work. Two or more threads operating on the same instance of this class is not guaranteed to work. Since copy-construction and move-construction is a relatively efficient operation, consider using such a copy when using this class from multiple threads.

Constructors

DatabaseAdminClient(DatabaseAdminClient const &)

Copy and move support

Parameter
Name	Description
	`DatabaseAdminClient const &`

DatabaseAdminClient(DatabaseAdminClient &&)

Copy and move support

Parameter
Name	Description
	`DatabaseAdminClient &&`

DatabaseAdminClient(std::shared_ptr< DatabaseAdminConnection >, Options)

Parameters
Name	Description
`connection`	`std::shared_ptr< DatabaseAdminConnection >`
`opts`	`Options`

Operators

operator=(DatabaseAdminClient const &)

Copy and move support

Parameter
Name	Description
	`DatabaseAdminClient const &`

Returns
Type	Description
`DatabaseAdminClient &`

operator=(DatabaseAdminClient &&)

Copy and move support

Parameter
Name	Description
	`DatabaseAdminClient &&`

Returns
Type	Description
`DatabaseAdminClient &`

Functions

ListDatabases(std::string const &, Options)

Lists Cloud Spanner databases.

Parameters
Name	Description
`parent`	`std::string const &` Required. The instance whose databases should be listed. Values are of the form `projects/<project>/instances/<instance>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::Database >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.Database, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListDatabases(google::spanner::admin::database::v1::ListDatabasesRequest, Options)

Lists Cloud Spanner databases.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::ListDatabasesRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.ListDatabasesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::Database >

CreateDatabase(std::string const &, std::string const &, Options)

Creates a new Cloud Spanner database and starts to prepare it for serving.

The returned long-running operation will have a name of the format <database_name>/operations/<operation_id> and can be used to track preparation of the database. The metadata field type is CreateDatabaseMetadata. The response field type is Database, if successful.

Parameters
Name	Description
`parent`	`std::string const &` Required. The name of the instance that will serve the new database. Values are of the form `projects/<project>/instances/<instance>`.
`create_statement`	`std::string const &` Required. A `CREATE DATABASE` statement, which specifies the ID of the new database. The database ID must conform to the regular expression `[a-z][a-z0-9_\-]*[a-z0-9]` and be between 2 and 30 characters in length. If the database ID is a reserved word or if it contains a hyphen, the database ID must be enclosed in backticks.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Database > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.Database proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

CreateDatabase(NoAwaitTag, std::string const &, std::string const &, Options)

Creates a new Cloud Spanner database and starts to prepare it for serving.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`parent`	`std::string const &`
`create_statement`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateDatabase(google::spanner::admin::database::v1::CreateDatabaseRequest const &, Options)

Creates a new Cloud Spanner database and starts to prepare it for serving.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::CreateDatabaseRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.CreateDatabaseRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Database > >

CreateDatabase(NoAwaitTag, google::spanner::admin::database::v1::CreateDatabaseRequest const &, Options)

Creates a new Cloud Spanner database and starts to prepare it for serving.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::spanner::admin::database::v1::CreateDatabaseRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateDatabase(google::longrunning::Operation const &, Options)

Creates a new Cloud Spanner database and starts to prepare it for serving.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::spanner::admin::database::v1::Database > >`

GetDatabase(std::string const &, Options)

Gets the state of a Cloud Spanner database.

Parameters
Name	Description
`name`	`std::string const &` Required. The name of the requested database. Values are of the form `projects/<project>/instances/<instance>/databases/<database>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::Database >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.Database) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetDatabase(google::spanner::admin::database::v1::GetDatabaseRequest const &, Options)

Gets the state of a Cloud Spanner database.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::GetDatabaseRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.GetDatabaseRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::Database >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.Database) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateDatabase(google::spanner::admin::database::v1::Database const &, google::protobuf::FieldMask const &, Options)

Updates a Cloud Spanner database.

The returned long-running operation can be used to track the progress of updating the database. If the named database does not exist, returns NOT_FOUND.

While the operation is pending:

The database's reconciling field is set to true.
Cancelling the operation is best-effort. If the cancellation succeeds, the operation metadata's cancel_time is set, the updates are reverted, and the operation terminates with a CANCELLED status.
New UpdateDatabase requests will return a FAILED_PRECONDITION error until the pending operation is done (returns successfully or with error).
Reading the database via the API continues to give the pre-request values.

Upon completion of the returned operation:

The new values are in effect and readable via the API.
The database's reconciling field becomes false.

The returned long-running operation will have a name of the format projects/<project>/instances/<instance>/databases/<database>/operations/<operation_id> and can be used to track the database modification. The metadata field type is UpdateDatabaseMetadata. The response field type is Database, if successful.

Parameters
Name	Description
`database`	`google::spanner::admin::database::v1::Database const &` Required. The database to update. The `name` field of the database is of the form `projects/<project>/instances/<instance>/databases/<database>`.
`update_mask`	`google::protobuf::FieldMask const &` Required. The list of fields to update. Currently, only `enable_drop_protection` field can be updated.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Database > >

UpdateDatabase(NoAwaitTag, google::spanner::admin::database::v1::Database const &, google::protobuf::FieldMask const &, Options)

Updates a Cloud Spanner database.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`database`	`google::spanner::admin::database::v1::Database const &`
`update_mask`	`google::protobuf::FieldMask const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateDatabase(google::spanner::admin::database::v1::UpdateDatabaseRequest const &, Options)

Updates a Cloud Spanner database.

The returned long-running operation can be used to track the progress of updating the database. If the named database does not exist, returns NOT_FOUND.

While the operation is pending:

The database's reconciling field is set to true.
Cancelling the operation is best-effort. If the cancellation succeeds, the operation metadata's cancel_time is set, the updates are reverted, and the operation terminates with a CANCELLED status.
New UpdateDatabase requests will return a FAILED_PRECONDITION error until the pending operation is done (returns successfully or with error).
Reading the database via the API continues to give the pre-request values.

Upon completion of the returned operation:

The new values are in effect and readable via the API.
The database's reconciling field becomes false.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::UpdateDatabaseRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.UpdateDatabaseRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Database > >

UpdateDatabase(NoAwaitTag, google::spanner::admin::database::v1::UpdateDatabaseRequest const &, Options)

Updates a Cloud Spanner database.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::spanner::admin::database::v1::UpdateDatabaseRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateDatabase(google::longrunning::Operation const &, Options)

Updates a Cloud Spanner database.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::spanner::admin::database::v1::Database > >`

UpdateDatabaseDdl(std::string const &, std::vector< std::string > const &, Options)

Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc.

The returned long-running operation will have a name of the format <database_name>/operations/<operation_id> and can be used to track execution of the schema change(s). The metadata field type is UpdateDatabaseDdlMetadata. The operation has no response.

Parameters
Name	Description
`database`	`std::string const &` Required. The database to update.
`statements`	`std::vector< std::string > const &` Required. DDL statements to be applied to the database.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::UpdateDatabaseDdlMetadata > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

UpdateDatabaseDdl(NoAwaitTag, std::string const &, std::vector< std::string > const &, Options)

Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`database`	`std::string const &`
`statements`	`std::vector< std::string > const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateDatabaseDdl(google::spanner::admin::database::v1::UpdateDatabaseDdlRequest const &, Options)

Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::UpdateDatabaseDdlRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.UpdateDatabaseDdlRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::UpdateDatabaseDdlMetadata > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

UpdateDatabaseDdl(NoAwaitTag, google::spanner::admin::database::v1::UpdateDatabaseDdlRequest const &, Options)

Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::spanner::admin::database::v1::UpdateDatabaseDdlRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateDatabaseDdl(google::longrunning::Operation const &, Options)

Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::spanner::admin::database::v1::UpdateDatabaseDdlMetadata > >`

DropDatabase(std::string const &, Options)

Drops (aka deletes) a Cloud Spanner database.

Completed backups for the database will be retained according to their expire_time. Note: Cloud Spanner might continue to accept requests for a few seconds after the database has been deleted.

Parameters
Name	Description
`database`	`std::string const &` Required. The database to be dropped.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DropDatabase(google::spanner::admin::database::v1::DropDatabaseRequest const &, Options)

Drops (aka deletes) a Cloud Spanner database.

Completed backups for the database will be retained according to their expire_time. Note: Cloud Spanner might continue to accept requests for a few seconds after the database has been deleted.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::DropDatabaseRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.DropDatabaseRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

GetDatabaseDdl(std::string const &, Options)

Returns the schema of a Cloud Spanner database as a list of formatted DDL statements.

This method does not show pending schema updates, those may be queried using the Operations API.

Parameters
Name	Description
`database`	`std::string const &` Required. The database whose schema we wish to get. Values are of the form `projects/<project>/instances/<instance>/databases/<database>`
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::GetDatabaseDdlResponse >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.GetDatabaseDdlResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetDatabaseDdl(google::spanner::admin::database::v1::GetDatabaseDdlRequest const &, Options)

Returns the schema of a Cloud Spanner database as a list of formatted DDL statements.

This method does not show pending schema updates, those may be queried using the Operations API.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::GetDatabaseDdlRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.GetDatabaseDdlRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::GetDatabaseDdlResponse >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.GetDatabaseDdlResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

SetIamPolicy(std::string const &, google::iam::v1::Policy const &, Options)

Sets the access control policy on a database or backup resource.

Replaces any existing policy.

Authorization requires spanner.databases.setIamPolicy permission on resource. For backups, authorization requires spanner.backups.setIamPolicy permission on resource.

Parameters
Name	Description
`resource`	`std::string const &` REQUIRED: The resource for which the policy is being specified. See the operation documentation for the appropriate value for this field.
`policy`	`google::iam::v1::Policy const &` REQUIRED: The complete policy to be applied to the `resource`. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Cloud Platform services (such as Projects) might reject them.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

SetIamPolicy(std::string const &, IamUpdater const &, Options)

Updates the IAM policy for resource using an optimistic concurrency control loop.

The loop fetches the current policy for resource, and passes it to updater, which should return the new policy. This new policy should use the current etag so that the read-modify-write cycle can detect races and rerun the update when there is a mismatch. If the new policy does not have an etag, the existing policy will be blindly overwritten. If updater does not yield a policy, the control loop is terminated and kCancelled is returned.

Parameters
Name	Description
`resource`	`std::string const &` Required. The resource for which the policy is being specified. See the operation documentation for the appropriate value for this field.
`updater`	`IamUpdater const &` Required. Functor to map the current policy to a new one.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	google::iam::v1::Policy

SetIamPolicy(google::iam::v1::SetIamPolicyRequest const &, Options)

Sets the access control policy on a database or backup resource.

Replaces any existing policy.

Authorization requires spanner.databases.setIamPolicy permission on resource. For backups, authorization requires spanner.backups.setIamPolicy permission on resource.

Parameters
Name	Description
`request`	`google::iam::v1::SetIamPolicyRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.iam.v1.SetIamPolicyRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetIamPolicy(std::string const &, Options)

Gets the access control policy for a database or backup resource.

Returns an empty policy if a database or backup exists but does not have a policy set.

Authorization requires spanner.databases.getIamPolicy permission on resource. For backups, authorization requires spanner.backups.getIamPolicy permission on resource.

Parameters
Name	Description
`resource`	`std::string const &` REQUIRED: The resource for which the policy is being requested. See the operation documentation for the appropriate value for this field.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetIamPolicy(google::iam::v1::GetIamPolicyRequest const &, Options)

Gets the access control policy for a database or backup resource.

Returns an empty policy if a database or backup exists but does not have a policy set.

Authorization requires spanner.databases.getIamPolicy permission on resource. For backups, authorization requires spanner.backups.getIamPolicy permission on resource.

Parameters
Name	Description
`request`	`google::iam::v1::GetIamPolicyRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.iam.v1.GetIamPolicyRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

TestIamPermissions(std::string const &, std::vector< std::string > const &, Options)

Returns permissions that the caller has on the specified database or backup resource.

Attempting this RPC on a non-existent Cloud Spanner database will result in a NOT_FOUND error if the user has spanner.databases.list permission on the containing Cloud Spanner instance. Otherwise returns an empty set of permissions. Calling this method on a backup that does not exist will result in a NOT_FOUND error if the user has spanner.backups.list permission on the containing instance.

Parameters
Name	Description
`resource`	`std::string const &` REQUIRED: The resource for which the policy detail is being requested. See the operation documentation for the appropriate value for this field.
`permissions`	`std::vector< std::string > const &` The set of permissions to check for the `resource`. Permissions with wildcards (such as '' or 'storage.') are not allowed. For more information see IAM Overview.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::TestIamPermissionsResponse >`	the result of the RPC. The response message type (google.iam.v1.TestIamPermissionsResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

TestIamPermissions(google::iam::v1::TestIamPermissionsRequest const &, Options)

Returns permissions that the caller has on the specified database or backup resource.

Parameters
Name	Description
`request`	`google::iam::v1::TestIamPermissionsRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.iam.v1.TestIamPermissionsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::TestIamPermissionsResponse >`	the result of the RPC. The response message type (google.iam.v1.TestIamPermissionsResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

CreateBackup(std::string const &, google::spanner::admin::database::v1::Backup const &, std::string const &, Options)

Starts creating a new Cloud Spanner Backup.

The returned backup long-running operation will have a name of the format projects/<project>/instances/<instance>/backups/<backup>/operations/<operation_id> and can be used to track creation of the backup. The metadata field type is CreateBackupMetadata. The response field type is Backup, if successful. Cancelling the returned operation will stop the creation and delete the backup. There can be only one pending backup creation per database. Backup creation of different databases can run concurrently.

Parameters
Name	Description
`parent`	`std::string const &` Required. The name of the instance in which the backup will be created. This must be the same instance that contains the database the backup will be created from. The backup will be stored in the location(s) specified in the instance configuration of this instance. Values are of the form `projects/<project>/instances/<instance>`.
`backup`	`google::spanner::admin::database::v1::Backup const &` Required. The backup to create.
`backup_id`	`std::string const &` Required. The id of the backup to be created. The `backup_id` appended to `parent` forms the full backup name of the form `projects/<project>/instances/<instance>/backups/<backup_id>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Backup > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.Backup proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

CreateBackup(NoAwaitTag, std::string const &, google::spanner::admin::database::v1::Backup const &, std::string const &, Options)

Starts creating a new Cloud Spanner Backup.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`parent`	`std::string const &`
`backup`	`google::spanner::admin::database::v1::Backup const &`
`backup_id`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateBackup(google::spanner::admin::database::v1::CreateBackupRequest const &, Options)

Starts creating a new Cloud Spanner Backup.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::CreateBackupRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.CreateBackupRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Backup > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.Backup proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

CreateBackup(NoAwaitTag, google::spanner::admin::database::v1::CreateBackupRequest const &, Options)

Starts creating a new Cloud Spanner Backup.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::spanner::admin::database::v1::CreateBackupRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateBackup(google::longrunning::Operation const &, Options)

Starts creating a new Cloud Spanner Backup.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::spanner::admin::database::v1::Backup > >`

CopyBackup(std::string const &, std::string const &, std::string const &, google::protobuf::Timestamp const &, Options)

Starts copying a Cloud Spanner Backup.

The returned backup long-running operation will have a name of the format projects/<project>/instances/<instance>/backups/<backup>/operations/<operation_id> and can be used to track copying of the backup. The operation is associated with the destination backup. The metadata field type is CopyBackupMetadata. The response field type is Backup, if successful. Cancelling the returned operation will stop the copying and delete the destination backup. Concurrent CopyBackup requests can run on the same source backup.

Parameters
Name	Description
`parent`	`std::string const &` Required. The name of the destination instance that will contain the backup copy. Values are of the form: `projects/<project>/instances/<instance>`.
`backup_id`	`std::string const &` Required. The id of the backup copy. The `backup_id` appended to `parent` forms the full backup_uri of the form `projects/<project>/instances/<instance>/backups/<backup>`.
`source_backup`	`std::string const &` Required. The source backup to be copied. The source backup needs to be in READY state for it to be copied. Once CopyBackup is in progress, the source backup cannot be deleted or cleaned up on expiration until CopyBackup is finished. Values are of the form: `projects/<project>/instances/<instance>/backups/<backup>`.
`expire_time`	`google::protobuf::Timestamp const &` Required. The expiration time of the backup in microsecond granularity. The expiration time must be at least 6 hours and at most 366 days from the `create_time` of the source backup. Once the `expire_time` has passed, the backup is eligible to be automatically deleted by Cloud Spanner to free the resources used by the backup.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Backup > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.Backup proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

CopyBackup(NoAwaitTag, std::string const &, std::string const &, std::string const &, google::protobuf::Timestamp const &, Options)

Starts copying a Cloud Spanner Backup.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`parent`	`std::string const &`
`backup_id`	`std::string const &`
`source_backup`	`std::string const &`
`expire_time`	`google::protobuf::Timestamp const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CopyBackup(google::spanner::admin::database::v1::CopyBackupRequest const &, Options)

Starts copying a Cloud Spanner Backup.

The returned backup long-running operation will have a name of the format projects/<project>/instances/<instance>/backups/<backup>/operations/<operation_id> and can be used to track copying of the backup. The operation is associated with the destination backup. The metadata field type is CopyBackupMetadata. The response field type is Backup, if successful. Cancelling the returned operation will stop the copying and delete the destination backup. Concurrent CopyBackup requests can run on the same source backup.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::CopyBackupRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.CopyBackupRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Backup > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.spanner.admin.database.v1.Backup proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

CopyBackup(NoAwaitTag, google::spanner::admin::database::v1::CopyBackupRequest const &, Options)

Starts copying a Cloud Spanner Backup.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::spanner::admin::database::v1::CopyBackupRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CopyBackup(google::longrunning::Operation const &, Options)

Starts copying a Cloud Spanner Backup.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::spanner::admin::database::v1::Backup > >`

GetBackup(std::string const &, Options)

Gets metadata on a pending or completed Backup.

Parameters
Name	Description
`name`	`std::string const &` Required. Name of the backup. Values are of the form `projects/<project>/instances/<instance>/backups/<backup>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::Backup >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.Backup) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetBackup(google::spanner::admin::database::v1::GetBackupRequest const &, Options)

Gets metadata on a pending or completed Backup.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::GetBackupRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.GetBackupRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::Backup >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.Backup) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateBackup(google::spanner::admin::database::v1::Backup const &, google::protobuf::FieldMask const &, Options)

Updates a pending or completed Backup.

Parameters
Name	Description
`backup`	`google::spanner::admin::database::v1::Backup const &` Required. The backup to update. `backup.name`, and the fields to be updated as specified by `update_mask` are required. Other fields are ignored. Update is only supported for the following fields: `backup.expire_time`.
`update_mask`	`google::protobuf::FieldMask const &` Required. A mask specifying which fields (e.g. `expire_time`) in the Backup resource should be updated. This mask is relative to the Backup resource, not to the request message. The field mask must always be specified; this prevents any future fields from being erased accidentally by clients that do not know about them.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::Backup >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.Backup) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateBackup(google::spanner::admin::database::v1::UpdateBackupRequest const &, Options)

Updates a pending or completed Backup.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::UpdateBackupRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.UpdateBackupRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::Backup >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.Backup) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

DeleteBackup(std::string const &, Options)

Deletes a pending or completed Backup.

Parameters
Name	Description
`name`	`std::string const &` Required. Name of the backup to delete. Values are of the form `projects/<project>/instances/<instance>/backups/<backup>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DeleteBackup(google::spanner::admin::database::v1::DeleteBackupRequest const &, Options)

Deletes a pending or completed Backup.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::DeleteBackupRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.DeleteBackupRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

ListBackups(std::string const &, Options)

Lists completed and pending backups.

Backups returned are ordered by create_time in descending order, starting from the most recent create_time.

Parameters
Name	Description
`parent`	`std::string const &` Required. The instance to list backups from. Values are of the form `projects/<project>/instances/<instance>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::Backup >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.Backup, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListBackups(google::spanner::admin::database::v1::ListBackupsRequest, Options)

Lists completed and pending backups.

Backups returned are ordered by create_time in descending order, starting from the most recent create_time.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::ListBackupsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.ListBackupsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::Backup >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.Backup, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

RestoreDatabase(std::string const &, std::string const &, std::string const &, Options)

Create a new database by restoring from a completed backup.

The new database must be in the same project and in an instance with the same instance configuration as the instance containing the backup. The returned database long-running operation has a name of the format projects/<project>/instances/<instance>/databases/<database>/operations/<operation_id>, and can be used to track the progress of the operation, and to cancel it. The metadata field type is RestoreDatabaseMetadata. The response type is Database, if successful. Cancelling the returned operation will stop the restore and delete the database. There can be only one database being restored into an instance at a time. Once the restore operation completes, a new restore operation can be initiated, without waiting for the optimize operation associated with the first restore to complete.

Parameters
Name	Description
`parent`	`std::string const &` Required. The name of the instance in which to create the restored database. This instance must be in the same project and have the same instance configuration as the instance containing the source backup. Values are of the form `projects/<project>/instances/<instance>`.
`database_id`	`std::string const &` Required. The id of the database to create and restore to. This database must not already exist. The `database_id` appended to `parent` forms the full database name of the form `projects/<project>/instances/<instance>/databases/<database_id>`.
`backup`	`std::string const &` Name of the backup from which to restore. Values are of the form `projects/<project>/instances/<instance>/backups/<backup>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Database > >

RestoreDatabase(NoAwaitTag, std::string const &, std::string const &, std::string const &, Options)

Create a new database by restoring from a completed backup.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`parent`	`std::string const &`
`database_id`	`std::string const &`
`backup`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

RestoreDatabase(google::spanner::admin::database::v1::RestoreDatabaseRequest const &, Options)

Create a new database by restoring from a completed backup.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::RestoreDatabaseRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.RestoreDatabaseRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::spanner::admin::database::v1::Database > >

RestoreDatabase(NoAwaitTag, google::spanner::admin::database::v1::RestoreDatabaseRequest const &, Options)

Create a new database by restoring from a completed backup.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::spanner::admin::database::v1::RestoreDatabaseRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

RestoreDatabase(google::longrunning::Operation const &, Options)

Create a new database by restoring from a completed backup.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::spanner::admin::database::v1::Database > >`

ListDatabaseOperations(std::string const &, Options)

Lists database longrunning-operations.

A database operation has a name of the form projects/<project>/instances/<instance>/databases/<database>/operations/<operation>. The long-running operation metadata field type metadata.type_url describes the type of the metadata. Operations returned include those that have completed/failed/canceled within the last 7 days, and pending operations.

Parameters
Name	Description
`parent`	`std::string const &` Required. The instance of the database operations. Values are of the form `projects/<project>/instances/<instance>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListDatabaseOperations(google::spanner::admin::database::v1::ListDatabaseOperationsRequest, Options)

Lists database longrunning-operations.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::ListDatabaseOperationsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.ListDatabaseOperationsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListBackupOperations(std::string const &, Options)

Lists the backup long-running operations in the given instance.

A backup operation has a name of the form projects/<project>/instances/<instance>/backups/<backup>/operations/<operation>. The long-running operation metadata field type metadata.type_url describes the type of the metadata. Operations returned include those that have completed/failed/canceled within the last 7 days, and pending operations. Operations returned are ordered by operation.metadata.value.progress.start_time in descending order starting from the most recently started operation.

Parameters
Name	Description
`parent`	`std::string const &` Required. The instance of the backup operations. Values are of the form `projects/<project>/instances/<instance>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListBackupOperations(google::spanner::admin::database::v1::ListBackupOperationsRequest, Options)

Lists the backup long-running operations in the given instance.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::ListBackupOperationsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.ListBackupOperationsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListDatabaseRoles(std::string const &, Options)

Lists Cloud Spanner database roles.

Parameters
Name	Description
`parent`	`std::string const &` Required. The database whose roles should be listed. Values are of the form `projects/<project>/instances/<instance>/databases/<database>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::DatabaseRole >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.DatabaseRole, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListDatabaseRoles(google::spanner::admin::database::v1::ListDatabaseRolesRequest, Options)

Lists Cloud Spanner database roles.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::ListDatabaseRolesRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.ListDatabaseRolesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::DatabaseRole >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.DatabaseRole, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

CreateBackupSchedule(std::string const &, google::spanner::admin::database::v1::BackupSchedule const &, std::string const &, Options)

Creates a new backup schedule.

Parameters
Name	Description
`parent`	`std::string const &` Required. The name of the database that this backup schedule applies to.
`backup_schedule`	`google::spanner::admin::database::v1::BackupSchedule const &` Required. The backup schedule to create.
`backup_schedule_id`	`std::string const &` Required. The Id to use for the backup schedule. The `backup_schedule_id` appended to `parent` forms the full backup schedule name of the form `projects/<project>/instances/<instance>/databases/<database>/backupSchedules/<backup_schedule_id>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::BackupSchedule >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.BackupSchedule) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

CreateBackupSchedule(google::spanner::admin::database::v1::CreateBackupScheduleRequest const &, Options)

Creates a new backup schedule.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::CreateBackupScheduleRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.CreateBackupScheduleRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::BackupSchedule >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.BackupSchedule) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetBackupSchedule(std::string const &, Options)

Gets backup schedule for the input schedule name.

Parameters
Name	Description
`name`	`std::string const &` Required. The name of the schedule to retrieve. Values are of the form `projects/<project>/instances/<instance>/databases/<database>/backupSchedules/<backup_schedule_id>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::BackupSchedule >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.BackupSchedule) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetBackupSchedule(google::spanner::admin::database::v1::GetBackupScheduleRequest const &, Options)

Gets backup schedule for the input schedule name.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::GetBackupScheduleRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.GetBackupScheduleRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::BackupSchedule >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.BackupSchedule) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateBackupSchedule(google::spanner::admin::database::v1::BackupSchedule const &, google::protobuf::FieldMask const &, Options)

Updates a backup schedule.

Parameters
Name	Description
`backup_schedule`	`google::spanner::admin::database::v1::BackupSchedule const &` Required. The backup schedule to update. `backup_schedule.name`, and the fields to be updated as specified by `update_mask` are required. Other fields are ignored.
`update_mask`	`google::protobuf::FieldMask const &` Required. A mask specifying which fields in the BackupSchedule resource should be updated. This mask is relative to the BackupSchedule resource, not to the request message. The field mask must always be specified; this prevents any future fields from being erased accidentally.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::BackupSchedule >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.BackupSchedule) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateBackupSchedule(google::spanner::admin::database::v1::UpdateBackupScheduleRequest const &, Options)

Updates a backup schedule.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::UpdateBackupScheduleRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.UpdateBackupScheduleRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::spanner::admin::database::v1::BackupSchedule >`	the result of the RPC. The response message type (google.spanner.admin.database.v1.BackupSchedule) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

DeleteBackupSchedule(std::string const &, Options)

Deletes a backup schedule.

Parameters
Name	Description
`name`	`std::string const &` Required. The name of the schedule to delete. Values are of the form `projects/<project>/instances/<instance>/databases/<database>/backupSchedules/<backup_schedule_id>`.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DeleteBackupSchedule(google::spanner::admin::database::v1::DeleteBackupScheduleRequest const &, Options)

Deletes a backup schedule.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::DeleteBackupScheduleRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.DeleteBackupScheduleRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

ListBackupSchedules(std::string const &, Options)

Lists all the backup schedules for the database.

Parameters
Name	Description
`parent`	`std::string const &` Required. Database is the parent resource whose backup schedules should be listed. Values are of the form `projects/<project>/instances/<instance>/databases/<database>`
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::BackupSchedule >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.BackupSchedule, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListBackupSchedules(google::spanner::admin::database::v1::ListBackupSchedulesRequest, Options)

Lists all the backup schedules for the database.

Parameters
Name	Description
`request`	`google::spanner::admin::database::v1::ListBackupSchedulesRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.spanner.admin.database.v1.ListBackupSchedulesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::spanner::admin::database::v1::BackupSchedule >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.spanner.admin.database.v1.BackupSchedule, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListOperations(std::string const &, std::string const &, Options)

Lists operations that match the specified filter in the request.

If the server doesn't support this method, it returns UNIMPLEMENTED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation's parent resource.
`filter`	`std::string const &` The standard list filter.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListOperations(google::longrunning::ListOperationsRequest, Options)

Lists operations that match the specified filter in the request.

If the server doesn't support this method, it returns UNIMPLEMENTED.

Parameters
Name	Description
`request`	`google::longrunning::ListOperationsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.ListOperationsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

GetOperation(std::string const &, Options)

Gets the latest state of a long-running operation.

Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`	the result of the RPC. The response message type (google.longrunning.Operation) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetOperation(google::longrunning::GetOperationRequest const &, Options)

Gets the latest state of a long-running operation.

Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters
Name	Description
`request`	`google::longrunning::GetOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.GetOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`	the result of the RPC. The response message type (google.longrunning.Operation) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

DeleteOperation(std::string const &, Options)

Deletes a long-running operation.

This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource to be deleted.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DeleteOperation(google::longrunning::DeleteOperationRequest const &, Options)

Deletes a long-running operation.

Parameters
Name	Description
`request`	`google::longrunning::DeleteOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.DeleteOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

CancelOperation(std::string const &, Options)

Starts asynchronous cancellation on a long-running operation.

The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED. Clients can use Operations.GetOperation or other methods to check whether the cancellation succeeded or whether the operation completed despite cancellation. On successful cancellation, the operation is not deleted; instead, it becomes an operation with an Operation.error value with a google.rpc.Status.code of 1, corresponding to Code.CANCELLED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource to be cancelled.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

CancelOperation(google::longrunning::CancelOperationRequest const &, Options)

Starts asynchronous cancellation on a long-running operation.

Parameters
Name	Description
`request`	`google::longrunning::CancelOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.CancelOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.