Interface InstanceAdminClient

public interface InstanceAdminClient

Client to do admin operations on Cloud Spanner Instance and Instance Configs.

Methods

cancelOperation(String name)

public abstract void cancelOperation(String name)

Cancels the specified long-running operation.

Parameter

Name	Description
name	`String`

createInstance(InstanceInfo instance)

public abstract OperationFuture<Instance,CreateInstanceMetadata> createInstance(InstanceInfo instance)

Creates an instance and begins preparing it to begin serving. The returned Operation can be used to track the progress of preparing the new instance. The instance name is assigned by the caller. If the named instance already exists, a SpannerException is thrown. Immediately upon completion of this request:

The instance is readable via the API, with all requested attributes but no allocated resources.
Its state is CREATING.

Until completion of the returned operation:

Cancelling the operation renders the instance immediately unreadable via the API.
The instance can be deleted.
All other attempts to modify the instance are rejected.

Upon completion of the returned operation:

Billing for all successfully-allocated resources begins (some types may have lower than the requested levels).
Databases can be created in the instance.
The instance's allocated resource levels are readable via the


 final String instanceId = my_instance_id;
 final String configId = my_config_id;
 final String clientProject = my_client_project;

 Operation<Instance, CreateInstanceMetadata> op =
     instanceAdminClient.createInstance(InstanceInfo
         .newBuilder(InstanceId.of(clientProject, instanceId))
         .setInstanceConfigId(InstanceConfigId.of(clientProject, configId))
         .setDisplayName(instanceId)
         .setNodeCount(1)
         .build());
 op.waitFor();

Parameter

Name	Description
instance	`InstanceInfo`

Returns

Type	Description
OperationFuture<Instance,CreateInstanceMetadata>

Exceptions

Type	Description
SpannerException

deleteInstance(String instanceId)

public abstract void deleteInstance(String instanceId)

Deletes an instance.

Parameter

Name	Description
instanceId	`String`

Exceptions

Type	Description
SpannerException

getInstance(String instanceId)

public abstract Instance getInstance(String instanceId)

Gets an instance.

Parameter

Name	Description
instanceId	`String`

Returns

Type	Description
Instance

Exceptions

Type	Description
SpannerException

getInstanceConfig(String configId)

public abstract InstanceConfig getInstanceConfig(String configId)

Gets an instance config.

Parameter

Name	Description
configId	`String`

Returns

Type	Description
InstanceConfig

Exceptions

Type	Description
SpannerException

getInstanceIAMPolicy(String instanceId)

public abstract Policy getInstanceIAMPolicy(String instanceId)

Returns the IAM policy for the given instance.

Parameter

Name	Description
instanceId	`String`

Returns

Type	Description
com.google.cloud.Policy

getOperation(String name)

public abstract Operation getOperation(String name)

Gets the specified long-running operation.

Parameter

Name	Description
name	`String`

Returns

Type	Description
Operation

listInstanceConfigs(Options.ListOption[] options)

public abstract Page<InstanceConfig> listInstanceConfigs(Options.ListOption[] options)

Lists the supported instance configs for current project.

Parameter

Name	Description
options	`ListOption[]`

Returns

Type	Description
Page<InstanceConfig>

Exceptions

Type	Description
SpannerException

listInstances(Options.ListOption[] options)

public abstract Page<Instance> listInstances(Options.ListOption[] options)

Lists the instances.

Parameter

Name Description

options

ListOption[]

Options to control the instances returned. It also supports Options#filter(String) option. The fields eligible for filtering are:

name
display_name
labels.key where key is the name of a label


 List<Instance> instances =
     Lists.newArrayList(
         instanceAdminClient.listInstances(Options.pageSize(1)).iterateAll());

 <!--SNIPPET instance_admin_client_list_instances-->

Returns

Type	Description
Page<Instance>

Exceptions

Type	Description
SpannerException

newInstanceBuilder(InstanceId id)

public abstract Instance.Builder newInstanceBuilder(InstanceId id)

Returns a builder for Instance object with the given id.

Parameter

Name	Description
id	`InstanceId`

Returns

Type	Description
Instance.Builder

setInstanceIAMPolicy(String instanceId, Policy policy)

public abstract Policy setInstanceIAMPolicy(String instanceId, Policy policy)

Updates the IAM policy for the given instance and returns the resulting policy. It is highly recommended to first get the current policy and base the updated policy on the returned policy. See Policy.Builder#setEtag(String) for information on the recommended read-modify-write cycle.

Parameters

Name	Description
instanceId	`String`
policy	`com.google.cloud.Policy`

Returns

Type	Description
com.google.cloud.Policy

testInstanceIAMPermissions(String instanceId, Iterable<String> permissions)

public abstract Iterable<String> testInstanceIAMPermissions(String instanceId, Iterable<String> permissions)

Tests for the given permissions on the specified instance for the caller.

Parameters

Name	Description
instanceId	`String` the id of the instance to test.
permissions	`Iterable<String>` the permissions to test for. Permissions with wildcards (such as '', 'spanner.', 'spanner.instances.*') are not allowed.

Returns

Type	Description
Iterable<String>	the subset of the tested permissions that the caller is allowed.

updateInstance(InstanceInfo instance, InstanceInfo.InstanceField[] fieldsToUpdate)

public abstract OperationFuture<Instance,UpdateInstanceMetadata> updateInstance(InstanceInfo instance, InstanceInfo.InstanceField[] fieldsToUpdate)

Updates an instance, and begins allocating or releasing resources as requested. The returned Operation can be used to track the progress of updating the instance. If the named instance does not exist, throws SpannerException.

Immediately upon completion of this request:

For resource types for which a decrease in the instance's allocation has been requested, billing is based on the newly-requested level.

Until completion of the returned operation:

Cancelling the operation sets its metadata's cancel_time, and begins restoring resources to their pre-request values. The operation is guaranteed to succeed at undoing all resource changes, after which point it terminates with a CANCELLED status.
All other attempts to modify the instance are rejected.
Reading the instance via the API continues to give the pre-request resource levels.

Upon completion of the returned operation:

Billing begins for all successfully-allocated resources (some types may have lower than the requested levels).
All newly-reserved resources are available for serving the instance's tables.
The instance's new resource levels are readable via the API.


 Instance instance = my_instance;
 final String clientProject = my_client_project;
 final String instanceId = my_instance_id;

 final String newDisplayName = my_display_name;

 InstanceInfo toUpdate =
     InstanceInfo.newBuilder(InstanceId.of(clientProject, instanceId))
         .setDisplayName(newDisplayName)
         .setNodeCount(instance.getNodeCount() + 1)
         .build();
 // Only update display name
 Operation<Instance, UpdateInstanceMetadata> op =
     instanceAdminClient.updateInstance(toUpdate, InstanceInfo.InstanceField.DISPLAY_NAME);
 op.waitFor().getResult();

Parameters

Name	Description
instance	`InstanceInfo`
fieldsToUpdate	`InstanceField[]`

Returns

Type	Description
OperationFuture<Instance,UpdateInstanceMetadata>