A client to Cloud Spanner Instance Admin API
The interfaces provided are listed below, along with usage samples.
InstanceAdminClient
Service Description: Cloud Spanner Instance Admin API
The Cloud Spanner Instance Admin API can be used to create, delete, modify and list instances. Instances are dedicated Cloud Spanner serving and storage resources to be used by Cloud Spanner databases.
Each instance has a "configuration", which dictates where the serving resources for the Cloud Spanner instance are located (e.g., US-central, Europe). Configurations are created by Google based on resource availability.
Cloud Spanner billing is based on the instances that exist and their sizes. After an instance exists, there are no additional per-database or per-operation charges for use of the instance (though there may be additional network bandwidth charges). Instances offer isolation: problems with databases in one instance will not affect other instances. However, within an instance databases can affect each other. For example, if one database in an instance receives a lot of requests and consumes most of the instance resources, fewer resources are available for other databases in that instance, and their performance may suffer.
Sample for InstanceAdminClient:
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
try (InstanceAdminClient instanceAdminClient = InstanceAdminClient.create()) {
InstanceConfigName name = InstanceConfigName.of("[PROJECT]", "[INSTANCE_CONFIG]");
InstanceConfig response = instanceAdminClient.getInstanceConfig(name);
}
Classes
InstanceAdminClient
Service Description: Cloud Spanner Instance Admin API
The Cloud Spanner Instance Admin API can be used to create, delete, modify and list instances. Instances are dedicated Cloud Spanner serving and storage resources to be used by Cloud Spanner databases.
Each instance has a "configuration", which dictates where the serving resources for the Cloud Spanner instance are located (e.g., US-central, Europe). Configurations are created by Google based on resource availability.
Cloud Spanner billing is based on the instances that exist and their sizes. After an instance exists, there are no additional per-database or per-operation charges for use of the instance (though there may be additional network bandwidth charges). Instances offer isolation: problems with databases in one instance will not affect other instances. However, within an instance databases can affect each other. For example, if one database in an instance receives a lot of requests and consumes most of the instance resources, fewer resources are available for other databases in that instance, and their performance may suffer.
This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
try (InstanceAdminClient instanceAdminClient = InstanceAdminClient.create()) {
InstanceConfigName name = InstanceConfigName.of("[PROJECT]", "[INSTANCE_CONFIG]");
InstanceConfig response = instanceAdminClient.getInstanceConfig(name);
}
Note: close() needs to be called on the InstanceAdminClient object to clean up resources such as threads. In the example above, try-with-resources is used, which automatically calls close().
Method | Description | Method Variants |
---|---|---|
ListInstanceConfigs | Lists the supported instance configurations for a given project. |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
GetInstanceConfig | Gets information about a particular instance configuration. |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
CreateInstanceConfig | Creates an instance config and begins preparing it to be used. The returned long-running operation can be used to track the progress of preparing the new instance config. The instance config name is assigned by the caller. If the named instance config already exists, Immediately after the request returns: * The instance config is readable via the API, with all requested attributes. The instance config's reconciling field is set to true. Its state is While the operation is pending: * Cancelling the operation renders the instance config immediately unreadable via the API. * Except for deleting the creating resource, all other attempts to modify the instance config are rejected. Upon completion of the returned operation: * Instances can be created using the instance configuration. * The instance config's reconciling field becomes false. Its state becomes The returned long-running operation will have a name of the format Authorization requires |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
Methods that return long-running operations have "Async" method variants that return
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
UpdateInstanceConfig | Updates an instance config. The returned long-running operation can be used to track the progress of updating the instance. If the named instance config does not exist, returns Only user managed configurations can be updated. Immediately after the request returns: * The instance config's reconciling field is set to true. While the operation is pending: * Cancelling the operation sets its metadata's cancel_time. The operation is guaranteed to succeed at undoing all changes, after which point it terminates with a Upon completion of the returned operation: * Creating instances using the instance configuration uses the new values. * The instance config's new values are readable via the API. * The instance config's reconciling field becomes false. The returned long-running operation will have a name of the format Authorization requires |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
Methods that return long-running operations have "Async" method variants that return
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
DeleteInstanceConfig | Deletes the instance config. Deletion is only allowed when no instances are using the configuration. If any instances are using the config, returns Only user managed configurations can be deleted. Authorization requires |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
ListInstanceConfigOperations | Lists the user-managed instance config long-running operations in the given project. An instance config operation has a name of the form |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
ListInstances | Lists all instances in the given project. |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
GetInstance | Gets information about a particular instance. |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
CreateInstance | Creates an instance and begins preparing it to begin serving. The returned long-running 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, Immediately upon completion of this request: * The instance is readable via the API, with all requested attributes but no allocated resources. Its state is 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 API. * The instance's state becomes The returned long-running operation will have a name of the format |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
Methods that return long-running operations have "Async" method variants that return
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
UpdateInstance | Updates an instance, and begins allocating or releasing resources as requested. The returned long-running operation can be used to track the progress of updating the instance. If the named instance does not exist, returns 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 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. The returned long-running operation will have a name of the format Authorization requires |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
Methods that return long-running operations have "Async" method variants that return
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
DeleteInstance | Deletes an instance. Immediately upon completion of the request: * Billing ceases for all of the instance's reserved resources. Soon afterward: * The instance and *all of its databases* immediately and irrevocably disappear from the API. All data in the databases is permanently deleted. |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
SetIamPolicy | Sets the access control policy on an instance resource. Replaces any existing policy. Authorization requires |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
GetIamPolicy | Gets the access control policy for an instance resource. Returns an empty policy if an instance exists but does not have a policy set. Authorization requires |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
TestIamPermissions | Returns permissions that the caller has on the specified instance resource. Attempting this RPC on a non-existent Cloud Spanner instance resource will result in a NOT_FOUND error if the user has |
Request object method variants only take one parameter, a request object, which must be constructed before the call.
"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.
Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
|
See the individual methods for example code.
Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parse method to extract the individual identifiers contained within names that are returned.
This class can be customized by passing in a custom instance of InstanceAdminSettings to create(). For example:
To customize credentials:
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
InstanceAdminSettings instanceAdminSettings =
InstanceAdminSettings.newBuilder()
.setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
.build();
InstanceAdminClient instanceAdminClient = InstanceAdminClient.create(instanceAdminSettings);
To customize the endpoint:
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
InstanceAdminSettings instanceAdminSettings =
InstanceAdminSettings.newBuilder().setEndpoint(myEndpoint).build();
InstanceAdminClient instanceAdminClient = InstanceAdminClient.create(instanceAdminSettings);
To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over the wire:
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
InstanceAdminSettings instanceAdminSettings =
InstanceAdminSettings.newHttpJsonBuilder().build();
InstanceAdminClient instanceAdminClient = InstanceAdminClient.create(instanceAdminSettings);
Please refer to the GitHub repository's samples for more quickstart code snippets.
InstanceAdminClient.ListInstanceConfigOperationsFixedSizeCollection
InstanceAdminClient.ListInstanceConfigOperationsPage
InstanceAdminClient.ListInstanceConfigOperationsPagedResponse
InstanceAdminClient.ListInstanceConfigsFixedSizeCollection
InstanceAdminClient.ListInstanceConfigsPage
InstanceAdminClient.ListInstanceConfigsPagedResponse
InstanceAdminClient.ListInstancesFixedSizeCollection
InstanceAdminClient.ListInstancesPage
InstanceAdminClient.ListInstancesPagedResponse
InstanceAdminSettings
Settings class to configure an instance of InstanceAdminClient.
The default instance has everything set to sensible defaults:
- The default service address (spanner.googleapis.com) and default port (443) are used.
- Credentials are acquired automatically through Application Default Credentials.
- Retries are configured for idempotent methods but not for non-idempotent methods.
The builder of this class is recursive, so contained classes are themselves builders. When build() is called, the tree of builders is called to create the complete settings object.
For example, to set the total timeout of getInstanceConfig to 30 seconds:
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
InstanceAdminSettings.Builder instanceAdminSettingsBuilder = InstanceAdminSettings.newBuilder();
instanceAdminSettingsBuilder
.getInstanceConfigSettings()
.setRetrySettings(
instanceAdminSettingsBuilder
.getInstanceConfigSettings()
.getRetrySettings()
.toBuilder()
.setTotalTimeout(Duration.ofSeconds(30))
.build());
InstanceAdminSettings instanceAdminSettings = instanceAdminSettingsBuilder.build();
InstanceAdminSettings.Builder
Builder for InstanceAdminSettings.