Class RegionsClient (1.55.0)

GitHub RepositoryProduct Reference

Service Description: The Regions API.

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 (RegionsClient regionsClient = RegionsClient.create()) {
   String project = "project-309310695";
   String region = "region-934795532";
   Region response = regionsClient.get(project, region);
 }

Note: close() needs to be called on the RegionsClient object to clean up resources such as threads. In the example above, try-with-resources is used, which automatically calls close().

Methods
Method Description Method Variants

Get

Returns the specified Region resource. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • get(GetRegionRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • get(String project, String region)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • getCallable()

List

Retrieves the list of region resources available to the specified project. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the items.quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • list(ListRegionsRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • list(String project)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • listPagedCallable()

  • listCallable()

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 RegionsSettings 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
 RegionsSettings regionsSettings =
     RegionsSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 RegionsClient regionsClient = RegionsClient.create(regionsSettings);

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
 RegionsSettings regionsSettings = RegionsSettings.newBuilder().setEndpoint(myEndpoint).build();
 RegionsClient regionsClient = RegionsClient.create(regionsSettings);

Please refer to the GitHub repository's samples for more quickstart code snippets.

Inheritance

java.lang.Object > RegionsClient

Static Methods

create()

public static final RegionsClient create()

Constructs an instance of RegionsClient with default settings.

Returns
Type Description
RegionsClient
Exceptions
Type Description
IOException

create(RegionsSettings settings)

public static final RegionsClient create(RegionsSettings settings)

Constructs an instance of RegionsClient, using the given settings. The channels are created based on the settings passed in, or defaults for any settings that are not set.

Parameter
Name Description
settings RegionsSettings
Returns
Type Description
RegionsClient
Exceptions
Type Description
IOException

create(RegionsStub stub)

public static final RegionsClient create(RegionsStub stub)

Constructs an instance of RegionsClient, using the given stub for making calls. This is for advanced usage - prefer using create(RegionsSettings).

Parameter
Name Description
stub RegionsStub
Returns
Type Description
RegionsClient

Constructors

RegionsClient(RegionsSettings settings)

protected RegionsClient(RegionsSettings settings)

Constructs an instance of RegionsClient, using the given settings. This is protected so that it is easy to make a subclass, but otherwise, the static factory methods should be preferred.

Parameter
Name Description
settings RegionsSettings

RegionsClient(RegionsStub stub)

protected RegionsClient(RegionsStub stub)
Parameter
Name Description
stub RegionsStub

Methods

awaitTermination(long duration, TimeUnit unit)

public boolean awaitTermination(long duration, TimeUnit unit)
Parameters
Name Description
duration long
unit TimeUnit
Returns
Type Description
boolean
Exceptions
Type Description
InterruptedException

close()

public final void close()

get(GetRegionRequest request)

public final Region get(GetRegionRequest request)

Returns the specified Region resource. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   GetRegionRequest request =
       GetRegionRequest.newBuilder()
           .setProject("project-309310695")
           .setRegion("region-934795532")
           .build();
   Region response = regionsClient.get(request);
 }
Parameter
Name Description
request GetRegionRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Region

get(String project, String region)

public final Region get(String project, String region)

Returns the specified Region resource. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   String project = "project-309310695";
   String region = "region-934795532";
   Region response = regionsClient.get(project, region);
 }
Parameters
Name Description
project String

Project ID for this request.
region String

Name of the region resource to return.
Returns
Type Description
Region

getCallable()

public final UnaryCallable<GetRegionRequest,Region> getCallable()

Returns the specified Region resource. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   GetRegionRequest request =
       GetRegionRequest.newBuilder()
           .setProject("project-309310695")
           .setRegion("region-934795532")
           .build();
   ApiFuture<Region> future = regionsClient.getCallable().futureCall(request);
   // Do something.
   Region response = future.get();
 }
Returns
Type Description
UnaryCallable<GetRegionRequest,Region>

getSettings()

public final RegionsSettings getSettings()
Returns
Type Description
RegionsSettings

getStub()

public RegionsStub getStub()
Returns
Type Description
RegionsStub

isShutdown()

public boolean isShutdown()
Returns
Type Description
boolean

isTerminated()

public boolean isTerminated()
Returns
Type Description
boolean

list(ListRegionsRequest request)

public final RegionsClient.ListPagedResponse list(ListRegionsRequest request)

Retrieves the list of region resources available to the specified project. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the items.quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   ListRegionsRequest request =
       ListRegionsRequest.newBuilder()
           .setFilter("filter-1274492040")
           .setMaxResults(1128457243)
           .setOrderBy("orderBy-1207110587")
           .setPageToken("pageToken873572522")
           .setProject("project-309310695")
           .setReturnPartialSuccess(true)
           .build();
   for (Region element : regionsClient.list(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
request ListRegionsRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
RegionsClient.ListPagedResponse

list(String project)

public final RegionsClient.ListPagedResponse list(String project)

Retrieves the list of region resources available to the specified project. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the items.quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   String project = "project-309310695";
   for (Region element : regionsClient.list(project).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
project String

Project ID for this request.
Returns
Type Description
RegionsClient.ListPagedResponse

listCallable()

public final UnaryCallable<ListRegionsRequest,RegionList> listCallable()

Retrieves the list of region resources available to the specified project. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the items.quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   ListRegionsRequest request =
       ListRegionsRequest.newBuilder()
           .setFilter("filter-1274492040")
           .setMaxResults(1128457243)
           .setOrderBy("orderBy-1207110587")
           .setPageToken("pageToken873572522")
           .setProject("project-309310695")
           .setReturnPartialSuccess(true)
           .build();
   while (true) {
     RegionList response = regionsClient.listCallable().call(request);
     for (Region element : response.getItemsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
Returns
Type Description
UnaryCallable<ListRegionsRequest,RegionList>

listPagedCallable()

public final UnaryCallable<ListRegionsRequest,RegionsClient.ListPagedResponse> listPagedCallable()

Retrieves the list of region resources available to the specified project. To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the items.quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

Sample code:


 // 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 (RegionsClient regionsClient = RegionsClient.create()) {
   ListRegionsRequest request =
       ListRegionsRequest.newBuilder()
           .setFilter("filter-1274492040")
           .setMaxResults(1128457243)
           .setOrderBy("orderBy-1207110587")
           .setPageToken("pageToken873572522")
           .setProject("project-309310695")
           .setReturnPartialSuccess(true)
           .build();
   ApiFuture<Region> future = regionsClient.listPagedCallable().futureCall(request);
   // Do something.
   for (Region element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
Returns
Type Description
UnaryCallable<ListRegionsRequest,ListPagedResponse>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()