Class IndexServiceClient (2.5.3)

Version 2.5.3

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public class IndexServiceClient implements BackgroundResource

Service Description: A service for creating and managing Vertex AI's Index resources.

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:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   IndexName name = IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]");
   Index response = indexServiceClient.getIndex(name);
 }
 

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

The surface of this class includes several types of Java methods for each of the API's methods:

1. A "flattened" method. With this type of method, the fields of the request type have been converted into function parameters. It may be the case that not all fields are available as parameters, and not every API method will have a flattened method entry point.
2. A "request object" method. This type of method only takes one parameter, a request object, which must be constructed before the call. Not every API method will have a request object method.
3. A "callable" method. This type of method takes no parameters and returns 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 IndexServiceSettings to create(). For example:

To customize credentials:

 IndexServiceSettings indexServiceSettings =
     IndexServiceSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 IndexServiceClient indexServiceClient = IndexServiceClient.create(indexServiceSettings);
 

To customize the endpoint:

 IndexServiceSettings indexServiceSettings =
     IndexServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
 IndexServiceClient indexServiceClient = IndexServiceClient.create(indexServiceSettings);
 

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

Inheritance

java.lang.Object > IndexServiceClient

Implements

BackgroundResource

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Constructors

IndexServiceClient(IndexServiceSettings settings)

protected IndexServiceClient(IndexServiceSettings settings)

Constructs an instance of IndexServiceClient, 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	IndexServiceSettings

IndexServiceClient(IndexServiceStub stub)

protected IndexServiceClient(IndexServiceStub stub)

Parameter

Name	Description
stub	IndexServiceStub

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()

create()

public static final IndexServiceClient create()

Constructs an instance of IndexServiceClient with default settings.

Returns

Type	Description
IndexServiceClient

Exceptions

Type	Description
IOException

create(IndexServiceSettings settings)

public static final IndexServiceClient create(IndexServiceSettings settings)

Constructs an instance of IndexServiceClient, 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	IndexServiceSettings

Returns

Type	Description
IndexServiceClient

Exceptions

Type	Description
IOException

create(IndexServiceStub stub)

public static final IndexServiceClient create(IndexServiceStub stub)

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

Parameter

Name	Description
stub	IndexServiceStub

Returns

Type	Description
IndexServiceClient

createIndexAsync(CreateIndexRequest request)

public final OperationFuture<Index,CreateIndexOperationMetadata> createIndexAsync(CreateIndexRequest request)

Creates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   CreateIndexRequest request =
       CreateIndexRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setIndex(Index.newBuilder().build())
           .build();
   Index response = indexServiceClient.createIndexAsync(request).get();
 }
 

Parameter

Name	Description
request	CreateIndexRequest The request object containing all of the parameters for the API call.

Returns

Type	Description
OperationFuture<Index,CreateIndexOperationMetadata>

createIndexAsync(LocationName parent, Index index)

public final OperationFuture<Index,CreateIndexOperationMetadata> createIndexAsync(LocationName parent, Index index)

Creates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
   Index index = Index.newBuilder().build();
   Index response = indexServiceClient.createIndexAsync(parent, index).get();
 }
 

Parameters

Name	Description
parent	LocationName Required. The resource name of the Location to create the Index in. Format: projects/{project}/locations/{location}
index	Index Required. The Index to create.

Returns

Type	Description
OperationFuture<Index,CreateIndexOperationMetadata>

createIndexAsync(String parent, Index index)

public final OperationFuture<Index,CreateIndexOperationMetadata> createIndexAsync(String parent, Index index)

Creates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
   Index index = Index.newBuilder().build();
   Index response = indexServiceClient.createIndexAsync(parent, index).get();
 }
 

Parameters

Name	Description
parent	String Required. The resource name of the Location to create the Index in. Format: projects/{project}/locations/{location}
index	Index Required. The Index to create.

Returns

Type	Description
OperationFuture<Index,CreateIndexOperationMetadata>

createIndexCallable()

public final UnaryCallable<CreateIndexRequest,Operation> createIndexCallable()

Creates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   CreateIndexRequest request =
       CreateIndexRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setIndex(Index.newBuilder().build())
           .build();
   ApiFuture<Operation> future = indexServiceClient.createIndexCallable().futureCall(request);
   // Do something.
   Operation response = future.get();
 }
 

Returns

Type	Description
UnaryCallable<CreateIndexRequest,Operation>

createIndexOperationCallable()

public final OperationCallable<CreateIndexRequest,Index,CreateIndexOperationMetadata> createIndexOperationCallable()

Creates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   CreateIndexRequest request =
       CreateIndexRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setIndex(Index.newBuilder().build())
           .build();
   OperationFuture

Returns

Type	Description
OperationCallable<CreateIndexRequest,Index,CreateIndexOperationMetadata>

deleteIndexAsync(DeleteIndexRequest request)

public final OperationFuture<Empty,DeleteOperationMetadata> deleteIndexAsync(DeleteIndexRequest request)

Deletes an Index. An Index can only be deleted when all its DeployedIndexes had been undeployed.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   DeleteIndexRequest request =
       DeleteIndexRequest.newBuilder()
           .setName(IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString())
           .build();
   indexServiceClient.deleteIndexAsync(request).get();
 }
 

Parameter

Name	Description
request	DeleteIndexRequest The request object containing all of the parameters for the API call.

Returns

Type	Description
OperationFuture<Empty,DeleteOperationMetadata>

deleteIndexAsync(IndexName name)

public final OperationFuture<Empty,DeleteOperationMetadata> deleteIndexAsync(IndexName name)

Deletes an Index. An Index can only be deleted when all its DeployedIndexes had been undeployed.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   IndexName name = IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]");
   indexServiceClient.deleteIndexAsync(name).get();
 }
 

Parameter

Name	Description
name	IndexName Required. The name of the Index resource to be deleted. Format: projects/{project}/locations/{location}/indexes/{index}

Returns

Type	Description
OperationFuture<Empty,DeleteOperationMetadata>

deleteIndexAsync(String name)

public final OperationFuture<Empty,DeleteOperationMetadata> deleteIndexAsync(String name)

Deletes an Index. An Index can only be deleted when all its DeployedIndexes had been undeployed.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   String name = IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString();
   indexServiceClient.deleteIndexAsync(name).get();
 }
 

Parameter

Name	Description
name	String Required. The name of the Index resource to be deleted. Format: projects/{project}/locations/{location}/indexes/{index}

Returns

Type	Description
OperationFuture<Empty,DeleteOperationMetadata>

deleteIndexCallable()

public final UnaryCallable<DeleteIndexRequest,Operation> deleteIndexCallable()

Deletes an Index. An Index can only be deleted when all its DeployedIndexes had been undeployed.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   DeleteIndexRequest request =
       DeleteIndexRequest.newBuilder()
           .setName(IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString())
           .build();
   ApiFuture<Operation> future = indexServiceClient.deleteIndexCallable().futureCall(request);
   // Do something.
   future.get();
 }
 

Returns

Type	Description
UnaryCallable<DeleteIndexRequest,Operation>

deleteIndexOperationCallable()

public final OperationCallable<DeleteIndexRequest,Empty,DeleteOperationMetadata> deleteIndexOperationCallable()

Deletes an Index. An Index can only be deleted when all its DeployedIndexes had been undeployed.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   DeleteIndexRequest request =
       DeleteIndexRequest.newBuilder()
           .setName(IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString())
           .build();
   OperationFuture

Returns

Type	Description
OperationCallable<DeleteIndexRequest,Empty,DeleteOperationMetadata>

getIndex(GetIndexRequest request)

public final Index getIndex(GetIndexRequest request)

Gets an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   GetIndexRequest request =
       GetIndexRequest.newBuilder()
           .setName(IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString())
           .build();
   Index response = indexServiceClient.getIndex(request);
 }
 

Parameter

Name	Description
request	GetIndexRequest The request object containing all of the parameters for the API call.

Returns

Type	Description
Index

getIndex(IndexName name)

public final Index getIndex(IndexName name)

Gets an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   IndexName name = IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]");
   Index response = indexServiceClient.getIndex(name);
 }
 

Parameter

Name	Description
name	IndexName Required. The name of the Index resource. Format: projects/{project}/locations/{location}/indexes/{index}

Returns

Type	Description
Index

getIndex(String name)

public final Index getIndex(String name)

Gets an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   String name = IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString();
   Index response = indexServiceClient.getIndex(name);
 }
 

Parameter

Name	Description
name	String Required. The name of the Index resource. Format: projects/{project}/locations/{location}/indexes/{index}

Returns

Type	Description
Index

getIndexCallable()

public final UnaryCallable<GetIndexRequest,Index> getIndexCallable()

Gets an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   GetIndexRequest request =
       GetIndexRequest.newBuilder()
           .setName(IndexName.of("[PROJECT]", "[LOCATION]", "[INDEX]").toString())
           .build();
   ApiFuture<Index> future = indexServiceClient.getIndexCallable().futureCall(request);
   // Do something.
   Index response = future.get();
 }
 

Returns

Type	Description
UnaryCallable<GetIndexRequest,Index>

getOperationsClient()

public final OperationsClient getOperationsClient()

Returns the OperationsClient that can be used to query the status of a long-running operation returned by another API method call.

Returns

Type	Description
OperationsClient

getSettings()

public final IndexServiceSettings getSettings()

Returns

Type	Description
IndexServiceSettings

getStub()

public IndexServiceStub getStub()

Returns

Type	Description
IndexServiceStub

isShutdown()

public boolean isShutdown()

Returns

Type	Description
boolean

isTerminated()

public boolean isTerminated()

Returns

Type	Description
boolean

listIndexes(ListIndexesRequest request)

public final IndexServiceClient.ListIndexesPagedResponse listIndexes(ListIndexesRequest request)

Lists Indexes in a Location.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   ListIndexesRequest request =
       ListIndexesRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   for (Index element : indexServiceClient.listIndexes(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

Parameter

Name	Description
request	ListIndexesRequest The request object containing all of the parameters for the API call.

Returns

Type	Description
IndexServiceClient.ListIndexesPagedResponse

listIndexes(LocationName parent)

public final IndexServiceClient.ListIndexesPagedResponse listIndexes(LocationName parent)

Lists Indexes in a Location.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
   for (Index element : indexServiceClient.listIndexes(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

Parameter

Name	Description
parent	LocationName Required. The resource name of the Location from which to list the Indexes. Format: projects/{project}/locations/{location}

Returns

Type	Description
IndexServiceClient.ListIndexesPagedResponse

listIndexes(String parent)

public final IndexServiceClient.ListIndexesPagedResponse listIndexes(String parent)

Lists Indexes in a Location.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
   for (Index element : indexServiceClient.listIndexes(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

Parameter

Name	Description
parent	String Required. The resource name of the Location from which to list the Indexes. Format: projects/{project}/locations/{location}

Returns

Type	Description
IndexServiceClient.ListIndexesPagedResponse

listIndexesCallable()

public final UnaryCallable<ListIndexesRequest,ListIndexesResponse> listIndexesCallable()

Lists Indexes in a Location.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   ListIndexesRequest request =
       ListIndexesRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   while (true) {
     ListIndexesResponse response = indexServiceClient.listIndexesCallable().call(request);
     for (Index element : response.getResponsesList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
 

Returns

Type	Description
UnaryCallable<ListIndexesRequest,ListIndexesResponse>

listIndexesPagedCallable()

public final UnaryCallable<ListIndexesRequest,IndexServiceClient.ListIndexesPagedResponse> listIndexesPagedCallable()

Lists Indexes in a Location.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   ListIndexesRequest request =
       ListIndexesRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Index> future = indexServiceClient.listIndexesPagedCallable().futureCall(request);
   // Do something.
   for (Index element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
 

Returns

Type	Description
UnaryCallable<ListIndexesRequest,ListIndexesPagedResponse>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()

updateIndexAsync(Index index, FieldMask updateMask)

public final OperationFuture<Index,UpdateIndexOperationMetadata> updateIndexAsync(Index index, FieldMask updateMask)

Updates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   Index index = Index.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   Index response = indexServiceClient.updateIndexAsync(index, updateMask).get();
 }
 

Parameters

Name	Description
index	Index Required. The Index which updates the resource on the server.
updateMask	FieldMask The update mask applies to the resource. For the FieldMask definition, see google.protobuf.FieldMask.

Returns

Type	Description
OperationFuture<Index,UpdateIndexOperationMetadata>

updateIndexAsync(UpdateIndexRequest request)

public final OperationFuture<Index,UpdateIndexOperationMetadata> updateIndexAsync(UpdateIndexRequest request)

Updates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   UpdateIndexRequest request =
       UpdateIndexRequest.newBuilder()
           .setIndex(Index.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Index response = indexServiceClient.updateIndexAsync(request).get();
 }
 

Parameter

Name	Description
request	UpdateIndexRequest The request object containing all of the parameters for the API call.

Returns

Type	Description
OperationFuture<Index,UpdateIndexOperationMetadata>

updateIndexCallable()

public final UnaryCallable<UpdateIndexRequest,Operation> updateIndexCallable()

Updates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   UpdateIndexRequest request =
       UpdateIndexRequest.newBuilder()
           .setIndex(Index.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Operation> future = indexServiceClient.updateIndexCallable().futureCall(request);
   // Do something.
   Operation response = future.get();
 }
 

Returns

Type	Description
UnaryCallable<UpdateIndexRequest,Operation>

updateIndexOperationCallable()

public final OperationCallable<UpdateIndexRequest,Index,UpdateIndexOperationMetadata> updateIndexOperationCallable()

Updates an Index.

Sample code:

 try (IndexServiceClient indexServiceClient = IndexServiceClient.create()) {
   UpdateIndexRequest request =
       UpdateIndexRequest.newBuilder()
           .setIndex(Index.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   OperationFuture

Returns

Type	Description
OperationCallable<UpdateIndexRequest,Index,UpdateIndexOperationMetadata>