Package com.google.cloud.aiplatform.v1

Class MatchServiceClient

  • All Implemented Interfaces:
    com.google.api.gax.core.BackgroundResource, AutoCloseable
    @Generated("by gapic-generator-java")
public class MatchServiceClient
extends Object
implements com.google.api.gax.core.BackgroundResource
    Service Description: MatchService is a Google managed service for efficient vector similarity search at scale.

    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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   FindNeighborsRequest request =
       FindNeighborsRequest.newBuilder()
           .setIndexEndpoint(
               IndexEndpointName.of("[PROJECT]", "[LOCATION]", "[INDEX_ENDPOINT]").toString())
           .setDeployedIndexId("deployedIndexId-1101212953")
           .addAllQueries(new ArrayList<FindNeighborsRequest.Query>())
           .setReturnFullDatapoint(true)
           .build();
   FindNeighborsResponse response = matchServiceClient.findNeighbors(request);
 }

    Note: close() needs to be called on the MatchServiceClient 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 MatchServiceSettings 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
 MatchServiceSettings matchServiceSettings =
     MatchServiceSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 MatchServiceClient matchServiceClient = MatchServiceClient.create(matchServiceSettings);

    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
 MatchServiceSettings matchServiceSettings =
     MatchServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
 MatchServiceClient matchServiceClient = MatchServiceClient.create(matchServiceSettings);

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

    • Constructor Detail

      • MatchServiceClient

        protected MatchServiceClient​(MatchServiceSettings settings)
                      throws IOException
        Constructs an instance of MatchServiceClient, 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.
        Throws:
        IOException

    • Method Detail

      • create

        public static final MatchServiceClient create​(MatchServiceSettings settings)
                                       throws IOException
        Constructs an instance of MatchServiceClient, using the given settings. The channels are created based on the settings passed in, or defaults for any settings that are not set.
        Throws:
        IOException

      • create

        public static final MatchServiceClient create​(MatchServiceStub stub)
        Constructs an instance of MatchServiceClient, using the given stub for making calls. This is for advanced usage - prefer using create(MatchServiceSettings).

      • findNeighbors

        public final FindNeighborsResponse findNeighbors​(FindNeighborsRequest request)
        Finds the nearest neighbors of each vector within the 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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   FindNeighborsRequest request =
       FindNeighborsRequest.newBuilder()
           .setIndexEndpoint(
               IndexEndpointName.of("[PROJECT]", "[LOCATION]", "[INDEX_ENDPOINT]").toString())
           .setDeployedIndexId("deployedIndexId-1101212953")
           .addAllQueries(new ArrayList<FindNeighborsRequest.Query>())
           .setReturnFullDatapoint(true)
           .build();
   FindNeighborsResponse response = matchServiceClient.findNeighbors(request);
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • findNeighborsCallable

        public final com.google.api.gax.rpc.UnaryCallable<FindNeighborsRequest,​FindNeighborsResponse> findNeighborsCallable()
        Finds the nearest neighbors of each vector within the 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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   FindNeighborsRequest request =
       FindNeighborsRequest.newBuilder()
           .setIndexEndpoint(
               IndexEndpointName.of("[PROJECT]", "[LOCATION]", "[INDEX_ENDPOINT]").toString())
           .setDeployedIndexId("deployedIndexId-1101212953")
           .addAllQueries(new ArrayList<FindNeighborsRequest.Query>())
           .setReturnFullDatapoint(true)
           .build();
   ApiFuture<FindNeighborsResponse> future =
       matchServiceClient.findNeighborsCallable().futureCall(request);
   // Do something.
   FindNeighborsResponse response = future.get();
 }

      • readIndexDatapoints

        public final ReadIndexDatapointsResponse readIndexDatapoints​(ReadIndexDatapointsRequest request)
        Reads the datapoints/vectors of the given IDs. A maximum of 1000 datapoints can be retrieved in a batch.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   ReadIndexDatapointsRequest request =
       ReadIndexDatapointsRequest.newBuilder()
           .setIndexEndpoint(
               IndexEndpointName.of("[PROJECT]", "[LOCATION]", "[INDEX_ENDPOINT]").toString())
           .setDeployedIndexId("deployedIndexId-1101212953")
           .addAllIds(new ArrayList<String>())
           .build();
   ReadIndexDatapointsResponse response = matchServiceClient.readIndexDatapoints(request);
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • readIndexDatapointsCallable

        public final com.google.api.gax.rpc.UnaryCallable<ReadIndexDatapointsRequest,​ReadIndexDatapointsResponse> readIndexDatapointsCallable()
        Reads the datapoints/vectors of the given IDs. A maximum of 1000 datapoints can be retrieved in a batch.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   ReadIndexDatapointsRequest request =
       ReadIndexDatapointsRequest.newBuilder()
           .setIndexEndpoint(
               IndexEndpointName.of("[PROJECT]", "[LOCATION]", "[INDEX_ENDPOINT]").toString())
           .setDeployedIndexId("deployedIndexId-1101212953")
           .addAllIds(new ArrayList<String>())
           .build();
   ApiFuture<ReadIndexDatapointsResponse> future =
       matchServiceClient.readIndexDatapointsCallable().futureCall(request);
   // Do something.
   ReadIndexDatapointsResponse response = future.get();
 }

      • listLocations

        public final MatchServiceClient.ListLocationsPagedResponse listLocations​(com.google.cloud.location.ListLocationsRequest request)
        Lists information about the supported locations for this service.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (Location element : matchServiceClient.listLocations(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • listLocationsPagedCallable

        public final com.google.api.gax.rpc.UnaryCallable<com.google.cloud.location.ListLocationsRequest,​MatchServiceClient.ListLocationsPagedResponse> listLocationsPagedCallable()
        Lists information about the supported locations for this service.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<Location> future =
       matchServiceClient.listLocationsPagedCallable().futureCall(request);
   // Do something.
   for (Location element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

      • listLocationsCallable

        public final com.google.api.gax.rpc.UnaryCallable<com.google.cloud.location.ListLocationsRequest,​com.google.cloud.location.ListLocationsResponse> listLocationsCallable()
        Lists information about the supported locations for this service.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListLocationsResponse response = matchServiceClient.listLocationsCallable().call(request);
     for (Location element : response.getLocationsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

      • getLocation

        public final com.google.cloud.location.Location getLocation​(com.google.cloud.location.GetLocationRequest request)
        Gets information about a location.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
   Location response = matchServiceClient.getLocation(request);
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • getLocationCallable

        public final com.google.api.gax.rpc.UnaryCallable<com.google.cloud.location.GetLocationRequest,​com.google.cloud.location.Location> getLocationCallable()
        Gets information about a location.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
   ApiFuture<Location> future = matchServiceClient.getLocationCallable().futureCall(request);
   // Do something.
   Location response = future.get();
 }

      • setIamPolicy

        public final com.google.iam.v1.Policy setIamPolicy​(com.google.iam.v1.SetIamPolicyRequest request)
        Sets the access control policy on the specified resource. Replacesany existing policy.

        Can return `NOT_FOUND`, `INVALID_ARGUMENT`, and `PERMISSION_DENIED`errors.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   SetIamPolicyRequest request =
       SetIamPolicyRequest.newBuilder()
           .setResource(
               EndpointName.ofProjectLocationEndpointName(
                       "[PROJECT]", "[LOCATION]", "[ENDPOINT]")
                   .toString())
           .setPolicy(Policy.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Policy response = matchServiceClient.setIamPolicy(request);
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • setIamPolicyCallable

        public final com.google.api.gax.rpc.UnaryCallable<com.google.iam.v1.SetIamPolicyRequest,​com.google.iam.v1.Policy> setIamPolicyCallable()
        Sets the access control policy on the specified resource. Replacesany existing policy.

        Can return `NOT_FOUND`, `INVALID_ARGUMENT`, and `PERMISSION_DENIED`errors.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   SetIamPolicyRequest request =
       SetIamPolicyRequest.newBuilder()
           .setResource(
               EndpointName.ofProjectLocationEndpointName(
                       "[PROJECT]", "[LOCATION]", "[ENDPOINT]")
                   .toString())
           .setPolicy(Policy.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Policy> future = matchServiceClient.setIamPolicyCallable().futureCall(request);
   // Do something.
   Policy response = future.get();
 }

      • getIamPolicy

        public final com.google.iam.v1.Policy getIamPolicy​(com.google.iam.v1.GetIamPolicyRequest request)
        Gets the access control policy for a resource. Returns an empty policyif the resource exists and does not have a policy set.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   GetIamPolicyRequest request =
       GetIamPolicyRequest.newBuilder()
           .setResource(
               EndpointName.ofProjectLocationEndpointName(
                       "[PROJECT]", "[LOCATION]", "[ENDPOINT]")
                   .toString())
           .setOptions(GetPolicyOptions.newBuilder().build())
           .build();
   Policy response = matchServiceClient.getIamPolicy(request);
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • getIamPolicyCallable

        public final com.google.api.gax.rpc.UnaryCallable<com.google.iam.v1.GetIamPolicyRequest,​com.google.iam.v1.Policy> getIamPolicyCallable()
        Gets the access control policy for a resource. Returns an empty policyif the resource exists and does not have a policy set.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   GetIamPolicyRequest request =
       GetIamPolicyRequest.newBuilder()
           .setResource(
               EndpointName.ofProjectLocationEndpointName(
                       "[PROJECT]", "[LOCATION]", "[ENDPOINT]")
                   .toString())
           .setOptions(GetPolicyOptions.newBuilder().build())
           .build();
   ApiFuture<Policy> future = matchServiceClient.getIamPolicyCallable().futureCall(request);
   // Do something.
   Policy response = future.get();
 }

      • testIamPermissions

        public final com.google.iam.v1.TestIamPermissionsResponse testIamPermissions​(com.google.iam.v1.TestIamPermissionsRequest request)
        Returns permissions that a caller has on the specified resource. If theresource does not exist, this will return an empty set ofpermissions, not a `NOT_FOUND` error.

        Note: This operation is designed to be used for buildingpermission-aware UIs and command-line tools, not for authorizationchecking. This operation may "fail open" without warning.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   TestIamPermissionsRequest request =
       TestIamPermissionsRequest.newBuilder()
           .setResource(
               EndpointName.ofProjectLocationEndpointName(
                       "[PROJECT]", "[LOCATION]", "[ENDPOINT]")
                   .toString())
           .addAllPermissions(new ArrayList<String>())
           .build();
   TestIamPermissionsResponse response = matchServiceClient.testIamPermissions(request);
 }
        Parameters:
        request - The request object containing all of the parameters for the API call.
        Throws:
        com.google.api.gax.rpc.ApiException - if the remote call fails

      • testIamPermissionsCallable

        public final com.google.api.gax.rpc.UnaryCallable<com.google.iam.v1.TestIamPermissionsRequest,​com.google.iam.v1.TestIamPermissionsResponse> testIamPermissionsCallable()
        Returns permissions that a caller has on the specified resource. If theresource does not exist, this will return an empty set ofpermissions, not a `NOT_FOUND` error.

        Note: This operation is designed to be used for buildingpermission-aware UIs and command-line tools, not for authorizationchecking. This operation may "fail open" without warning.

        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 (MatchServiceClient matchServiceClient = MatchServiceClient.create()) {
   TestIamPermissionsRequest request =
       TestIamPermissionsRequest.newBuilder()
           .setResource(
               EndpointName.ofProjectLocationEndpointName(
                       "[PROJECT]", "[LOCATION]", "[ENDPOINT]")
                   .toString())
           .addAllPermissions(new ArrayList<String>())
           .build();
   ApiFuture<TestIamPermissionsResponse> future =
       matchServiceClient.testIamPermissionsCallable().futureCall(request);
   // Do something.
   TestIamPermissionsResponse response = future.get();
 }

      • shutdown

        public void shutdown()
        Specified by:
        shutdown in interface com.google.api.gax.core.BackgroundResource

      • isShutdown

        public boolean isShutdown()
        Specified by:
        isShutdown in interface com.google.api.gax.core.BackgroundResource

      • isTerminated

        public boolean isTerminated()
        Specified by:
        isTerminated in interface com.google.api.gax.core.BackgroundResource

      • shutdownNow

        public void shutdownNow()
        Specified by:
        shutdownNow in interface com.google.api.gax.core.BackgroundResource