software.amazon.awssdk.services.rekognition.paginators

Class GetFaceDetectionPublisher

java.lang.Object

software.amazon.awssdk.services.rekognition.paginators.GetFaceDetectionPublisher

All Implemented Interfaces:

org.reactivestreams.Publisher<GetFaceDetectionResponse>, SdkPublisher<GetFaceDetectionResponse>

@Generated(value="software.amazon.awssdk:codegen")
public class GetFaceDetectionPublisher
extends Object
implements SdkPublisher<GetFaceDetectionResponse>

Represents the output for the RekognitionAsyncClient.getFaceDetectionPaginator(software.amazon.awssdk.services.rekognition.model.GetFaceDetectionRequest) operation which is a paginated operation. This class is a type of Publisher which can be used to provide a sequence of GetFaceDetectionResponse response pages as per demand from the subscriber.

When the operation is called, an instance of this class is returned. At this point, no service calls are made yet and so there is no guarantee that the request is valid. If there are errors in your request, you will see the failures only after you start streaming the data. The subscribe method should be called as a request to start streaming data. For more info, see Publisher.subscribe(org.reactivestreams.Subscriber). Each call to the subscribe method will result in a new Subscription i.e., a new contract to stream data from the starting request.

The following are few ways to use the response class:

1) Using the subscribe helper method

 
 software.amazon.awssdk.services.rekognition.paginators.GetFaceDetectionPublisher publisher = client.getFaceDetectionPaginator(request);
 CompletableFuture<Void> future = publisher.subscribe(res -> { // Do something with the response });
 future.get();
 
 

2) Using a custom subscriber

 
 software.amazon.awssdk.services.rekognition.paginators.GetFaceDetectionPublisher publisher = client.getFaceDetectionPaginator(request);
 publisher.subscribe(new Subscriber<software.amazon.awssdk.services.rekognition.model.GetFaceDetectionResponse>() {
 
 public void onSubscribe(org.reactivestreams.Subscriber subscription) { //... };
 
 
 public void onNext(software.amazon.awssdk.services.rekognition.model.GetFaceDetectionResponse response) { //... };
 });
 

As the response is a publisher, it can work well with third party reactive streams implementations like RxJava2.

Note: If you prefer to have control on service calls, use the #getFaceDetection(software.amazon.awssdk.services.rekognition.model.GetFaceDetectionRequest) operation.

Constructor Summary

Constructors

Constructor and Description
GetFaceDetectionPublisher(RekognitionAsyncClient client, GetFaceDetectionRequest firstRequest)

Method Summary

Modifier and Type	Method and Description
void	subscribe(org.reactivestreams.Subscriber<? super GetFaceDetectionResponse> subscriber)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface software.amazon.awssdk.core.async.SdkPublisher

adapt, buffer, filter, filter, flatMapIterable, limit, map, subscribe

Constructor Detail

GetFaceDetectionPublisher

public GetFaceDetectionPublisher(RekognitionAsyncClient client,
                                 GetFaceDetectionRequest firstRequest)

Method Detail

subscribe

public void subscribe(org.reactivestreams.Subscriber<? super GetFaceDetectionResponse> subscriber)

Specified by:

subscribe in interface org.reactivestreams.Publisher<GetFaceDetectionResponse>