software.amazon.awssdk.enhanced.dynamodb.model

Interface PagePublisher<T>

Type Parameters:

T - The modelled type of the object in a page.

All Superinterfaces:

org.reactivestreams.Publisher<Page<T>>, SdkPublisher<Page<T>>

@ThreadSafe
public interface PagePublisher<T>
extends SdkPublisher<Page<T>>

Represents the result from paginated operations such as scan and query.

You can either subscribe to the Pages or flattened items across all pages via items(). Example:

1) Subscribing to Pages

 

 PagePublisher<MyItem> publisher = mappedTable.scan();
 publisher.subscribe(page -> page.items().forEach(item -> System.out.println(item)))
          .exceptionally(failure -> {
              failure.printStackTrace();
              return null;
          });
 
 

2) Subscribing to items across all pages.

 

 PagePublisher<MyItem> publisher = mappedTable.scan();
 publisher.items()
          .subscribe(item -> System.out.println(item))
          .exceptionally(failure -> {
              failure.printStackTrace();
              return null;
          });
 
 

Method Summary

Modifier and Type	Method and Description
static <T> PagePublisher<T>	create(SdkPublisher<Page<T>> publisher) Creates a flattened items publisher with the underlying page publisher.
default SdkPublisher<T>	items() Returns a publisher that can be used to request a stream of items across all pages.

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

adapt, buffer, doAfterOnCancel, doAfterOnComplete, doAfterOnError, filter, filter, flatMapIterable, limit, map, subscribe

Methods inherited from interface org.reactivestreams.Publisher

subscribe

Method Detail

create

static <T> PagePublisher<T> create(SdkPublisher<Page<T>> publisher)

Creates a flattened items publisher with the underlying page publisher.

items

default SdkPublisher<T> items()

Returns a publisher that can be used to request a stream of items across all pages.

This method is useful if you are interested in subscribing the items in the response pages instead of the top level pages.