Package org.springframework.core

Class ReactiveAdapter

java.lang.Object

org.springframework.core.ReactiveAdapter

public class ReactiveAdapter
extends Object

Adapter for a Reactive Streams Publisher to and from an async/reactive type such as CompletableFuture, RxJava Observable, and others.

An adapter is typically obtained via ReactiveAdapterRegistry.

Since:

5.0

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor	Description
ReactiveAdapter(ReactiveTypeDescriptor descriptor, Function<Object,Publisher<?>> toPublisherFunction, Function<Publisher<?>,Object> fromPublisherFunction)	Constructor for an adapter with functions to convert the target reactive or async type to and from a Reactive Streams Publisher.

Method Summary

Modifier and Type	Method	Description
Object	fromPublisher(Publisher<?> publisher)	Adapt from the given Reactive Streams Publisher.
ReactiveTypeDescriptor	getDescriptor()	Return the descriptor of the reactive type for the adapter.
Class<?>	getReactiveType()	Shortcut for getDescriptor().getReactiveType().
boolean	isMultiValue()	Shortcut for getDescriptor().isMultiValue().
boolean	isNoValue()	Shortcut for getDescriptor().isNoValue().
boolean	supportsEmpty()	Shortcut for getDescriptor().supportsEmpty().
<T> Publisher<T>	toPublisher(Object source)	Adapt the given instance to a Reactive Streams Publisher.

Methods inherited from class java.lang.Object

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

Constructor Details

ReactiveAdapter

public ReactiveAdapter(ReactiveTypeDescriptor descriptor,
 Function<Object,Publisher<?>> toPublisherFunction,
 Function<Publisher<?>,Object> fromPublisherFunction)

Constructor for an adapter with functions to convert the target reactive or async type to and from a Reactive Streams Publisher.

Parameters:

descriptor - the reactive type descriptor

toPublisherFunction - adapter to a Publisher

fromPublisherFunction - adapter from a Publisher

Method Details

getDescriptor

public ReactiveTypeDescriptor getDescriptor()

Return the descriptor of the reactive type for the adapter.

getReactiveType

public Class<?> getReactiveType()

Shortcut for getDescriptor().getReactiveType().

isMultiValue

public boolean isMultiValue()

Shortcut for getDescriptor().isMultiValue().

isNoValue

public boolean isNoValue()

Shortcut for getDescriptor().isNoValue().

supportsEmpty

public boolean supportsEmpty()

Shortcut for getDescriptor().supportsEmpty().

toPublisher

public <T> Publisher<T> toPublisher(@Nullable
 Object source)

Adapt the given instance to a Reactive Streams Publisher.

Parameters:

source - the source object to adapt from; if the given object is null, ReactiveTypeDescriptor.getEmptyValue() is used.

Returns:

the Publisher representing the adaptation

fromPublisher

public Object fromPublisher(Publisher<?> publisher)

Adapt from the given Reactive Streams Publisher.

Parameters:

publisher - the publisher to adapt from

Returns:

the reactive type instance representing the adapted publisher