io.servicetalk.concurrent.internal

Class LatestValueSubscriber<T>

java.lang.Object

io.servicetalk.concurrent.internal.LatestValueSubscriber<T>

Type Parameters:

T - The type of data.

All Implemented Interfaces:

PublisherSource.Subscriber<T>

public final class LatestValueSubscriber<T>
extends java.lang.Object
implements PublisherSource.Subscriber<T>

A PublisherSource.Subscriber which makes the latest value from onNext(Object) available outside the context of the PublisherSource.Subscriber.

Constructor Summary

Constructors

Constructor and Description
LatestValueSubscriber()

Method Summary

Modifier and Type	Method and Description
T	lastSeenValue(T defaultValue) Get the last seen value.
void	onComplete() Callback to signal completion of the PublisherSource for this Subscriber.
void	onError(java.lang.Throwable t) Callback to receive an error for this Subscriber.
void	onNext(T newValue) Callback to receive a data element for this Subscriber.
void	onSubscribe(PublisherSource.Subscription s) Callback to receive a PublisherSource.Subscription for this Subscriber.

Methods inherited from class java.lang.Object

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

Constructor Detail

LatestValueSubscriber

public LatestValueSubscriber()

Method Detail

onSubscribe

public void onSubscribe(PublisherSource.Subscription s)

Description copied from interface: PublisherSource.Subscriber

Callback to receive a PublisherSource.Subscription for this Subscriber.

See Reactive Streams specifications for the rules about how and when this method will be invoked.

Specified by:

onSubscribe in interface PublisherSource.Subscriber<T>

Parameters:

s - PublisherSource.Subscription for this Subscriber.

onNext

public void onNext(T newValue)

Description copied from interface: PublisherSource.Subscriber

Callback to receive a data element for this Subscriber.

See Reactive Streams specifications for the rules about how and when this method will be invoked.

Specified by:

onNext in interface PublisherSource.Subscriber<T>

Parameters:

newValue - A data element.

onError

public void onError(java.lang.Throwable t)

Description copied from interface: PublisherSource.Subscriber

Callback to receive an error for this Subscriber.

See Reactive Streams specifications for the rules about how and when this method will be invoked.

Specified by:

onError in interface PublisherSource.Subscriber<T>

Parameters:

t - error for this Subscriber.

onComplete

public void onComplete()

Description copied from interface: PublisherSource.Subscriber

Callback to signal completion of the PublisherSource for this Subscriber.

See Reactive Streams specifications for the rules about how and when this method will be invoked.

Specified by:

onComplete in interface PublisherSource.Subscriber<T>

lastSeenValue

public T lastSeenValue(T defaultValue)

Get the last seen value.

Parameters:

defaultValue - The default value if there has been no values seen

Returns:

the last seen value