Package io.activej.csp.queue

Class ChannelBufferWithFallback<T>

java.lang.Object

io.activej.csp.queue.ChannelBufferWithFallback<T>

All Implemented Interfaces:

io.activej.async.process.AsyncCloseable, ChannelConsumerTransformer<T,ChannelConsumer<T>>, ChannelSupplierTransformer<T,ChannelSupplier<T>>, ChannelTransformer<T,T>, ChannelQueue<T>

public final class ChannelBufferWithFallback<T>
extends Object
implements ChannelQueue<T>

Field Summary

Fields inherited from interface io.activej.async.process.AsyncCloseable

STATIC

Constructor Summary

Constructors

Constructor	Description
ChannelBufferWithFallback(ChannelQueue<T> queue, Supplier<io.activej.promise.Promise<? extends ChannelQueue<T>>> bufferFactory)

Method Summary

Modifier and Type	Method	Description
void	closeEx(@NotNull Exception e)
io.activej.promise.Promise<T>	doTake()
@Nullable Exception	getException()
boolean	isExhausted()
boolean	isSaturated()
io.activej.promise.Promise<Void>	put(T item)	Puts an item in the queue and returns a promise of null as a marker of completion.
io.activej.promise.Promise<T>	take()	Takes an element of this queue and wraps it in promise.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.activej.async.process.AsyncCloseable

close

Methods inherited from interface io.activej.csp.queue.ChannelQueue

getConsumer, getConsumer, getSupplier, transform, transform

Constructor Details

ChannelBufferWithFallback

public ChannelBufferWithFallback(ChannelQueue<T> queue,
 Supplier<io.activej.promise.Promise<? extends ChannelQueue<T>>> bufferFactory)

Method Details

put

public io.activej.promise.Promise<Void> put(@Nullable
 T item)

Description copied from interface: ChannelQueue

Puts an item in the queue and returns a promise of null as a marker of completion.

Specified by:

put in interface ChannelQueue<T>

Parameters:

item - a item passed to the queue

Returns:

promise of null as a marker of completion

take

public io.activej.promise.Promise<T> take()

Description copied from interface: ChannelQueue

Takes an element of this queue and wraps it in promise.

Specified by:

take in interface ChannelQueue<T>

Returns:

a promise of value from the queue

doTake

public io.activej.promise.Promise<T> doTake()

isSaturated

public boolean isSaturated()

Specified by:

isSaturated in interface ChannelQueue<T>

isExhausted

public boolean isExhausted()

Specified by:

isExhausted in interface ChannelQueue<T>

closeEx

public void closeEx(@NotNull
 @NotNull Exception e)

Specified by:

closeEx in interface io.activej.async.process.AsyncCloseable

getException

@Nullable
public @Nullable Exception getException()