org.redisson.api

Interface RQueueRx<V>

Type Parameters:

V - the type of elements held in this collection

All Superinterfaces:

RCollectionRx<V>, RExpirableRx, RObjectRx

All Known Subinterfaces:

RBlockingDequeRx<V>, RBlockingQueueRx<V>, RDequeRx<V>, RRingBufferRx<V>

public interface RQueueRx<V>
extends RCollectionRx<V>

RxJava2 interface for Queue object

Author:

Nikita Koksharov

Method Summary

Modifier and Type	Method and Description
io.reactivex.Single<Boolean>	offer(V e) Inserts the specified element into this queue.
io.reactivex.Maybe<V>	peek() Retrieves the head of this queue in async mode.
io.reactivex.Maybe<V>	poll() Retrieves and removes the head of this queue in async mode.
io.reactivex.Maybe<V>	pollLastAndOfferFirstTo(String queueName) Retrieves and removes last available tail element of this queue queue and adds it at the head of queueName.
io.reactivex.Single<List<V>>	readAll() Returns all queue elements at once

Methods inherited from interface org.redisson.api.RCollectionRx

add, addAll, addAll, contains, containsAll, iterator, remove, removeAll, retainAll, size

Methods inherited from interface org.redisson.api.RExpirableRx

clearExpire, expire, expireAt, expireAt, remainTimeToLive

Methods inherited from interface org.redisson.api.RObjectRx

addListener, copy, delete, dump, getCodec, getName, isExists, migrate, move, removeListener, rename, renamenx, restore, restore, restoreAndReplace, restoreAndReplace, sizeInMemory, touch, unlink

Method Detail

peek

io.reactivex.Maybe<V> peek()

Retrieves the head of this queue in async mode.

Returns:

the head of this queue, or null

poll

io.reactivex.Maybe<V> poll()

Retrieves and removes the head of this queue in async mode.

Returns:

the head of this queue, or null

offer

io.reactivex.Single<Boolean> offer(V e)

Inserts the specified element into this queue.

Parameters:

e - the element to add

Returns:

true if successful, or false

Throws:

ClassCastException - if the class of the specified element prevents it from being added to this queue

NullPointerException - if the specified element is null

pollLastAndOfferFirstTo

io.reactivex.Maybe<V> pollLastAndOfferFirstTo(String queueName)

Retrieves and removes last available tail element of this queue queue and adds it at the head of queueName.

Parameters:

queueName - - names of destination queue

Returns:

the tail of this queue, or null if the specified waiting time elapses before an element is available

readAll

io.reactivex.Single<List<V>> readAll()

Returns all queue elements at once

Returns:

elements