org.redisson.api

Interface RRingBufferReactive<V>

Type Parameters:

V - value type

All Superinterfaces:

RCollectionReactive<V>, RExpirableReactive, RObjectReactive, RQueueReactive<V>

public interface RRingBufferReactive<V>
extends RQueueReactive<V>

RingBuffer based queue evicts elements from the head if queue capacity became full.

The head element removed if new element added and queue is full.

Must be initialized with capacity size trySetCapacity(int) before usage.

Author:

Nikita Koksharov

Method Summary

Modifier and Type	Method and Description
reactor.core.publisher.Mono<Integer>	capacity() Returns capacity of this queue
reactor.core.publisher.Mono<Integer>	remainingCapacity() Returns remaining capacity of this queue
reactor.core.publisher.Mono<Void>	setCapacity(int capacity) Sets capacity of the queue and overrides current value.
reactor.core.publisher.Mono<Boolean>	trySetCapacity(int capacity) Sets queue capacity only if it is not set before.

Methods inherited from interface org.redisson.api.RQueueReactive

offer, peek, poll, poll, pollLastAndOfferFirstTo, readAll

Methods inherited from interface org.redisson.api.RCollectionReactive

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

Methods inherited from interface org.redisson.api.RExpirableReactive

clearExpire, expire, expireAt, expireAt, remainTimeToLive

Methods inherited from interface org.redisson.api.RObjectReactive

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

Method Detail

trySetCapacity

reactor.core.publisher.Mono<Boolean> trySetCapacity(int capacity)

Sets queue capacity only if it is not set before.

Parameters:

capacity - - queue capacity

Returns:

true if capacity set successfully false if capacity already set

setCapacity

reactor.core.publisher.Mono<Void> setCapacity(int capacity)

Sets capacity of the queue and overrides current value. Trims queue if previous capacity value was greater than new.

Parameters:

capacity - - queue capacity

remainingCapacity

reactor.core.publisher.Mono<Integer> remainingCapacity()

Returns remaining capacity of this queue

Returns:

remaining capacity

capacity

reactor.core.publisher.Mono<Integer> capacity()

Returns capacity of this queue

Returns:

queue capacity