com.github.lontime.shaded.org.redisson.api.RBlockingDeque Maven / Gradle / Ivy
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/**
* Copyright (c) 2013-2021 Nikita Koksharov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.github.lontime.shaded.org.redisson.api;
import com.github.lontime.shaded.org.redisson.api.queue.DequeMoveArgs;
import java.time.Duration;
import java.util.concurrent.BlockingDeque;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
/**
* {@link BlockingDeque} backed by Redis
*
* @author Nikita Koksharov
* @param the type of elements held in this collection
*/
public interface RBlockingDeque extends BlockingDeque, RBlockingQueue, RDeque, RBlockingDequeAsync {
/**
* Retrieves and removes first available head element of any queue,
* waiting up to the specified wait time if necessary for an element to become available
* in any of defined queues including queue own.
*
* @param queueNames - names of queue
* @param timeout how long to wait before giving up, in units of
* {@code unit}
* @param unit a {@code TimeUnit} determining how to interpret the
* {@code timeout} parameter
* @return the head of this queue, or {@code null} if the
* specified waiting time elapses before an element is available
* @throws InterruptedException if interrupted while waiting
*/
V pollFirstFromAny(long timeout, TimeUnit unit, String... queueNames) throws InterruptedException;
/**
* Retrieves and removes first available tail element of any queue,
* waiting up to the specified wait time if necessary for an element to become available
* in any of defined queues including queue own.
*
* @param queueNames - names of queue
* @param timeout how long to wait before giving up, in units of
* {@code unit}
* @param unit a {@code TimeUnit} determining how to interpret the
* {@code timeout} parameter
* @return the head of this queue, or {@code null} if the
* specified waiting time elapses before an element is available
* @throws InterruptedException if interrupted while waiting
*/
V pollLastFromAny(long timeout, TimeUnit unit, String... queueNames) throws InterruptedException;
V move(Duration timeout, DequeMoveArgs args);
/**
* Subscribes on first elements appeared in this queue.
* Continuously invokes {@link #takeFirstAsync()} method to get a new element.
*
* @param consumer - queue elements listener
* @return listenerId - id of listener
*/
int subscribeOnFirstElements(Consumer consumer);
/**
* Subscribes on last elements appeared in this queue.
* Continuously invokes {@link #takeLastAsync()} method to get a new element.
*
* @param consumer - queue elements listener
* @return listenerId - id of listener
*/
int subscribeOnLastElements(Consumer consumer);
}