org.redisson.api.RBucketReactive Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of redisson-all Show documentation

Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC

There is a newer version: 3.40.2

Show newest version

/**
 * 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 org.redisson.api;

import reactor.core.publisher.Mono;

import java.util.concurrent.TimeUnit;


/**
 * Reactive implementation of object holder. Max size of object is 512MB
 *
 * @author Nikita Koksharov
 *
 * @param  - the type of object
 */
public interface RBucketReactive extends RExpirableReactive {

    /**
     * Returns size of object in bytes
     * 
     * @return object size
     */
    Mono size();
    
    /**
     * Tries to set element atomically into empty holder.
     * 
     * @param value - value to set
     * @return {@code true} if successful, or {@code false} if
     *         element was already set
     */
    Mono trySet(V value);

    /**
     * Tries to set element atomically into empty holder with defined timeToLive interval.
     * 
     * @param value - value to set
     * @param timeToLive - time to live interval
     * @param timeUnit - unit of time to live interval
     * @return {@code true} if successful, or {@code false} if
     *         element was already set
     */
    Mono trySet(V value, long timeToLive, TimeUnit timeUnit);

    /**
     * Sets value only if it's already exists.
     *
     * @param value - value to set
     * @return {@code true} if successful, or {@code false} if
     *         element wasn't set
     */
    Mono setIfExists(V value);

    /**
     * Sets value only if it's already exists.
     *
     * @param value - value to set
     * @param timeToLive - time to live interval
     * @param timeUnit - unit of time to live interval
     * @return {@code true} if successful, or {@code false} if
     *         element wasn't set
     */
    Mono setIfExists(V value, long timeToLive, TimeUnit timeUnit);

    /**
     * Atomically sets the value to the given updated value
     * only if serialized state of the current value equals 
     * to serialized state of the expected value.
     *
     * @param expect the expected value
     * @param update the new value
     * @return {@code true} if successful; or {@code false} if the actual value
     *         was not equal to the expected value.
     */
    Mono compareAndSet(V expect, V update);

    /**
     * Retrieves current element in the holder and replaces it with newValue. 
     * 
     * @param newValue - value to set
     * @return previous value
     */
    Mono getAndSet(V newValue);

    /**
     * Retrieves current element in the holder and replaces it with newValue with defined timeToLive interval. 
     * 
     * @param value - value to set
     * @param timeToLive - time to live interval
     * @param timeUnit - unit of time to live interval
     * @return previous value
     */
    Mono getAndSet(V value, long timeToLive, TimeUnit timeUnit);
    
    /**
     * Retrieves element stored in the holder.
     * 
     * @return element
     */
    Mono get();
    
    /**
     * Retrieves element in the holder and removes it.
     * 
     * @return element
     */
    Mono getAndDelete();

    /**
     * Stores element into the holder. 
     * 
     * @param value - value to set
     * @return void
     */
    Mono set(V value);

    /**
     * Stores element into the holder with defined timeToLive interval.
     * 
     * @param value - value to set
     * @param timeToLive - time to live interval
     * @param timeUnit - unit of time to live interval
     * @return void
     */
    Mono set(V value, long timeToLive, TimeUnit timeUnit);

    /**
     * Set value and keep existing TTL.
     * 
     * Requires Redis 6.0.0 and higher.
     *
     * @param value - value to set
     * @return void
     */
    Mono setAndKeepTTL(V value);

}