spring-data-redis ReactiveHyperLogLogOperations 源码
spring-data-redis ReactiveHyperLogLogOperations 代码
文件路径：/src/main/java/org/springframework/data/redis/core/ReactiveHyperLogLogOperations.java
/*
* Copyright 2017-2022 the original author or authors.
*
* 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
*
* https://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.springframework.data.redis.core;
import reactor.core.publisher.Mono;
/**
* Redis cardinality specific operations working on a HyperLogLog multiset.
*
* @author Mark Paluch
* @since 2.0
*/
public interface ReactiveHyperLogLogOperations<K, V> {
/**
* Adds the given {@literal values} to the {@literal key}.
*
* @param key must not be {@literal null}.
* @param values must not be {@literal null}.
* @return 1 of at least one of the values was added to the key; 0 otherwise.
*/
Mono<Long> add(K key, V... values);
/**
* Gets the current number of elements within the {@literal key}.
*
* @param keys must not be {@literal null} or {@literal empty}.
* @return
*/
Mono<Long> size(K... keys);
/**
* Merges all values of given {@literal sourceKeys} into {@literal destination} key.
*
* @param destination key of HyperLogLog to move source keys into.
* @param sourceKeys must not be {@literal null} or {@literal empty}.
*/
Mono<Boolean> union(K destination, K... sourceKeys);
/**
* Removes the given {@literal key}.
*
* @param key must not be {@literal null}.
*/
Mono<Boolean> delete(K key);
}
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