Module lettuce.core

Package io.lettuce.core.api.reactive

Interface RedisHLLReactiveCommands<K,V>

Type Parameters:

K - Key type.

V - Value type.

All Known Subinterfaces:

RedisAdvancedClusterReactiveCommands<K,V>, RedisClusterPubSubReactiveCommands<K,V>, RedisClusterReactiveCommands<K,V>, RedisPubSubReactiveCommands<K,V>, RedisReactiveCommands<K,V>

All Known Implementing Classes:

AbstractRedisReactiveCommands, RedisAdvancedClusterReactiveCommandsImpl, RedisClusterPubSubReactiveCommandsImpl, RedisPubSubReactiveCommandsImpl, RedisReactiveCommandsImpl, RedisSentinelReactiveCommandsImpl

public interface RedisHLLReactiveCommands<K,V>

Reactive executed commands for HyperLogLog (PF* commands).

Since:

4.0

Author:

Mark Paluch

Generated class:

by io.lettuce.apigenerator.CreateReactiveApi

Method Summary

Modifier and Type	Method	Description
Mono<Long>	pfadd(K key, V... values)	Adds the specified elements to the specified HyperLogLog.
Mono<Long>	pfcount(K... keys)	Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s).
Mono<String>	pfmerge(K destkey, K... sourcekeys)	Merge N different HyperLogLogs into a single one.

Method Details

pfadd

Mono<Long> pfadd(K key,
V... values)

Adds the specified elements to the specified HyperLogLog.

Parameters:

key - the key.

values - the values.

Returns:

Long integer-reply specifically: 1 if at least 1 HyperLogLog internal register was altered. 0 otherwise.

pfmerge

Mono<String> pfmerge(K destkey,
K... sourcekeys)

Merge N different HyperLogLogs into a single one.

Parameters:

destkey - the destination key.

sourcekeys - the source key.

Returns:

String simple-string-reply The command just returns OK.

pfcount

Mono<Long> pfcount(K... keys)

Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s).

Parameters:

keys - the keys.

Returns:

Long integer-reply specifically: The approximated number of unique elements observed via PFADD.