org.openingo.spring.boot.extension.data.redis.commands

接口 IHyperLogLogCommands<K,V>

所有已知子接口:

IRedisCommands<K,V>

所有已知实现类:

DistributedLockStore, IdempotentStore, RedisIdEngine, RedisStringKeyTemplateX, RedisTemplateX

public interface IHyperLogLogCommands<K,V>

IHyperLogLogCommands

作者:

Qicz

方法概要

限定符和类型	方法和说明
Long	pfAdd(K key, V... values) Adds the given values to the key.
Long	pfCount(K... keys) Gets the current number of elements within the key.
Long	pfMerge(K destination, K... sourceKeys) Merges all values of given sourceKeys into destination key.

方法详细资料

pfAdd

Long pfAdd(K key,
           V... values)

Adds the given values to the key.

参数:

key - must not be null.

values - must not be null.

返回:

1 of at least one of the values was added to the key; 0 otherwise. null when used in pipeline / transaction.

另请参阅:

Redis Documentation: PFADD

pfCount

Long pfCount(K... keys)

Gets the current number of elements within the key.

参数:

keys - must not be null or empty.

返回:

null when used in pipeline / transaction.

另请参阅:

Redis Documentation: PFCOUNT

pfMerge

Long pfMerge(K destination,
             K... sourceKeys)

Merges all values of given sourceKeys into destination key.

参数:

destination - key of HyperLogLog to move source keys into.

sourceKeys - must not be null or empty.

返回:

null when used in pipeline / transaction.

另请参阅:

Redis Documentation: PFMERGE