org.springframework.data.redis.core

Interface HyperLogLogOperations<K,V>

All Known Implementing Classes:

DefaultHyperLogLogOperations

public interface HyperLogLogOperations<K,V>

Since:

1.5

Method Summary

Methods

Modifier and Type	Method and Description
Long	add(K key, V... values) Adds the given values to the key.
void	delete(K key) Removes the given key.
Long	size(K... keys) Gets the current number of elements within the key.
Long	union(K destination, K... sourceKeys) Merges all values of given sourceKeys into destination key.

Method Detail

add

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

Adds the given values to the key.

Parameters:

key - must not be null.

values - must not be null.

Returns:

1 of at least one of the values was added to the key; 0 otherwise.

size

Long size(K... keys)

Gets the current number of elements within the key.

Parameters:

keys - must not be null or empty.

Returns:

union

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

Merges all values of given sourceKeys into destination key.

Parameters:

destination - key of HyperLogLog to move source keys into.

sourceKeys - must not be null or empty.

delete

void delete(K key)

Removes the given key.

Parameters:

key - must not be null.