Package io.quarkus.redis.datasource.hyperloglog

Interface ReactiveHyperLogLogCommands<K,V>

Type Parameters:

K - the type of the key

V - the type of the value stored in the sets

All Superinterfaces:

ReactiveRedisCommands

All Known Implementing Classes:

ReactiveHyperLogLogCommandsImpl

public interface ReactiveHyperLogLogCommands<K,V>
extends ReactiveRedisCommands

Allows executing commands from the hyperloglog group. See the hyperloglog command list for further information about these commands.

Method Summary

Modifier and Type	Method	Description
io.smallrye.mutiny.Uni<Boolean>	pfadd(K key, V... values)	Execute the command PFADD.
io.smallrye.mutiny.Uni<Long>	pfcount(K... keys)	Execute the command PFCOUNT.
io.smallrye.mutiny.Uni<Void>	pfmerge(K destkey, K... sourcekeys)	Execute the command PFMERGE.

Methods inherited from interface io.quarkus.redis.datasource.ReactiveRedisCommands

getDataSource

Method Detail

pfadd

io.smallrye.mutiny.Uni<Boolean> pfadd(K key,
                                      V... values)

Execute the command PFADD. Summary: Adds the specified elements to the specified HyperLogLog. Group: hyperloglog Requires Redis 2.8.9

Parameters:

key - the key

values - the values

Returns:

true at least 1 HyperLogLog internal register was altered. 0 otherwise.

pfmerge

io.smallrye.mutiny.Uni<Void> pfmerge(K destkey,
                                     K... sourcekeys)

Execute the command PFMERGE. Summary: Merge N different HyperLogLogs into a single one. Group: hyperloglog Requires Redis 2.8.9

Parameters:

destkey - the key

sourcekeys - the source keys

Returns:

a Uni emitting a null item on completion

pfcount

io.smallrye.mutiny.Uni<Long> pfcount(K... keys)

Execute the command PFCOUNT. Summary: Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s). Group: hyperloglog Requires Redis 2.8.9

Returns:

The approximated number of unique elements observed via PFADD.