Package io.quarkus.redis.datasource.countmin

Interface ReactiveCountMinCommands<K,V>

Type Parameters:

K - the type of the key

V - the type of the value stored in the sketch

All Superinterfaces:

ReactiveRedisCommands

All Known Implementing Classes:

ReactiveCountMinCommandsImpl

public interface ReactiveCountMinCommands<K,V>
extends ReactiveRedisCommands

Allows executing commands from the count-min group. These commands require the Redis Bloom module (this modules also include Count-Min Sketches) to be installed in the Redis server.

See the count-min command list for further information about these commands.

Method Summary

Modifier and Type	Method	Description
io.smallrye.mutiny.Uni<Map<V,Long>>	cmsIncrBy(K key, Map<V,Long> couples)	Execute the command CMS.INCRBY.
io.smallrye.mutiny.Uni<Long>	cmsIncrBy(K key, V value, long increment)	Execute the command CMS.INCRBY.
io.smallrye.mutiny.Uni<Void>	cmsInitByDim(K key, long width, long depth)	Execute the command CMS.INITBYDIM.
io.smallrye.mutiny.Uni<Void>	cmsInitByProb(K key, double error, double probability)	Execute the command CMS.INITBYPROB.
io.smallrye.mutiny.Uni<Void>	cmsMerge(K dest, List<K> src, List<Integer> weight)	Execute the command CMS.MERGE.
io.smallrye.mutiny.Uni<Long>	cmsQuery(K key, V item)	Execute the command CMS.QUERY.
io.smallrye.mutiny.Uni<List<Long>>	cmsQuery(K key, V... items)	Execute the command CMS.QUERY.

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

getDataSource

Method Detail

cmsIncrBy

io.smallrye.mutiny.Uni<Long> cmsIncrBy(K key,
                                       V value,
                                       long increment)

Execute the command CMS.INCRBY. Summary: Increases the count of item by increment. Multiple items can be increased with one call. Group: count-min

Parameters:

key - the name of the sketch, must not be null

value - the value, must not be null

increment - the increment

Returns:

a uni producing the updated min-count for the added value

cmsIncrBy

io.smallrye.mutiny.Uni<Map<V,Long>> cmsIncrBy(K key,
                                                    Map<V,Long> couples)

Execute the command CMS.INCRBY. Summary: Increases the count of item by increment. Multiple items can be increased with one call. Group: count-min

Parameters:

key - the name of the sketch, must not be null

couples - the set of value/increment pair, must not be null, must not be empty

Returns:

a uni producing a map containing the updated min-count for each added value

cmsInitByDim

io.smallrye.mutiny.Uni<Void> cmsInitByDim(K key,
                                          long width,
                                          long depth)

Execute the command CMS.INITBYDIM. Summary: Initializes a Count-Min Sketch to dimensions specified by user. Group: count-min

Parameters:

key - the name of the sketch, must not be null

width - the number of counters in each array. Reduces the error size.

depth - the number of counter-arrays. Reduces the probability for an error of a certain size (percentage of total count).

Returns:

a uni producing null when the operation completes

cmsInitByProb

io.smallrye.mutiny.Uni<Void> cmsInitByProb(K key,
                                           double error,
                                           double probability)

Execute the command CMS.INITBYPROB. Summary: Initializes a Count-Min Sketch to accommodate requested tolerances. Group: count-min

Parameters:

key - the name of the sketch, must not be null

error - estimate size of error. The error is a percent of total counted items (in decimal). This effects the width of the sketch.

probability - the desired probability for inflated count. This should be a decimal value between 0 and 1.

Returns:

a uni producing null when the operation completes

cmsQuery

io.smallrye.mutiny.Uni<Long> cmsQuery(K key,
                                      V item)

Execute the command CMS.QUERY. Summary: Returns the count for one or more items in a sketch. Group: count-min

Parameters:

key - the name of the sketch, must not be null

item - the item to check, must not be null

Returns:

a uni producing the count for the given item

cmsQuery

io.smallrye.mutiny.Uni<List<Long>> cmsQuery(K key,
                                            V... items)

Execute the command CMS.QUERY. Summary: Returns the count for one or more items in a sketch. Group: count-min

Parameters:

key - the name of the sketch, must not be null

items - the items to check, must not be null, empty or contain null

Returns:

a uni producing a list containing the count for the corresponding item

cmsMerge

io.smallrye.mutiny.Uni<Void> cmsMerge(K dest,
                                      List<K> src,
                                      List<Integer> weight)

Execute the command CMS.MERGE. Summary: Merges several sketches into one sketch. All sketches must have identical width and depth. Weights can be used to multiply certain sketches. Default weight is 1. Group: count-min

Parameters:

dest - The name of destination sketch. Must be initialized, must not be null

src - The names of source sketches to be merged. Must not be null, must not contain null, must not be empty.

weight - The multiple of each sketch. Default =1, can be empty, can be null

Returns:

a uni producing null once the operation completes