io.lettuce.core.search.arguments

Class PostProcessingArgs.Reducer<K,V>

java.lang.Object

io.lettuce.core.search.arguments.PostProcessingArgs.Reducer<K,V>

Type Parameters:

K - Key type.

V - Value type.

Enclosing class:

PostProcessingArgs<K,V>

public static class PostProcessingArgs.Reducer<K,V>
extends Object

REDUCE function for GROUPBY operations. Performs aggregate operations on grouped results with optional aliasing.

See Also:

PostProcessingArgs.ReduceFunction

Method Summary

Modifier and Type	Method and Description
PostProcessingArgs.Reducer<K,V>	as(K alias) Set an alias for the reducer result.
void	build(CommandArgs<K,V> args) Build the reducer into command args.
static <K,V> PostProcessingArgs.Reducer<K,V>	of(PostProcessingArgs.ReduceFunction function, V... args) Static factory method to create a Reducer with a function and optional arguments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

of

@SafeVarargs
public static <K,V> PostProcessingArgs.Reducer<K,V> of(PostProcessingArgs.ReduceFunction function,
                                                                    V... args)

Static factory method to create a Reducer with a function and optional arguments.

Type Parameters:

K - Key type

V - Value type

Parameters:

function - the reducer function

args - the arguments to the reducer function (optional, can be empty for COUNT)

Returns:

new Reducer instance

as

public PostProcessingArgs.Reducer<K,V> as(K alias)

Set an alias for the reducer result.

Parameters:

alias - the alias name

Returns:

this reducer

build

public void build(CommandArgs<K,V> args)

Build the reducer into command args.

Parameters:

args - the command args to build into