Package io.lettuce.core

Class ZAggregateArgs

java.lang.Object

io.lettuce.core.ZAggregateArgs

All Implemented Interfaces:

CompositeArgument

Direct Known Subclasses:

ZStoreArgs

public class ZAggregateArgs
extends Object
implements CompositeArgument

Argument list builder for the Redis ZUNION, ZUNIONSTORE, ZINTER and ZINTERSTORE commands. Static import the methods from ZAggregateArgs.Builder and chain the method calls: weights(1, 2).max().

Since:

6.1

Author:

Will Glozer, Xy Ma, Mark Paluch, Mikhael Sokolov

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ZAggregateArgs.Builder	Builder entry points for ScanArgs.

Constructor Summary

Constructors

Constructor	Description
ZAggregateArgs()

Method Summary

Modifier and Type	Method	Description
<K,V> void	build(CommandArgs<K,V> args)	Build command arguments and contribute arguments to CommandArgs.
ZAggregateArgs	max()	Aggregate scores of elements existing across multiple sets by using the highest score.
ZAggregateArgs	min()	Aggregate scores of elements existing across multiple sets by using the lowest score.
ZAggregateArgs	sum()	Aggregate scores of elements existing across multiple sets by summing up.
ZAggregateArgs	weights(double... weights)	Specify a multiplication factor for each input sorted set.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZAggregateArgs

public ZAggregateArgs()

Method Detail

weights

public ZAggregateArgs weights(double... weights)

Specify a multiplication factor for each input sorted set.

Parameters:

weights - must not be null.

Returns:

this ZAggregateArgs.

sum

public ZAggregateArgs sum()

Aggregate scores of elements existing across multiple sets by summing up.

Returns:

this ZAggregateArgs.

min

public ZAggregateArgs min()

Aggregate scores of elements existing across multiple sets by using the lowest score.

Returns:

this ZAggregateArgs.

max

public ZAggregateArgs max()

Aggregate scores of elements existing across multiple sets by using the highest score.

Returns:

this ZAggregateArgs.

build

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

Description copied from interface: CompositeArgument

Build command arguments and contribute arguments to CommandArgs.

Implementing classes are required to implement this method. Depending on the command nature and configured arguments, this method may contribute arguments but is not required to add arguments if none are specified.

Specified by:

build in interface CompositeArgument

Type Parameters:

K - Key type.

V - Value type.

Parameters:

args - the command arguments, must not be null.