Package org.infinispan.server.resp.commands.list

Class LMPOP

java.lang.Object

org.infinispan.server.resp.RespCommand

org.infinispan.server.resp.commands.list.LMPOP

All Implemented Interfaces:

Resp3Command

public class LMPOP
extends RespCommand
implements Resp3Command

Pops one or more elements from the first non-empty list key from the list of provided key names. Elements are popped from either the left or right of the first non-empty list based on the passed argument. The number of returned elements is limited to the lower between the non-empty list's length, and the count argument (which defaults to 1). Returns array reply, specifically:

• null when no element could be popped.
• A two-element array with the first element being the name of the key from which elements were popped, and the second element is an array of elements.

Since:

15.0

See Also:

• Redis Documentation

Field Summary

Fields

Modifier and Type	Field	Description
static final byte[]	COUNT
static final byte[]	LEFT
static final byte[]	RIGHT

Fields inherited from class org.infinispan.server.resp.RespCommand

log

Constructor Summary

Constructors

Constructor	Description
LMPOP()

Method Summary

Modifier and Type	Method	Description
CompletionStage<RespRequestHandler>	perform(Resp3Handler handler, io.netty.channel.ChannelHandlerContext ctx, List<byte[]> arguments)

Methods inherited from class org.infinispan.server.resp.RespCommand

extractKeys, fromByteBuf, getArity, getFirstKeyPos, getLastKeyPos, getName, getSteps, handleException, hasValidNumberOfArguments, match, size, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.infinispan.server.resp.commands.Resp3Command

handleException

Field Details

COUNT

public static final byte[] COUNT

LEFT

public static final byte[] LEFT

RIGHT

public static final byte[] RIGHT

Constructor Details

LMPOP

public LMPOP()

Method Details

perform

public CompletionStage<RespRequestHandler> perform(Resp3Handler handler,
 io.netty.channel.ChannelHandlerContext ctx,
 List<byte[]> arguments)

Specified by:

perform in interface Resp3Command