Class GenericMessageReactionEvent

java.lang.Object

net.dv8tion.jda.api.events.Event

net.dv8tion.jda.api.events.message.GenericMessageEvent

net.dv8tion.jda.api.events.message.react.GenericMessageReactionEvent

All Implemented Interfaces:

GenericEvent

Direct Known Subclasses:

MessageReactionAddEvent, MessageReactionRemoveEvent

public class GenericMessageReactionEvent
extends GenericMessageEvent

Indicates that a MessageReaction was added/removed.
Every MessageReactionEvent is derived from this event and can be casted.

Can be used to detect both remove and add events.

Requirements

These events require at least one of the following intents (Will not fire at all if neither is enabled):

• GUILD_MESSAGE_REACTIONS to work in guild text channels
• DIRECT_MESSAGE_REACTIONS to work in private channels

Constructor Summary

Constructors

Constructor	Description
GenericMessageReactionEvent(JDA api, long responseNumber, User user, Member member, MessageReaction reaction, long userId)

Method Summary

Modifier and Type	Method	Description
EmojiUnion	getEmoji()	The Emoji of the reaction, shortcut for getReaction().getEmoji()
Member	getMember()	The Member instance for the reacting user or null if the reaction was from a user not in this guild.
MessageReaction	getReaction()	The MessageReaction
User	getUser()	The reacting User This might be missing if the user was not cached.
String	getUserId()	The id for the user who owns the reaction.
long	getUserIdLong()	The id for the user who owns reaction.
RestAction<Member>	retrieveMember()	Retrieves the Member who owns the reaction.
RestAction<Message>	retrieveMessage()	Retrieves the message for this reaction event.
RestAction<User>	retrieveUser()	Retrieves the User who owns the reaction.

Methods inherited from class GenericMessageEvent

getChannel, getChannelType, getGuild, getGuildChannel, getJumpUrl, getMessageId, getMessageIdLong, isFromGuild, isFromThread, isFromType

Methods inherited from class Event

getJDA, getRawData, getResponseNumber, toString

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

GenericMessageReactionEvent

public GenericMessageReactionEvent(@Nonnull
 JDA api,
 long responseNumber,
 @Nullable
 User user,
 @Nullable
 Member member,
 @Nonnull
 MessageReaction reaction,
 long userId)

Method Details

getUserId

@Nonnull
public String getUserId()

The id for the user who owns the reaction.

Returns:

The user id

getUserIdLong

public long getUserIdLong()

The id for the user who owns reaction.

Returns:

The user id

getUser

@Nullable
public User getUser()

The reacting User
This might be missing if the user was not cached. Use retrieveUser() to load the user.

Returns:

The reacting user or null if this information is missing

getMember

@Nullable
public Member getMember()

The Member instance for the reacting user or null if the reaction was from a user not in this guild.
This will also be null if the member is not available in the cache. Use retrieveMember() to load the member.

Returns:

Member of the reacting user or null if they are no longer member of this guild

Throws:

IllegalStateException - If this was not sent in a Guild.

See Also:

• GenericMessageEvent.isFromGuild()
• GenericMessageEvent.getChannelType()

getReaction

@Nonnull
public MessageReaction getReaction()

The MessageReaction

Returns:

The MessageReaction

getEmoji

@Nonnull
public EmojiUnion getEmoji()

The Emoji of the reaction, shortcut for getReaction().getEmoji()

Returns:

The Emoji instance

retrieveUser

@Nonnull
@CheckReturnValue
public RestAction<User> retrieveUser()

Retrieves the User who owns the reaction.
If a user is known, this will return getUser().

Returns:

RestAction - Type: User

Since:

4.2.1

retrieveMember

@Nonnull
@CheckReturnValue
public RestAction<Member> retrieveMember()

Retrieves the Member who owns the reaction.
If a member is known, this will return getMember().

Note that banning a member will also fire MessageReactionRemoveEvent and no member will be available in those cases. An UNKNOWN_MEMBER error response should be the failure result.

Returns:

RestAction - Type: Member

Throws:

IllegalStateException - If this event is not from a guild

Since:

4.2.1

retrieveMessage

@Nonnull
@CheckReturnValue
public RestAction<Message> retrieveMessage()

Retrieves the message for this reaction event.
Simple shortcut for getChannel().retrieveMessageById(getMessageId()).

The Message.getMember() method will always return null for the resulting message. To retrieve the member you can use getGuild().retrieveMember(message.getAuthor()).

Returns:

RestAction - Type: Message

Since:

4.2.1