All Implemented Interfaces:
```
public final class OpenChannel
extends BaseChannel
                    
```
Open channel.
A large-scale public channel similar to a chatroom, supporting a large number of concurrent participants. Users can create, enter, and leave open channels freely.
Inherits from BaseChannel and supports message querying and unread count management.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public class`	`OpenChannel.Companion`

Field Summary

Fields
Modifier and Type	Field	Description
`private Integer`	`participantCount`
`private final String`	`channelId`
`private final ChannelType`	`channelType`
`private final Integer`	`unreadCount`
`private final Boolean`	`isPinned`
`private final Long`	`operationTime`
`private final String`	`draft`
`private final Message`	`latestMessage`
`private final Integer`	`mentionedCount`
`private final Integer`	`mentionedMeCount`
`private final ChannelNoDisturbLevel`	`noDisturbLevel`
`private final TranslateStrategy`	`translateStrategy`
`private final Boolean`	`includeRobot`
`private final EditedMessageDraft`	`editedMessageDraft`
`public final static OpenChannel.Companion`	`Companion`

Constructor Summary

Constructors
Constructor	Description
`OpenChannel(String channelId)`

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final Integer`	`getParticipantCount()`	Current participant count.
`final Unit`	`setParticipantCount(Integer participantCount)`	Current participant count.
`final Unit`	`enterChannel(EnterOpenChannelParams params, ErrorHandler handler)`	Enters (joins) this open channel.
`final Unit`	`exitChannel(String extra, ErrorHandler handler)`	Exits (leaves) this open channel.
`final Unit`	`getMetadata(String key, OperationHandler<Map<String, String>> handler)`	Gets metadata for this open channel by key.
`final Unit`	`setMetadata(OpenChannelSetMetadataParams params, ErrorHandler handler)`	Sets metadata for this open channel.
`final Unit`	`deleteMetadata(OpenChannelDeleteMetadataParams params, ErrorHandler handler)`	Batch deletes metadata for this open channel.

Methods inherited from class ai.nexconn.chat.channel.BaseChannel
clearDraft, clearUnreadCount, delete, deleteLocalMessages, deleteMessageForAll, deleteMessagesForMe, deleteMessagesForMeByTimestamp, deleteTags, equals, getChannelId, getChannelType, getDraft, getEditedMessageDraft, getFirstUnreadMessage, getIncludeRobot, getLatestMessage, getMentionedCount, getMentionedMeCount, getMessageReadReceiptInfo, getMessageReadReceiptInfoByIdentifiers, getMessagesAroundTime, getMessagesReadReceiptByUsers, getNoDisturbLevel, getOperationTime, getTags, getTranslateStrategy, getUnreadCount, getUnreadMentionedMessages, hashCode, insertMessages, isPinned, modifyMessage, pin, reload, saveDraft, sendMediaMessage, sendMessage, sendReadReceiptResponse, setNoDisturbLevel, toString, unpin
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - OpenChannel
```
OpenChannel(String channelId)
```
- Method Detail
  - getParticipantCount
```
 final Integer getParticipantCount()
```
    Current participant count.
  - setParticipantCount
```
 final Unit setParticipantCount(Integer participantCount)
```
    Current participant count.
  - enterChannel
```
 final Unit enterChannel(EnterOpenChannelParams params, ErrorHandler handler)
```
    Enters (joins) this open channel.
    After entering, the user can send and receive messages. Fails if the channel does not exist.
    
    Parameters:
    
    params - Enter channel parameters including message count and extra info
    
    handler - Error callback; null error indicates success
  - exitChannel
```
 final Unit exitChannel(String extra, ErrorHandler handler)
```
    Exits (leaves) this open channel.
    After exiting, the user will no longer receive messages from this channel.
    
    Parameters:
    
    extra - Additional information to send when exiting the channel
    
    handler - Error callback; null error indicates success
  - getMetadata
```
 final Unit getMetadata(String key, OperationHandler<Map<String, String>> handler)
```
    Gets metadata for this open channel by key.
    Note: The chatroom status storage feature must be enabled first.
    
    Parameters:
    
    key - The metadata key
    
    handler - Callback returning the key-value pair on success
  - setMetadata
```
 final Unit setMetadata(OpenChannelSetMetadataParams params, ErrorHandler handler)
```
    Sets metadata for this open channel.
    
    Parameters:
    
    params - Metadata parameters including entries, delete-when-left flag, and overwrite flag
    
    handler - Error callback; null error indicates success
  - deleteMetadata
```
 final Unit deleteMetadata(OpenChannelDeleteMetadataParams params, ErrorHandler handler)
```
    Batch deletes metadata for this open channel.
    
    Parameters:
    
    params - Delete parameters including the keys to remove
    
    handler - Error callback; null error indicates success

Class OpenChannel

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class ai.nexconn.chat.channel.BaseChannel

Methods inherited from class java.lang.Object

Constructor Detail

OpenChannel

Method Detail

getParticipantCount

setParticipantCount

enterChannel

exitChannel

getMetadata

setMetadata

deleteMetadata