ChannelBase.Presence (java 1.1.8 API)

java.lang.Object
- io.ably.lib.rest.ChannelBase.Presence

Enclosing class:

ChannelBase
```
public class ChannelBase.Presence
extends java.lang.Object
```
A class enabling access to Channel Presence information via the REST API. Since the library is stateless, REST clients are therefore never present themselves. This API enables the service to be queried to determine presence state for other clients on this channel.

Constructor Summary

Constructors
Constructor Description

Presence()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PaginatedResult<PresenceMessage>`	`get(Param[] params)`	Get the presence state for this Channel.
`void`	`getAsync(Param[] params, Callback<AsyncPaginatedResult<PresenceMessage>> callback)`	Asynchronously get the presence state for this Channel.
`PaginatedResult<PresenceMessage>`	`history(Param[] params)`	Asynchronously obtain presence history for this channel using the REST API.
`void`	`historyAsync(Param[] params, Callback<AsyncPaginatedResult<PresenceMessage>> callback)`	Asynchronously obtain recent history for this channel using the REST API.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Presence
```
public Presence()
```
- Method Detail
  - get
```
public PaginatedResult<PresenceMessage> get(Param[] params)
                                     throws AblyException
```
    Get the presence state for this Channel.
    
    Throws:
    
    AblyException
  - getAsync
```
public void getAsync(Param[] params,
                     Callback<AsyncPaginatedResult<PresenceMessage>> callback)
```
    Asynchronously get the presence state for this Channel.
    
    Parameters:
    
    callback - : on success returns the currently present members.
  - history
```
public PaginatedResult<PresenceMessage> history(Param[] params)
                                         throws AblyException
```
    Asynchronously obtain presence history for this channel using the REST API. The history provided relqtes to all clients of this application, not just this instance.
    
    Parameters:
    
    params - : the request params. See the Ably REST API documentation for more details.
    
    Throws:
    
    AblyException
  - historyAsync
```
public void historyAsync(Param[] params,
                         Callback<AsyncPaginatedResult<PresenceMessage>> callback)
```
    Asynchronously obtain recent history for this channel using the REST API.
    
    Parameters:
    
    params - : the request params. See the Ably REST API
    
    callback -