Package io.ably.lib.types

Class PresenceMessage

java.lang.Object

io.ably.lib.types.BaseMessage

io.ably.lib.types.PresenceMessage

All Implemented Interfaces:

Cloneable

public class PresenceMessage
extends BaseMessage
implements Cloneable

A class representing an individual presence update to be sent or received via the Ably Realtime service.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	PresenceMessage.Action	Describes the possible actions members in the presence set can emit.
static class	PresenceMessage.ActionSerializer
static class	PresenceMessage.Serializer

Field Summary

Fields

Modifier and Type	Field	Description
PresenceMessage.Action	action	The type of PresenceMessage.Action the PresenceMessage is for.

Fields inherited from class io.ably.lib.types.BaseMessage

clientId, connectionId, data, encoding, id, timestamp

Constructor Summary

Constructors

Constructor	Description
PresenceMessage()	Default constructor
PresenceMessage(PresenceMessage.Action action, String clientId)	Construct a PresenceMessage from an Action and clientId
PresenceMessage(PresenceMessage.Action action, String clientId, Object data)	Generic constructor

Method Summary

Modifier and Type	Method	Description
Object	clone()
static PresenceMessage	fromEncoded(com.google.gson.JsonObject messageJsonObject, ChannelOptions channelOptions)	Decodes and decrypts a deserialized PresenceMessage-like object using the cipher in ChannelOptions.
static PresenceMessage	fromEncoded(String messageJson, ChannelOptions channelOptions)	Decodes and decrypts a deserialized PresenceMessage-like object using the cipher in ChannelOptions.
static PresenceMessage[]	fromEncodedArray(com.google.gson.JsonArray presenceMsgArray, ChannelOptions channelOptions)	Decodes and decrypts an array of deserialized PresenceMessage-like object using the cipher in ChannelOptions.
static PresenceMessage[]	fromEncodedArray(String presenceMsgArray, ChannelOptions channelOptions)	Decodes and decrypts an array of deserialized PresenceMessage-like object using the cipher in ChannelOptions.
String	memberKey()	Combines clientId and connectionId to ensure that multiple connected clients with an identical clientId are uniquely identifiable.
String	toString()	Generate a String summary of this PresenceMessage

Methods inherited from class io.ably.lib.types.BaseMessage

countFields, decode, decode, encode, getDetails, read, readInt, readLong, readString, toJsonObject

Methods inherited from class java.lang.Object

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

Field Details

action

public PresenceMessage.Action action

The type of PresenceMessage.Action the PresenceMessage is for.

Spec: TP3b

Constructor Details

PresenceMessage

public PresenceMessage()

Default constructor

PresenceMessage

public PresenceMessage(PresenceMessage.Action action,
 String clientId)

Construct a PresenceMessage from an Action and clientId

Parameters:

action -

clientId -

PresenceMessage

public PresenceMessage(PresenceMessage.Action action,
 String clientId,
 Object data)

Generic constructor

Parameters:

action -

clientId -

data -

Method Details

toString

public String toString()

Generate a String summary of this PresenceMessage

Overrides:

toString in class Object

Returns:

string

clone

public Object clone()

Overrides:

clone in class Object

fromEncoded

public static PresenceMessage fromEncoded(com.google.gson.JsonObject messageJsonObject,
 ChannelOptions channelOptions)
                                   throws MessageDecodeException

Decodes and decrypts a deserialized PresenceMessage-like object using the cipher in ChannelOptions. Any residual transforms that cannot be decoded or decrypted will be in the encoding property. Intended for users receiving messages from a source other than a REST or Realtime channel (for example a queue) to avoid having to parse the encoding string.

Spec: TP4

Parameters:

messageJsonObject - The deserialized PresenceMessage-like object to decode and decrypt.

channelOptions - A ChannelOptions object containing the cipher.

Returns:

A PresenceMessage object.

Throws:

MessageDecodeException

fromEncoded

public static PresenceMessage fromEncoded(String messageJson,
 ChannelOptions channelOptions)
                                   throws MessageDecodeException

Decodes and decrypts a deserialized PresenceMessage-like object using the cipher in ChannelOptions. Any residual transforms that cannot be decoded or decrypted will be in the encoding property. Intended for users receiving messages from a source other than a REST or Realtime channel (for example a queue) to avoid having to parse the encoding string.

Spec: TP4

Parameters:

messageJson - The deserialized PresenceMessage-like object to decode and decrypt.

channelOptions - A ChannelOptions object containing the cipher.

Returns:

A PresenceMessage object.

Throws:

MessageDecodeException

fromEncodedArray

public static PresenceMessage[] fromEncodedArray(com.google.gson.JsonArray presenceMsgArray,
 ChannelOptions channelOptions)
                                          throws MessageDecodeException

Decodes and decrypts an array of deserialized PresenceMessage-like object using the cipher in ChannelOptions. Any residual transforms that cannot be decoded or decrypted will be in the encoding property. Intended for users receiving messages from a source other than a REST or Realtime channel (for example a queue) to avoid having to parse the encoding string.

Spec: TP4

Parameters:

presenceMsgArray - An array of deserialized PresenceMessage-like objects to decode and decrypt.

channelOptions - A ChannelOptions object containing the cipher.

Returns:

An array of PresenceMessage object.

Throws:

MessageDecodeException

fromEncodedArray

public static PresenceMessage[] fromEncodedArray(String presenceMsgArray,
 ChannelOptions channelOptions)
                                          throws MessageDecodeException

Decodes and decrypts an array of deserialized PresenceMessage-like object using the cipher in ChannelOptions. Any residual transforms that cannot be decoded or decrypted will be in the encoding property. Intended for users receiving messages from a source other than a REST or Realtime channel (for example a queue) to avoid having to parse the encoding string.

Spec: TP4

Parameters:

presenceMsgArray - An array of deserialized PresenceMessage-like objects to decode and decrypt.

channelOptions - A ChannelOptions object containing the cipher.

Returns:

An array of PresenceMessage object.

Throws:

MessageDecodeException

memberKey

public String memberKey()

Combines clientId and connectionId to ensure that multiple connected clients with an identical clientId are uniquely identifiable. A string function that returns the combined clientId and connectionId.

Spec: TP3h

Returns:

A combination of clientId and connectionId.