Message (CometD :: Java 5.0.21 API)

All Superinterfaces:

Map<String,Object>

All Known Subinterfaces:

Message.Mutable, ServerMessage, ServerMessage.Mutable

All Known Implementing Classes:

HashMapMessage, ServerMessageImpl
```
public interface Message
extends Map<String,Object>
```
The Bayeux protocol exchange information by means of messages.

This interface represents the API of a Bayeux message, and consists mainly of convenience methods to access the known fields of the message map.

This interface comes in both an immutable and mutable versions. Mutability may be deeply enforced by an implementation, so that it is not correct to cast a passed Message, to a Message.Mutable, even if the implementation allows this.

Nested Class Summary

Nested Classes
Modifier and Type Interface and Description

static interface Message.Mutable
The mutable version of a Message
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K,V>

Nested Classes
Modifier and Type	Interface and Description
`static interface`	`Message.Mutable` The mutable version of a `Message`

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`ADVICE_FIELD`
`static String`	`CHANNEL_FIELD`
`static String`	`CLIENT_ID_FIELD`
`static String`	`CONNECTION_TYPE_FIELD`
`static String`	`DATA_FIELD`
`static String`	`ERROR_FIELD`
`static String`	`EXT_FIELD`
`static String`	`ID_FIELD`
`static String`	`INTERVAL_FIELD`
`static String`	`MAX_INTERVAL_FIELD`
`static String`	`MIN_VERSION_FIELD`
`static String`	`RECONNECT_FIELD`
`static String`	`RECONNECT_HANDSHAKE_VALUE`
`static String`	`RECONNECT_NONE_VALUE`
`static String`	`RECONNECT_RETRY_VALUE`
`static String`	`SUBSCRIPTION_FIELD`
`static String`	`SUCCESSFUL_FIELD`
`static String`	`SUPPORTED_CONNECTION_TYPES_FIELD`
`static String`	`TIMEOUT_FIELD`
`static String`	`TIMESTAMP_FIELD`
`static String`	`TRANSPORT_FIELD`
`static String`	`VERSION_FIELD`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`Map<String,Object>`	`getAdvice()` Convenience method to retrieve the `ADVICE_FIELD`
`String`	`getChannel()` Convenience method to retrieve the `CHANNEL_FIELD`.
`ChannelId`	`getChannelId()` Convenience method to retrieve the `CHANNEL_FIELD`.
`String`	`getClientId()` Convenience method to retrieve the `CLIENT_ID_FIELD`
`Object`	`getData()` Convenience method to retrieve the `DATA_FIELD`
`Map<String,Object>`	`getDataAsMap()`
`Map<String,Object>`	`getExt()` Convenience method to retrieve the `EXT_FIELD`
`String`	`getId()` Convenience method to retrieve the `ID_FIELD`
`boolean`	`isMeta()` A messages that has a meta channel is dubbed a "meta message".
`boolean`	`isPublishReply()` Publish message replies contain the "successful" field
`boolean`	`isSuccessful()` Convenience method to retrieve the `SUCCESSFUL_FIELD`

Methods inherited from interface java.util.Map
clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

- Field Detail
  - CLIENT_ID_FIELD
```
static final String CLIENT_ID_FIELD
```
    See Also:
    
    Constant Field Values
  - DATA_FIELD
```
static final String DATA_FIELD
```
    See Also:
    
    Constant Field Values
  - CHANNEL_FIELD
```
static final String CHANNEL_FIELD
```
    See Also:
    
    Constant Field Values
  - ID_FIELD
```
static final String ID_FIELD
```
    See Also:
    
    Constant Field Values
  - ERROR_FIELD
```
static final String ERROR_FIELD
```
    See Also:
    
    Constant Field Values
  - TIMESTAMP_FIELD
```
static final String TIMESTAMP_FIELD
```
    See Also:
    
    Constant Field Values
  - TRANSPORT_FIELD
```
static final String TRANSPORT_FIELD
```
    See Also:
    
    Constant Field Values
  - ADVICE_FIELD
```
static final String ADVICE_FIELD
```
    See Also:
    
    Constant Field Values
  - SUCCESSFUL_FIELD
```
static final String SUCCESSFUL_FIELD
```
    See Also:
    
    Constant Field Values
  - SUBSCRIPTION_FIELD
```
static final String SUBSCRIPTION_FIELD
```
    See Also:
    
    Constant Field Values
  - EXT_FIELD
```
static final String EXT_FIELD
```
    See Also:
    
    Constant Field Values
  - CONNECTION_TYPE_FIELD
```
static final String CONNECTION_TYPE_FIELD
```
    See Also:
    
    Constant Field Values
  - VERSION_FIELD
```
static final String VERSION_FIELD
```
    See Also:
    
    Constant Field Values
  - MIN_VERSION_FIELD
```
static final String MIN_VERSION_FIELD
```
    See Also:
    
    Constant Field Values
  - SUPPORTED_CONNECTION_TYPES_FIELD
```
static final String SUPPORTED_CONNECTION_TYPES_FIELD
```
    See Also:
    
    Constant Field Values
  - RECONNECT_FIELD
```
static final String RECONNECT_FIELD
```
    See Also:
    
    Constant Field Values
  - INTERVAL_FIELD
```
static final String INTERVAL_FIELD
```
    See Also:
    
    Constant Field Values
  - MAX_INTERVAL_FIELD
```
static final String MAX_INTERVAL_FIELD
```
    See Also:
    
    Constant Field Values
  - TIMEOUT_FIELD
```
static final String TIMEOUT_FIELD
```
    See Also:
    
    Constant Field Values
  - RECONNECT_RETRY_VALUE
```
static final String RECONNECT_RETRY_VALUE
```
    See Also:
    
    Constant Field Values
  - RECONNECT_HANDSHAKE_VALUE
```
static final String RECONNECT_HANDSHAKE_VALUE
```
    See Also:
    
    Constant Field Values
  - RECONNECT_NONE_VALUE
```
static final String RECONNECT_NONE_VALUE
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getAdvice
```
Map<String,Object> getAdvice()
```
    Convenience method to retrieve the ADVICE_FIELD
    
    Returns:
    
    the advice of the message
  - getChannel
```
String getChannel()
```
    Convenience method to retrieve the CHANNEL_FIELD. Bayeux message always have a non null channel.
    
    Returns:
    
    the channel of the message
  - getChannelId
```
ChannelId getChannelId()
```
    Convenience method to retrieve the CHANNEL_FIELD. Bayeux message always have a non null channel.
    
    Returns:
    
    the channel of the message
  - getClientId
```
String getClientId()
```
    Convenience method to retrieve the CLIENT_ID_FIELD
    
    Returns:
    
    the client id of the message
  - getData
```
Object getData()
```
    Convenience method to retrieve the DATA_FIELD
    
    Returns:
    
    the data of the message
    
    See Also:
    
    getDataAsMap()
  - isMeta
```
boolean isMeta()
```
    A messages that has a meta channel is dubbed a "meta message".
    
    Returns:
    
    whether the channel's message is a meta channel
  - isPublishReply
```
boolean isPublishReply()
```
    Publish message replies contain the "successful" field
    
    Returns:
    
    whether this message is a publish reply (as opposed to a published message)
  - isSuccessful
```
boolean isSuccessful()
```
    Convenience method to retrieve the SUCCESSFUL_FIELD
    
    Returns:
    
    whether the message is successful
  - getDataAsMap
```
Map<String,Object> getDataAsMap()
```
    Returns:
    
    the data of the message as a map
    
    See Also:
    
    getData()
  - getExt
```
Map<String,Object> getExt()
```
    Convenience method to retrieve the EXT_FIELD
    
    Returns:
    
    the ext of the message
  - getId
```
String getId()
```
    Convenience method to retrieve the ID_FIELD
    
    Returns:
    
    the id of the message

Interface Message

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Field Summary

Method Summary

Methods inherited from interface java.util.Map

Field Detail

CLIENT_ID_FIELD

DATA_FIELD

CHANNEL_FIELD

ID_FIELD

ERROR_FIELD

TIMESTAMP_FIELD

TRANSPORT_FIELD

ADVICE_FIELD

SUCCESSFUL_FIELD

SUBSCRIPTION_FIELD

EXT_FIELD

CONNECTION_TYPE_FIELD

VERSION_FIELD

MIN_VERSION_FIELD

SUPPORTED_CONNECTION_TYPES_FIELD

RECONNECT_FIELD

INTERVAL_FIELD

MAX_INTERVAL_FIELD

TIMEOUT_FIELD

RECONNECT_RETRY_VALUE

RECONNECT_HANDSHAKE_VALUE

RECONNECT_NONE_VALUE

Method Detail

getAdvice

getChannel

getChannelId

getClientId

getData

isMeta

isPublishReply

isSuccessful

getDataAsMap

getExt

getId