StreamingHTTPChannel

Pacchetto	mx.messaging.channels
Classe	public class StreamingHTTPChannel
Ereditarietà	StreamingHTTPChannel HTTPChannel PollingChannel Channel EventDispatcher Object
Sottoclassi	SecureStreamingHTTPChannel

Versione linguaggio:

ActionScript 3.0

Versioni prodotto:

BlazeDS 4, Adobe Digital Enterprise Platform Data Services per Java EE 3

Versioni runtime:

Flash Player 9, AIR 1.1

The StreamingHTTPChannel class provides support for messaging and offers a different push model than the base HTTPChannel. Rather than polling for data from the server, the streaming channel opens an internal HTTP connection to the server that is held open to allow the server to stream data down to the client with no poll overhead.

Messages sent by this channel to the server are sent using a URLLoader which uses an HTTP connection internally for the duration of the operation. Once the message is sent and an acknowledgement or fault is returned the HTTP connection used by URLLoader is released by the channel. These client-to-server messages are not sent over the streaming HTTP connection that the channel holds open to receive server pushed data.

Although this class extends the base HTTPChannel to inherit the regular HTTP handling, it does not support polling.

Proprietà pubbliche

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	Proprietà		Definito da
		authenticated : Boolean [sola lettura] Indicates if this channel is authenticated.	Channel
		channelSets : Array [sola lettura] Provides access to the ChannelSets connected to the Channel.	Channel
		connected : Boolean [sola lettura] Indicates whether this channel has established a connection to the remote destination.	Channel
		connectTimeout : int Provides access to the connect timeout in seconds for the channel.	Channel
		constructor : Object Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto.	Object
		endpoint : String [sola lettura] Provides access to the endpoint for this channel.	Channel
		failoverURIs : Array Provides access to the set of endpoint URIs that this channel can attempt to failover to if the endpoint is clustered.	Channel
		id : String Provides access to the id of this channel.	Channel
		piggybackingEnabled : Boolean Indicates whether this channel will piggyback poll requests along with regular outbound messages when an outstanding poll is not in progress.	HTTPChannel
		polling : Boolean [sola lettura] Reports whether the channel is actively polling.	HTTPChannel
		pollingEnabled : Boolean Indicates whether this channel is enabled to poll.	HTTPChannel
		pollingInterval : Number Provides access to the polling interval for this Channel.	HTTPChannel
		protocol : String [override] [sola lettura] Returns the protocol for this channel (http).	HTTPChannel
		reconnecting : Boolean [sola lettura] Indicates whether this channel is in the process of reconnecting to an alternate endpoint.	Channel
		recordMessageSizes : Boolean [sola lettura] Channel property determines the level of performance information injection - whether we inject message sizes or not.	Channel
		recordMessageTimes : Boolean [sola lettura] Channel property determines the level of performance information injection - whether we inject timestamps or not.	Channel
		requestTimeout : int Provides access to the default request timeout in seconds for the channel.	Channel
		uri : String Provides access to the URI used to create the whole endpoint URI for this channel.	Channel

Proprietà protette

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	Proprietà		Definito da
		shouldBeConnected : Boolean [sola lettura] Indicates whether this channel should be connected to its endpoint.	Channel

Metodi pubblici

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	Metodo		Definito da
		StreamingHTTPChannel(id:String = null, uri:String = null) Constructor.	StreamingHTTPChannel
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registra un oggetto listener di eventi con un oggetto EventDispatcher, in modo che il listener riceva la notifica di un evento.	EventDispatcher
		applySettings(settings:XML):void Subclasses should override this method to apply any settings that may be necessary for an individual channel.	Channel
		connect(channelSet:ChannelSet):void Connects the ChannelSet to the Channel.	Channel
		disablePolling():void Disables polling based on the number of times enablePolling() and disablePolling() have been invoked.	PollingChannel
		disconnect(channelSet:ChannelSet):void Disconnects the ChannelSet from the Channel.	Channel
		dispatchEvent(event:Event):Boolean Invia un evento nel flusso di eventi.	EventDispatcher
		enablePolling():void Enables polling based on the number of times enablePolling() and disablePolling() have been invoked.	PollingChannel
		hasEventListener(type:String):Boolean Verifica se per l'oggetto EventDispatcher sono presenti listener registrati per un tipo specifico di evento.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indica se per un oggetto è definita una proprietà specifica.	Object
		isPrototypeOf(theClass:Object):Boolean Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro.	Object
		logout(agent:MessageAgent):void Sends a CommandMessage to the server to logout if the Channel is connected.	Channel
		poll():void [override] Polling is not supported by this channel.	StreamingHTTPChannel
		propertyIsEnumerable(name:String):Boolean Indica se la proprietà specificata esiste ed è enumerabile.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Rimuove un listener dall'oggetto EventDispatcher.	EventDispatcher
		send(agent:MessageAgent, message:IMessage):void [override] Sends the specified message to its target destination.	PollingChannel
		setCredentials(credentials:String, agent:MessageAgent = null, charset:String = null):void Sets the credentials to the specified value.	Channel
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche.	Object
		toLocaleString():String Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate.	Object
		toString():String Restituisce la rappresentazione in formato stringa dell'oggetto specificato.	Object
		valueOf():Object Restituisce il valore di base dell'oggetto specificato.	Object
		willTrigger(type:String):Boolean Verifica se un listener di eventi è registrato con questo oggetto EventDispatcher o qualsiasi suo antenato per il tipo di evento specificato.	EventDispatcher

Metodi protetti

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	Metodo		Definito da
		applyClientLoadBalancingSettings(props:XML):void Applies the client load balancing urls if they exists.	Channel
		connectFailed(event:ChannelFaultEvent):void Processes a failed internal connect and dispatches the FAULT event for the channel.	Channel
		connectSuccess():void Processes a successful internal connect and dispatches the CONNECT event for the Channel.	Channel
		connectTimeoutHandler(event:flash.events:TimerEvent):void Handles a connect timeout by dispatching a ChannelFaultEvent.	Channel
		disconnectFailed(event:ChannelFaultEvent):void Processes a failed internal disconnect and dispatches the FAULT event for the channel.	Channel
		disconnectSuccess(rejected:Boolean = false):void Processes a successful internal disconnect and dispatches the DISCONNECT event for the Channel.	Channel
		flexClientWaitHandler(event:PropertyChangeEvent):void Handles a change to the guard condition for managing initial Channel connect for the application.	Channel
		getMessageResponder(agent:MessageAgent, message:IMessage):MessageResponder Returns the appropriate MessageResponder for the Channel's send() method.	Channel
		internalConnect():void Connects the Channel to its endpoint.	Channel
		internalDisconnect(rejected:Boolean = false):void Disconnects the Channel from its endpoint.	Channel
		internalSend(messageResponder:MessageResponder):void Sends the Message out over the Channel and routes the response to the responder.	Channel

Eventi

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	Riepilogo	Definito da
activate	[evento di trasmissione] Inviato quando Flash Player o l'applicazione AIR ottiene lo stato di attivazione del sistema operativo ed entra nello stato attivo.	EventDispatcher
channelConnect	Dispatched after the channel has connected to its endpoint.	Channel
channelDisconnect	Dispatched after the channel has disconnected from its endpoint.	Channel
channelFault	Dispatched after the channel has faulted.	Channel
deactivate	[evento di trasmissione] Inviato quando Flash Player o l'applicazione AIR perde l'attivazione del sistema operativo e sta entrando nello stato inattivo.	EventDispatcher
message	Dispatched when a channel receives a message from its endpoint.	Channel
propertyChange	Dispatched when a property of the channel changes.	Channel

Costanti protette

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	Costante		Definito da

Descrizione della funzione di costruzione

()

Funzione di costruzione

public function StreamingHTTPChannel(id:String = null, uri:String = null)

Versione linguaggio:

ActionScript 3.0

Versioni prodotto:

BlazeDS 4, Adobe Digital Enterprise Platform Data Services per Java EE 3

Versioni runtime:

Flash Player 9, AIR 1.1

Constructor.

Parametri

	`id:String` (default = `null`) — The id of this Channel.

	`uri:String` (default = `null`) — The uri for this Channel.

Descrizione dei metodi

poll

()

metodo

override public function poll():void

Versione linguaggio:

ActionScript 3.0

Versioni prodotto:

BlazeDS 4, Adobe Digital Enterprise Platform Data Services per Java EE 3

Versioni runtime:

Flash Player 9, AIR 1.1

Polling is not supported by this channel.

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StreamingHTTPChannel - AS3 BlazeDS LCDS

Classi x

StreamingHTTPChannel

poll