PollingChannel

Pacchetto	mx.messaging.channels
Classe	public class PollingChannel
Ereditarietà	PollingChannel Channel EventDispatcher Object
Sottoclassi	HTTPChannel, NetConnectionChannel

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 PollingChannel class provides the polling behavior that all polling channels in the messaging system require.

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
		protocol : String [sola lettura] Provides access to the protocol that the channel uses.	Channel
		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
		PollingChannel(id:String = null, uri:String = null) Creates a new PollingChannel instance with the specified id.	PollingChannel
		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 Initiates a poll operation if there are consumers subscribed to this channel, and polling is enabled for this channel.	PollingChannel
		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
		LOGIN_AFTER_DISCONNECT : String = "login-after-disconnect" [statico]	PollingChannel
		PIGGYBACKING_ENABLED : String = "piggybacking-enabled" [statico]	PollingChannel
		POLLING_INTERVAL_LEGACY : String = "polling-interval-seconds" [statico]	PollingChannel
		POLLING_INTERVAL_MILLIS : String = "polling-interval-millis" [statico]	PollingChannel

Descrizione della funzione di costruzione

()

Funzione di costruzione

public function PollingChannel(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

Creates a new PollingChannel instance with the specified id. Once a PollingChannel is connected and begins polling, it will issue a poll request once every three seconds by default.

Note: The PollingChannel type should not be constructed directly. Instead create instances of protocol specific subclasses such as HTTPChannel or AMFChannel that extend it.

Parametri

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

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

Descrizione dei metodi

disablePolling

()

metodo

public function disablePolling():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

Disables polling based on the number of times enablePolling() and disablePolling() have been invoked. If the net result is to disable polling the channel stops polling.

Invoked automatically based upon subscribing or unsubscribing from a remote destination over a PollingChannel.

enablePolling

()

metodo

public function enablePolling():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

Enables polling based on the number of times enablePolling() and disablePolling() have been invoked. If the net result is to enable polling the channel will poll the server on behalf of connected MessageAgents.

Invoked automatically based upon subscribing or unsubscribing from a remote destination over a PollingChannel.

poll

()

metodo

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

Initiates a poll operation if there are consumers subscribed to this channel, and polling is enabled for this channel. Note that this method will not start a new poll if one is currently in progress.

send

()

metodo

override public function send(agent:MessageAgent, message:IMessage):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

Sends the specified message to its target destination. Subclasses must override the internalSend() method to perform the actual send. PollingChannel will wrap outbound messages in poll requests if a poll is not currently outstanding.

Parametri

	`agent:MessageAgent` — The MessageAgent that is sending the message.

	`message:IMessage` — The Message to send.

Genera

InvalidDestinationError — If neither the MessageAgent nor the message specify a destination.

Descrizione delle costanti

LOGIN_AFTER_DISCONNECT

Costante

protected static const LOGIN_AFTER_DISCONNECT:String = "login-after-disconnect"

PIGGYBACKING_ENABLED

Costante

protected static const PIGGYBACKING_ENABLED:String = "piggybacking-enabled"

POLLING_INTERVAL_LEGACY

Costante

protected static const POLLING_INTERVAL_LEGACY:String = "polling-interval-seconds"

POLLING_INTERVAL_MILLIS

Costante

protected static const POLLING_INTERVAL_MILLIS:String = "polling-interval-millis"

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PollingChannel - AS3 BlazeDS LCDS

Classi x

PollingChannel

disablePolling

enablePolling

poll

send

LOGIN_AFTER_DISCONNECT

PIGGYBACKING_ENABLED

POLLING_INTERVAL_LEGACY

POLLING_INTERVAL_MILLIS