HTTPChannel

Pakket	mx.messaging.channels
Klasse	public class HTTPChannel
Overerving	HTTPChannel PollingChannel Channel EventDispatcher Object
Subklassen	SecureHTTPChannel, StreamingHTTPChannel

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

The HTTPChannel class provides the HTTP support for messaging. You can configure this Channel to poll the server at an interval to approximate server push. You can also use this Channel with polling disabled to send RPC messages to remote destinations to invoke their methods.

The HTTPChannel relies on network services native to Flash Player and AIR, and exposed to ActionScript by the URLLoader class. This channel uses URLLoader exclusively, and creates a new URLLoader per request.

Channels are created within the framework using the ServerConfig.getChannel() method. Channels can be constructed directly and assigned to a ChannelSet if desired.

Channels represent a physical connection to a remote endpoint. Channels are shared across destinations by default. This means that a client targetting different destinations may use the same Channel to communicate with these destinations.

When used in polling mode, this Channel polls the server for new messages based on the polling-interval-seconds property in the configuration file, and this can be changed by setting the pollingInterval property. The default value is 3 seconds. To enable polling, the channel must be connected and the polling-enabled property in the configuration file must be set to true, or the pollingEnabled property of the Channel must be set to true.

Openbare eigenschappen

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Overerfde openbare eigenschappen weergeven

	Eigenschap		Gedefinieerd door
		authenticated : Boolean [alleen-lezen] Indicates if this channel is authenticated.	Channel
		channelSets : Array [alleen-lezen] Provides access to the ChannelSets connected to the Channel.	Channel
		connected : Boolean [alleen-lezen] 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 Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie.	Object
		endpoint : String [alleen-lezen] 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 [alleen-lezen] 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 [overschrijven] [alleen-lezen] Returns the protocol for this channel (http).	HTTPChannel
		reconnecting : Boolean [alleen-lezen] Indicates whether this channel is in the process of reconnecting to an alternate endpoint.	Channel
		recordMessageSizes : Boolean [alleen-lezen] Channel property determines the level of performance information injection - whether we inject message sizes or not.	Channel
		recordMessageTimes : Boolean [alleen-lezen] 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

Beschermde eigenschappen

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Overerfde beschermde eigenschappen weergeven

	Eigenschap		Gedefinieerd door
		shouldBeConnected : Boolean [alleen-lezen] Indicates whether this channel should be connected to its endpoint.	Channel

Openbare methoden

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Overerfde openbare methoden weergeven

	Methode		Gedefinieerd door
		HTTPChannel(id:String = null, uri:String = null) Constructor.	HTTPChannel
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt.	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 Verzendt een gebeurtenis naar de gebeurtenisstroom.	EventDispatcher
		enablePolling():void Enables polling based on the number of times enablePolling() and disablePolling() have been invoked.	PollingChannel
		hasEventListener(type:String):Boolean Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis.	EventDispatcher
		hasOwnProperty(name:String):Boolean Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd.	Object
		isPrototypeOf(theClass:Object):Boolean Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven.	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 Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Verwijdert een listener uit het object EventDispatcher.	EventDispatcher
		send(agent:MessageAgent, message:IMessage):void [overschrijven] 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 Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in.	Object
		toLocaleString():String Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies.	Object
		toString():String Retourneert een tekenreeksrepresentatie van het opgegeven object.	Object
		valueOf():Object Retourneert de primitieve waarde van het opgegeven object.	Object
		willTrigger(type:String):Boolean Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis.	EventDispatcher

Beschermde methoden

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Overerfde beschermde methoden weergeven

	Methode		Gedefinieerd door
		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

Gebeurtenissen

Klik voor meer informatie over gebeurtenissen.

Overerfde gebeurtenissen verbergen

Overerfde gebeurtenissen weergeven

	Overzicht	Gedefinieerd door
activate	[uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de besturingssysteemfocus krijgt en actief wordt.	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	[uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de systeemfocus verliest en inactief wordt.	EventDispatcher
message	Dispatched when a channel receives a message from its endpoint.	Channel
propertyChange	Dispatched when a property of the channel changes.	Channel

Beschermde constanten

Overerfde beschermde constanten verbergen

Overerfde beschermde constanten weergeven

	Constante		Gedefinieerd door

Eigenschapdetails

piggybackingEnabled

eigenschap

piggybackingEnabled:Boolean

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

Indicates whether this channel will piggyback poll requests along with regular outbound messages when an outstanding poll is not in progress. This allows the server to piggyback data for the client along with its response to client's message.

Implementatie
public function get piggybackingEnabled():Boolean
public function set piggybackingEnabled(value:Boolean):void

polling

eigenschap

polling:Boolean [alleen-lezen]

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

Reports whether the channel is actively polling.

Implementatie
public function get polling():Boolean

pollingEnabled

eigenschap

pollingEnabled:Boolean

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

Indicates whether this channel is enabled to poll.

Implementatie
public function get pollingEnabled():Boolean
public function set pollingEnabled(value:Boolean):void

pollingInterval

eigenschap

pollingInterval:Number

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

Provides access to the polling interval for this Channel. The value is in milliseconds. This value determines how often this Channel requests messages from the server, to approximate server push.

Implementatie
public function get pollingInterval():Number
public function set pollingInterval(value:Number):void

Gegenereerde uitzondering

ArgumentError — If the pollingInterval is assigned a value of 0 or less.

protocol

eigenschap

protocol:String [alleen-lezen] [overschrijven]

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

Returns the protocol for this channel (http).

Implementatie
override public function get protocol():String

Constructordetails

()

Constructor

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

Taalversie:

ActionScript 3.0

Productversies:

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

Runtimeversies:

Flash Player 9, AIR 1.1

Constructor.

Parameters

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

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

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HTTPChannel - AS3 BlazeDS LCDS

Klassen x

piggybackingEnabled

polling

pollingEnabled

pollingInterval

protocol

HTTPChannel