PollingChannel

套件	mx.messaging.channels
類別	public class PollingChannel
繼承	PollingChannel Channel EventDispatcher Object
子類別	HTTPChannel, NetConnectionChannel

語言版本:

ActionScript 3.0

產品版本:

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

執行階段版本:

Flash Player 9, AIR 1.1

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

公用屬性

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	屬性		定義自
		authenticated : Boolean [唯讀] Indicates if this channel is authenticated.	Channel
		channelSets : Array [唯讀] Provides access to the ChannelSets connected to the Channel.	Channel
		connected : Boolean [唯讀] 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 類別物件的參照或是特定物件實體的建構函數。	Object
		endpoint : String [唯讀] 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 [唯讀] Provides access to the protocol that the channel uses.	Channel
		reconnecting : Boolean [唯讀] Indicates whether this channel is in the process of reconnecting to an alternate endpoint.	Channel
		recordMessageSizes : Boolean [唯讀] Channel property determines the level of performance information injection - whether we inject message sizes or not.	Channel
		recordMessageTimes : Boolean [唯讀] 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

保護屬性

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	屬性		定義自
		shouldBeConnected : Boolean [唯讀] Indicates whether this channel should be connected to its endpoint.	Channel

公用方法

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	方法		定義自
		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 會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。	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 會將事件傳送到事件流程。	EventDispatcher
		enablePolling():void Enables polling based on the number of times enablePolling() and disablePolling() have been invoked.	PollingChannel
		hasEventListener(type:String):Boolean 會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。	EventDispatcher
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	Object
		isPrototypeOf(theClass:Object):Boolean 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	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 指出指定的屬性是否存在，以及是否可列舉。	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void 會從 EventDispatcher 物件移除偵聽程式。	EventDispatcher
		send(agent:MessageAgent, message:IMessage):void [覆寫] 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 為迴圈作業設定動態屬性的可用性。	Object
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 會傳回指定之物件的字串形式。	Object
		valueOf():Object 會傳回指定之物件的基本值。	Object
		willTrigger(type:String):Boolean 檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。	EventDispatcher

保護方法

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	方法		定義自
		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

事件

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	摘要	定義自
activate	[廣播事件] 當 Flash Player 或 AIR 應用程式取得作業系統焦點並成為作用中時傳送。	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	[廣播事件] 當 Flash Player 或 AIR 應用程式失去作業系統焦點並成為非作用中時傳送。	EventDispatcher
message	Dispatched when a channel receives a message from its endpoint.	Channel
propertyChange	Dispatched when a property of the channel changes.	Channel

保護常數

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	常數		定義自
		LOGIN_AFTER_DISCONNECT : String = "login-after-disconnect" [靜態]	PollingChannel
		PIGGYBACKING_ENABLED : String = "piggybacking-enabled" [靜態]	PollingChannel
		POLLING_INTERVAL_LEGACY : String = "polling-interval-seconds" [靜態]	PollingChannel
		POLLING_INTERVAL_MILLIS : String = "polling-interval-millis" [靜態]	PollingChannel

建構函式詳細資料

()

建構函式

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

語言版本:

ActionScript 3.0

產品版本:

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

執行階段版本:

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.

參數

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

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

方法詳細資訊

disablePolling

()

方法

public function disablePolling():void

語言版本:

ActionScript 3.0

產品版本:

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

執行階段版本:

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

()

方法

public function enablePolling():void

語言版本:

ActionScript 3.0

產品版本:

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

執行階段版本:

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

()

方法

public function poll():void

語言版本:

ActionScript 3.0

產品版本:

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

執行階段版本:

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

()

方法

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

語言版本:

ActionScript 3.0

產品版本:

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

執行階段版本:

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.

參數

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

	`message:IMessage` — The Message to send.

擲回值

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

常數詳細資訊

LOGIN_AFTER_DISCONNECT

常數

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

PIGGYBACKING_ENABLED

常數

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

POLLING_INTERVAL_LEGACY

常數

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

POLLING_INTERVAL_MILLIS

常數

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

法律聲明 | 線上隱私權政策

PollingChannel - AS3 BlazeDS LCDS

類別 x

PollingChannel

disablePolling

enablePolling

poll

send

LOGIN_AFTER_DISCONNECT

PIGGYBACKING_ENABLED

POLLING_INTERVAL_LEGACY

POLLING_INTERVAL_MILLIS