mx.messaging.ChannelSet (Flex 3)

	Propriedade	Definido por
		channelIds : Array [read-only] The ids of the Channels used by the ChannelSet.	ChannelSet
		channels : Array Provides access to the Channels in the ChannelSet.	ChannelSet
		clustered : Boolean Indicates whether the ChannelSet targets a clustered destination.	ChannelSet
		connected : Boolean [read-only] Indicates whether the ChannelSet is connected.	ChannelSet
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		currentChannel : Channel [read-only] Returns the current Channel for the ChannelSet.	ChannelSet
		messageAgents : Array [read-only] Provides access to the set of MessageAgents that use this ChannelSet.	ChannelSet
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object

	Método	Definido por
		ChannelSet(channelIds:Array = null, clusteredWithURLLoadBalancing:Boolean = false) Constructs a ChannelSet.	ChannelSet
		addChannel(channel:Channel):void Adds a Channel to the ChannelSet.	ChannelSet
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.	EventDispatcher
		channelConnectHandler(event:ChannelEvent):void Handles a CONNECT ChannelEvent and redispatches the event.	ChannelSet
		channelDisconnectHandler(event:ChannelEvent):void Handles a DISCONNECT ChannelEvent and redispatches the event.	ChannelSet
		channelFaultHandler(event:ChannelFaultEvent):void Handles a ChannelFaultEvent and redispatches the event.	ChannelSet
		connect(agent:MessageAgent):void Connects a MessageAgent to the ChannelSet.	ChannelSet
		disconnect(agent:MessageAgent):void Disconnects a MessageAgent from the ChannelSet.	ChannelSet
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		logout(agent:MessageAgent):void Clears the stored credentials and calls logout on every channel in the set.	ChannelSet
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeChannel(channel:Channel):void Removes a Channel from the ChannelSet.	ChannelSet
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		send(agent:MessageAgent, message:IMessage):void Sends a message from a MessageAgent over the currently connected Channel.	ChannelSet
		setCredentials(credentials:String, agent:MessageAgent, charset:String = null):void Stores the credentials and passes them through to every connected channel.	ChannelSet
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toString():String Returns a String containing the ids of the Channels in the ChannelSet.	ChannelSet
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

Descrição	Definido por
activate	Dispatched when Flash Player or the and AIR application gains operating system focus and becomes active.	EventDispatcher
channelConnect	Dispatched after a Channel in the ChannelSet has connected to its endpoint.	ChannelSet
channelDisconnect	Dispatched after a Channel in the ChannelSet has disconnected from its endpoint.	ChannelSet
channelFault	Dispatched after a Channel in the ChannelSet has faulted.	ChannelSet
deactivate	Dispatched when Flash Player loses operating system focus and is becoming inactive.	EventDispatcher
propertyChange	Dispatched when a property of the ChannelSet changes.	ChannelSet

channelIds:Array [read-only]

The ids of the Channels used by the ChannelSet.

Implementação
public function get channelIds():Array

channels:Array [read-write]

Provides access to the Channels in the ChannelSet. This property may be used to assign a set of channels at once or channels may be added directly to the ChannelSet via addChannel() individually. If this ChannelSet is configured automatically the individual channels are created lazily and added to this property as needed.

Implementação
public function get channels():Array
public function set channels(value:Array):void

Throws

IllegalOperationError — If the ChannelSet is configured, assigning to this property is not allowed.

clustered:Boolean [read-write]

Indicates whether the ChannelSet targets a clustered destination. If true, upon a successful connection the ChannelSet will query the destination for all clustered endpoints for its Channels and will assign failoverURIs to them. Channel ids are used to assign failoverURIs to the proper Channel instances so this requires that all Channels in the ChannelSet have non-null ids and an Error will be thrown when this property is set to true if this is not the case. If the ChannelSet is not using url load balancing on the client this property should not be set to true.

Implementação
public function get clustered():Boolean
public function set clustered(value:Boolean):void

connected:Boolean [read-only]

Indicates whether the ChannelSet is connected.

This property can be used as the source for data binding.

Implementação
public function get connected():Boolean

currentChannel:Channel [read-only]

Returns the current Channel for the ChannelSet.

Implementação
public function get currentChannel():Channel

messageAgents:Array [read-only]

Provides access to the set of MessageAgents that use this ChannelSet.

Implementação
public function get messageAgents():Array

public function ChannelSet(channelIds:Array = null, clusteredWithURLLoadBalancing:Boolean = false)

Constructs a ChannelSet. If the channelIds argument is provided, the ChannelSet will use automatically configured Channels obtained via ServerConfig.getChannel() to reach a destination. Attempting to manually assign Channels to a ChannelSet that uses configured Channels is not allowed.

If the channelIds argument is not provided or is null, Channels must be manually created and added to the ChannelSet in order to connect and send messages.

If the ChannelSet is clustered using url-load-balancing (where each server declares a unique RTMP or HTTP URL and the client fails over from one URL to the next), the first time that a Channel in the ChannelSet successfully connects the ChannelSet will automatically make a request for all of the endpoints across the cluster for all member Channels and will assign these failover URLs to each respective Channel. This allows Channels in the ChannelSet to failover individually, and when failover options for a specific Channel are exhausted the ChannelSet will advance to the next Channel in the set to attempt to reconnect.

Regardless of clustering, if a Channel cannot connect or looses connectivity, the ChannelSet will advance to its next available Channel and attempt to reconnect. This allows the ChannelSet to hunt through Channels that use different protocols, ports, etc., in search of one that can connect to its endpoint successfully.

Parâmetros

	`channelIds:Array` (default = `null`) — The ids of configured Channels obtained from ServerConfig for this ChannelSet to use. If null, Channels must be manually added to the ChannelSet.

	`clusteredWithURLLoadBalancing:Boolean` (default = `false`) — True if the Channels in the ChannelSet are clustered using url load balancing.

public function addChannel(channel:Channel):void

Adds a Channel to the ChannelSet. A Channel with a null id cannot be added to the ChannelSet if the ChannelSet targets a clustered destination.

Parâmetros

channel:Channel — The Channel to add.

Throws

IllegalOperationError — If the ChannelSet is configured, adding a Channel is not supported. This error is also thrown if the ChannelSet's clustered property is true but the Channel has a null id.

public function channelConnectHandler(event:ChannelEvent):void

Handles a CONNECT ChannelEvent and redispatches the event.

Parâmetros

event:ChannelEvent — The ChannelEvent.

public function channelDisconnectHandler(event:ChannelEvent):void

Handles a DISCONNECT ChannelEvent and redispatches the event.

Parâmetros

event:ChannelEvent — The ChannelEvent.

public function channelFaultHandler(event:ChannelFaultEvent):void

Handles a ChannelFaultEvent and redispatches the event.

Parâmetros

event:ChannelFaultEvent — The ChannelFaultEvent.

public function connect(agent:MessageAgent):void

Connects a MessageAgent to the ChannelSet. Once connected, the agent can use the ChannelSet to send messages.

Parâmetros

agent:MessageAgent — The MessageAgent to connect.

public function disconnect(agent:MessageAgent):void

Disconnects a MessageAgent from the ChannelSet.

Parâmetros

agent:MessageAgent — The MessageAgent to disconnect.

public function logout(agent:MessageAgent):void

Clears the stored credentials and calls logout on every channel in the set.

Parâmetros

agent:MessageAgent — The MessageAgent that is initiating the logout.

public function removeChannel(channel:Channel):void

Removes a Channel from the ChannelSet. If the Channel to remove is currently connected and being used by the ChannelSet, it is disconnected as well as removed.

Parâmetros

channel:Channel — The Channel to remove.

Throws

IllegalOperationError — If the ChannelSet is configured, removing a Channel is not supported.

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

Sends a message from a MessageAgent over the currently connected Channel.

Parâmetros

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

	`message:IMessage` — The Message to send.

Throws

NoChannelAvailableError — If the ChannelSet has no internal Channels to use.

public function setCredentials(credentials:String, agent:MessageAgent, charset:String = null):void

Stores the credentials and passes them through to every connected channel.

Parâmetros

	`credentials:String` — The credentials for the MessageAgent.

	`agent:MessageAgent` — The MessageAgent that is setting the credentials.

	`charset:String` (default = `null`) — The character set encoding used while encoding the credentials. The default is null, which implies the legacy encoding of ISO-Latin-1.

Throws

IllegalOperationError — in two situations; if credentials have already been set and an authentication is in progress with the remote detination, or if authenticated and the credentials specified don't match the currently authenticated credentials.

public override function toString():String

Returns a String containing the ids of the Channels in the ChannelSet.

Retorna

String — String representation of the ChannelSet.

Event Object Type: mx.messaging.events.ChannelEvent
ChannelEvent.type property = mx.messaging.events.ChannelEvent.CONNECT

Dispatched after a Channel in the ChannelSet has connected to its endpoint.

The CONNECT event type; indicates that the Channel connected to its endpoint.

The value of this constant is "channelConnect".

The properties of the event object have the following values:

Propriedade	Valor
`bubbles`	false
`cancelable`	false
`channel`	The channel that generated this event.
`currentTarget`	The Object that defines the event listener that handles the event. For exemplo, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.
`reconnecting`	Indicates whether the channel that generated this event is reconnecting.
`rejected`	Indicates whether the channel that generated this event was rejected. This would be true in the event that the channel has been disconnected due to inactivity and should not attempt to failover or connect on an alternate channel.

Event Object Type: mx.messaging.events.ChannelEvent
ChannelEvent.type property = mx.messaging.events.ChannelEvent.DISCONNECT

Dispatched after a Channel in the ChannelSet has disconnected from its endpoint.

The DISCONNECT event type; indicates that the Channel disconnected from its endpoint.

The value of this constant is "channelDisconnect".

The properties of the event object have the following values:

Propriedade	Valor
`bubbles`	false
`cancelable`	false
`channel`	The channel that generated this event.
`currentTarget`	The Object that defines the event listener that handles the event. For exemplo, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.
`reconnecting`	Indicates whether the channel that generated this event is reconnecting.
`rejected`	Indicates whether the channel that generated this event was rejected. This would be true in the event that the channel has been disconnected due to inactivity and should not attempt to failover or connect on an alternate channel.

Event Object Type: mx.messaging.events.ChannelFaultEvent
ChannelFaultEvent.type property = mx.messaging.events.ChannelFaultEvent.FAULT

Dispatched after a Channel in the ChannelSet has faulted.

The FAULT event type; indicates that the Channel faulted.

The value of this constant is "channelFault".

The properties of the event object have the following values:

Propriedade	Valor
`bubbles`	false
`cancelable`	false
`channel`	The Channel that generated this event.
`currentTarget`	The Object that defines the event listener that handles the event. For exemplo, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`faultCode`	Provides destination-specific details of the failure.
`faultDetail`	Provides access to the destination-specific reason for the failure.
`faultString`	Provides access to the underlying reason for the failure if the channel did not raise the failure itself.
`reconnecting`	Indicates whether the channel that generated this event is reconnecting.
`rootCause`	Provides access to the underlying reason for the failure if the channel did not raise the failure itself.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

Event Object Type: mx.events.PropertyChangeEvent
PropertyChangeEvent.type property = mx.events.PropertyChangeEvent.PROPERTY_CHANGE

Dispatched when a property of the ChannelSet changes.

The PropertyChangeEvent.PROPERTY_CHANGE constant defines the value of the type property of the event object for a PropertyChange event.

The properties of the event object have the following values:

Propriedade	Valor
`bubbles`	Determined by the constructor; defaults to false.
`cancelable`	Determined by the constructor; defaults to false.
`kind`	The kind of change; PropertyChangeEventKind.UPDATE or PropertyChangeEventKind.DELETE.
`oldValue`	The original property value.
`newValue`	The new property value, if any.
`property`	The property that changed
`source`	The object that contains the property that changed.
`currentTarget`	The Object that defines the event listener that handles the event. For exemplo, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

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ChannelSet	Propriedades \| Métodos \| Eventos

Pacote	mx.messaging
Classe	public class ChannelSet
Herança	ChannelSet EventDispatcher Object