ActionScript® 3.0 Reference for the Adobe® Flash® Platform
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mx.messaging 

Channel  - AS3 BlazeDS LCDS

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adobe.utils
air.desktop
air.net
air.update
air.update.events
coldfusion.air
coldfusion.air.errors
coldfusion.air.events
coldfusion.service
coldfusion.service.events
coldfusion.service.mxml
com.adobe.acm.solutions.authoring.domain.extensions
com.adobe.acm.solutions.ccr.domain.extensions
com.adobe.consulting.pst.vo
com.adobe.dct.component
com.adobe.dct.component.datadictionary
com.adobe.dct.component.datadictionaryElement
com.adobe.dct.component.dataElementsPanel
com.adobe.dct.component.toolbars
com.adobe.dct.event
com.adobe.dct.exp
com.adobe.dct.model
com.adobe.dct.service
com.adobe.dct.service.provider
com.adobe.dct.transfer
com.adobe.dct.util
com.adobe.dct.view
com.adobe.ep.taskmanagement.domain
com.adobe.ep.taskmanagement.event
com.adobe.ep.taskmanagement.filter
com.adobe.ep.taskmanagement.services
com.adobe.ep.taskmanagement.util
com.adobe.ep.ux.attachmentlist.component
com.adobe.ep.ux.attachmentlist.domain
com.adobe.ep.ux.attachmentlist.domain.events
com.adobe.ep.ux.attachmentlist.domain.renderers
com.adobe.ep.ux.attachmentlist.skin
com.adobe.ep.ux.attachmentlist.skin.renderers
com.adobe.ep.ux.content.event
com.adobe.ep.ux.content.factory
com.adobe.ep.ux.content.handlers
com.adobe.ep.ux.content.managers
com.adobe.ep.ux.content.model.asset
com.adobe.ep.ux.content.model.preview
com.adobe.ep.ux.content.model.relation
com.adobe.ep.ux.content.model.search
com.adobe.ep.ux.content.model.toolbar
com.adobe.ep.ux.content.search
com.adobe.ep.ux.content.services
com.adobe.ep.ux.content.services.load
com.adobe.ep.ux.content.services.permissions
com.adobe.ep.ux.content.services.preview
com.adobe.ep.ux.content.services.providers
com.adobe.ep.ux.content.services.query
com.adobe.ep.ux.content.services.relationships
com.adobe.ep.ux.content.services.search.lccontent
com.adobe.ep.ux.content.services.version
com.adobe.ep.ux.content.view
com.adobe.ep.ux.content.view.components.activate
com.adobe.ep.ux.content.view.components.grid
com.adobe.ep.ux.content.view.components.grid.hover
com.adobe.ep.ux.content.view.components.grid.hover.component
com.adobe.ep.ux.content.view.components.grid.renderers
com.adobe.ep.ux.content.view.components.relationships
com.adobe.ep.ux.content.view.components.review
com.adobe.ep.ux.content.view.components.search.renderers
com.adobe.ep.ux.content.view.components.searchpod
com.adobe.ep.ux.content.view.components.toolbar
com.adobe.ep.ux.content.view.components.toolbar.controlRenderers
com.adobe.ep.ux.content.view.components.version
com.adobe.ep.ux.documentsubmit.component
com.adobe.ep.ux.documentsubmit.domain
com.adobe.ep.ux.documentsubmit.skin
com.adobe.ep.ux.taskaction.component
com.adobe.ep.ux.taskaction.domain
com.adobe.ep.ux.taskaction.domain.events
com.adobe.ep.ux.taskaction.skin
com.adobe.ep.ux.taskdetails.component
com.adobe.ep.ux.taskdetails.domain
com.adobe.ep.ux.taskdetails.skin
com.adobe.ep.ux.tasklist.component
com.adobe.ep.ux.tasklist.domain
com.adobe.ep.ux.tasklist.skin
com.adobe.ep.ux.webdocumentviewer.domain
com.adobe.exm.expression
com.adobe.exm.expression.error
com.adobe.exm.expression.event
com.adobe.exm.expression.impl
com.adobe.fiber.runtime.lib
com.adobe.fiber.services
com.adobe.fiber.services.wrapper
com.adobe.fiber.styles
com.adobe.fiber.util
com.adobe.fiber.valueobjects
com.adobe.gravity.binding
com.adobe.gravity.context
com.adobe.gravity.flex.bundleloader
com.adobe.gravity.flex.progress
com.adobe.gravity.flex.serviceloader
com.adobe.gravity.framework
com.adobe.gravity.init
com.adobe.gravity.service.bundleloader
com.adobe.gravity.service.logging
com.adobe.gravity.service.manifest
com.adobe.gravity.service.progress
com.adobe.gravity.tracker
com.adobe.gravity.ui
com.adobe.gravity.utility
com.adobe.gravity.utility.async
com.adobe.gravity.utility.error
com.adobe.gravity.utility.events
com.adobe.gravity.utility.factory
com.adobe.gravity.utility.flex.async
com.adobe.gravity.utility.logging
com.adobe.gravity.utility.message
com.adobe.gravity.utility.sequence
com.adobe.gravity.utility.url
com.adobe.guides.control
com.adobe.guides.domain
com.adobe.guides.i18n
com.adobe.guides.spark.components.skins
com.adobe.guides.spark.components.skins.mx
com.adobe.guides.spark.headers.components
com.adobe.guides.spark.headers.skins
com.adobe.guides.spark.layouts.components
com.adobe.guides.spark.layouts.skins
com.adobe.guides.spark.navigators.components
com.adobe.guides.spark.navigators.renderers
com.adobe.guides.spark.navigators.skins
com.adobe.guides.spark.util
com.adobe.guides.spark.wrappers.components
com.adobe.guides.spark.wrappers.skins
com.adobe.guides.submit
com.adobe.icc.dc.domain
com.adobe.icc.dc.domain.factory
com.adobe.icc.editors.events
com.adobe.icc.editors.handlers
com.adobe.icc.editors.managers
com.adobe.icc.editors.model
com.adobe.icc.editors.model.config
com.adobe.icc.editors.model.el
com.adobe.icc.editors.model.el.operands
com.adobe.icc.editors.model.el.operators
com.adobe.icc.enum
com.adobe.icc.external.dc
com.adobe.icc.obj
com.adobe.icc.services
com.adobe.icc.services.category
com.adobe.icc.services.config
com.adobe.icc.services.download
com.adobe.icc.services.export
com.adobe.icc.services.external
com.adobe.icc.services.formbridge
com.adobe.icc.services.fragmentlayout
com.adobe.icc.services.layout
com.adobe.icc.services.letter
com.adobe.icc.services.locator
com.adobe.icc.services.module
com.adobe.icc.services.render
com.adobe.icc.services.submit
com.adobe.icc.services.user
com.adobe.icc.token
com.adobe.icc.vo
com.adobe.icc.vo.render
com.adobe.icomm.assetplacement.controller
com.adobe.icomm.assetplacement.controller.utils
com.adobe.icomm.assetplacement.data
com.adobe.icomm.assetplacement.model
com.adobe.livecycle.assetmanager.client
com.adobe.livecycle.assetmanager.client.event
com.adobe.livecycle.assetmanager.client.handler
com.adobe.livecycle.assetmanager.client.managers
com.adobe.livecycle.assetmanager.client.model
com.adobe.livecycle.assetmanager.client.model.cms
com.adobe.livecycle.assetmanager.client.service
com.adobe.livecycle.assetmanager.client.service.search
com.adobe.livecycle.assetmanager.client.service.search.cms
com.adobe.livecycle.assetmanager.client.utils
com.adobe.livecycle.content
com.adobe.livecycle.rca.model
com.adobe.livecycle.rca.model.constant
com.adobe.livecycle.rca.model.document
com.adobe.livecycle.rca.model.participant
com.adobe.livecycle.rca.model.reminder
com.adobe.livecycle.rca.model.stage
com.adobe.livecycle.rca.service
com.adobe.livecycle.rca.service.core
com.adobe.livecycle.rca.service.core.delegate
com.adobe.livecycle.rca.service.process
com.adobe.livecycle.rca.service.process.delegate
com.adobe.livecycle.rca.token
com.adobe.livecycle.ria.security.api
com.adobe.livecycle.ria.security.service
com.adobe.mosaic.layouts
com.adobe.mosaic.layouts.dragAndDrop
com.adobe.mosaic.layouts.interfaces
com.adobe.mosaic.mxml
com.adobe.mosaic.om.constants
com.adobe.mosaic.om.events
com.adobe.mosaic.om.impl
com.adobe.mosaic.om.interfaces
com.adobe.mosaic.skinning
com.adobe.mosaic.sparklib.editors
com.adobe.mosaic.sparklib.optionMenu
com.adobe.mosaic.sparklib.scrollableMenu
com.adobe.mosaic.sparklib.scrollableMenu.skins
com.adobe.mosaic.sparklib.tabLayout
com.adobe.mosaic.sparklib.tabLayout.events
com.adobe.mosaic.sparklib.tabLayout.layouts
com.adobe.mosaic.sparklib.tabLayout.skins
com.adobe.mosaic.sparklib.text
com.adobe.mosaic.sparklib.util
com.adobe.solutions.acm.authoring.presentation
com.adobe.solutions.acm.authoring.presentation.actionbar
com.adobe.solutions.acm.authoring.presentation.common
com.adobe.solutions.acm.authoring.presentation.events
com.adobe.solutions.acm.authoring.presentation.fragment
com.adobe.solutions.acm.authoring.presentation.letter
com.adobe.solutions.acm.authoring.presentation.letter.data
com.adobe.solutions.acm.authoring.presentation.preview
com.adobe.solutions.acm.authoring.presentation.rte
com.adobe.solutions.acm.ccr.presentation
com.adobe.solutions.acm.ccr.presentation.contentcapture
com.adobe.solutions.acm.ccr.presentation.contentcapture.events
com.adobe.solutions.acm.ccr.presentation.contentcapture.preview
com.adobe.solutions.acm.ccr.presentation.datacapture
com.adobe.solutions.acm.ccr.presentation.datacapture.renderers
com.adobe.solutions.acm.ccr.presentation.pdf
com.adobe.solutions.exm
com.adobe.solutions.exm.authoring
com.adobe.solutions.exm.authoring.components.controls
com.adobe.solutions.exm.authoring.components.toolbars
com.adobe.solutions.exm.authoring.domain
com.adobe.solutions.exm.authoring.domain.expression
com.adobe.solutions.exm.authoring.domain.impl
com.adobe.solutions.exm.authoring.domain.method
com.adobe.solutions.exm.authoring.domain.variable
com.adobe.solutions.exm.authoring.enum
com.adobe.solutions.exm.authoring.events
com.adobe.solutions.exm.authoring.model
com.adobe.solutions.exm.authoring.renderer
com.adobe.solutions.exm.authoring.view
com.adobe.solutions.exm.expression
com.adobe.solutions.exm.impl
com.adobe.solutions.exm.impl.method
com.adobe.solutions.exm.method
com.adobe.solutions.exm.mock
com.adobe.solutions.exm.mock.method
com.adobe.solutions.exm.runtime
com.adobe.solutions.exm.runtime.impl
com.adobe.solutions.exm.variable
com.adobe.solutions.prm.constant
com.adobe.solutions.prm.domain
com.adobe.solutions.prm.domain.factory
com.adobe.solutions.prm.domain.impl
com.adobe.solutions.prm.domain.manager
com.adobe.solutions.prm.presentation.asset
com.adobe.solutions.prm.presentation.constant
com.adobe.solutions.prm.presentation.document
com.adobe.solutions.prm.presentation.event
com.adobe.solutions.prm.presentation.file
com.adobe.solutions.prm.presentation.project
com.adobe.solutions.prm.presentation.team
com.adobe.solutions.prm.presentation.util
com.adobe.solutions.prm.service
com.adobe.solutions.prm.services.impl
com.adobe.solutions.prm.vo
com.adobe.solutions.rca.constant
com.adobe.solutions.rca.domain
com.adobe.solutions.rca.domain.common
com.adobe.solutions.rca.domain.factory
com.adobe.solutions.rca.domain.impl
com.adobe.solutions.rca.domain.impl.manager
com.adobe.solutions.rca.domain.manager
com.adobe.solutions.rca.presentation
com.adobe.solutions.rca.presentation.comment
com.adobe.solutions.rca.presentation.constant
com.adobe.solutions.rca.presentation.event
com.adobe.solutions.rca.presentation.gantt
com.adobe.solutions.rca.presentation.gantt.ruler
com.adobe.solutions.rca.presentation.template
com.adobe.solutions.rca.presentation.template.audit
com.adobe.solutions.rca.presentation.template.definition
com.adobe.solutions.rca.presentation.template.documents
com.adobe.solutions.rca.presentation.template.stages
com.adobe.solutions.rca.presentation.util
com.adobe.solutions.rca.service
com.adobe.solutions.rca.services.impl
com.adobe.solutions.rca.vo
com.adobe.solutions.rca.vo.um
com.adobe.viewsource
fl.accessibility
fl.containers
fl.controls
fl.controls.dataGridClasses
fl.controls.listClasses
fl.controls.progressBarClasses
fl.core
fl.data
fl.display
fl.events
fl.ik
fl.lang
fl.livepreview
fl.managers
fl.motion
fl.motion.easing
fl.rsl
fl.text
fl.transitions
fl.transitions.easing
fl.video
flash.accessibility
flash.concurrent
flash.crypto
flash.data
flash.desktop
flash.display
flash.display3D
flash.display3D.textures
flash.errors
flash.events
flash.external
flash.filesystem
flash.filters
flash.geom
flash.globalization
flash.html
flash.media
flash.net
flash.net.dns
flash.net.drm
flash.notifications
flash.permissions
flash.printing
flash.profiler
flash.sampler
flash.security
flash.sensors
flash.system
flash.text
flash.text.engine
flash.text.ime
flash.ui
flash.utils
flash.xml
flashx.textLayout
flashx.textLayout.compose
flashx.textLayout.container
flashx.textLayout.conversion
flashx.textLayout.edit
flashx.textLayout.elements
flashx.textLayout.events
flashx.textLayout.factory
flashx.textLayout.formats
flashx.textLayout.operations
flashx.textLayout.utils
flashx.undo
ga.controls
ga.layouts
ga.model
ga.uiComponents
ga.util
ga.views
ga.wrappers
lc.foundation
lc.foundation.domain
lc.foundation.events
lc.foundation.ui
lc.foundation.util
lc.preloader
lc.procmgmt
lc.procmgmt.commands
lc.procmgmt.domain
lc.procmgmt.events
lc.procmgmt.formbridge
lc.procmgmt.impl
lc.procmgmt.ui.attachments
lc.procmgmt.ui.controls
lc.procmgmt.ui.controls.card
lc.procmgmt.ui.controls.renderer
lc.procmgmt.ui.help
lc.procmgmt.ui.layout
lc.procmgmt.ui.presentationmodel
lc.procmgmt.ui.process
lc.procmgmt.ui.search
lc.procmgmt.ui.startpoint
lc.procmgmt.ui.task
lc.procmgmt.ui.task.form
lc.procmgmt.ui.task.form.commands
lc.procmgmt.ui.tracking
mx.accessibility
mx.automation
mx.automation.air
mx.automation.delegates
mx.automation.delegates.advancedDataGrid
mx.automation.delegates.charts
mx.automation.delegates.containers
mx.automation.delegates.controls
mx.automation.delegates.controls.dataGridClasses
mx.automation.delegates.controls.fileSystemClasses
mx.automation.delegates.core
mx.automation.delegates.flashflexkit
mx.automation.events
mx.binding
mx.binding.utils
mx.charts
mx.charts.chartClasses
mx.charts.effects
mx.charts.effects.effectClasses
mx.charts.events
mx.charts.renderers
mx.charts.series
mx.charts.series.items
mx.charts.series.renderData
mx.charts.styles
mx.collections
mx.collections.errors
mx.containers
mx.containers.accordionClasses
mx.containers.dividedBoxClasses
mx.containers.errors
mx.containers.utilityClasses
mx.controls
mx.controls.advancedDataGridClasses
mx.controls.dataGridClasses
mx.controls.listClasses
mx.controls.menuClasses
mx.controls.olapDataGridClasses
mx.controls.scrollClasses
mx.controls.sliderClasses
mx.controls.textClasses
mx.controls.treeClasses
mx.controls.videoClasses
mx.core
mx.core.windowClasses
mx.data
mx.data.crypto
mx.data.errors
mx.data.events
mx.data.messages
mx.data.mxml
mx.data.offline.errors
mx.data.utils
mx.effects
mx.effects.easing
mx.effects.effectClasses
mx.events
mx.filters
mx.flash
mx.formatters
mx.geom
mx.graphics
mx.graphics.codec
mx.graphics.shaderClasses
mx.logging
mx.logging.errors
mx.logging.targets
mx.managers
mx.messaging
mx.messaging.channels
mx.messaging.config
mx.messaging.errors
mx.messaging.events
mx.messaging.management
mx.messaging.messages
mx.modules
mx.netmon
mx.olap
mx.olap.aggregators
mx.preloaders
mx.printing
mx.resources
mx.rpc
mx.rpc.events
mx.rpc.http
mx.rpc.http.mxml
mx.rpc.livecycle
mx.rpc.mxml
mx.rpc.remoting
mx.rpc.remoting.mxml
mx.rpc.soap
mx.rpc.soap.mxml
mx.rpc.wsdl
mx.rpc.xml
mx.skins
mx.skins.halo
mx.skins.spark
mx.skins.wireframe
mx.skins.wireframe.windowChrome
mx.states
mx.styles
mx.utils
mx.validators
org.osmf.containers
org.osmf.display
org.osmf.elements
org.osmf.events
org.osmf.layout
org.osmf.logging
org.osmf.media
org.osmf.metadata
org.osmf.net
org.osmf.net.dvr
org.osmf.net.httpstreaming
org.osmf.net.metrics
org.osmf.net.qos
org.osmf.net.rtmpstreaming
org.osmf.net.rules
org.osmf.traits
org.osmf.utils
spark.accessibility
spark.automation.delegates
spark.automation.delegates.components
spark.automation.delegates.components.gridClasses
spark.automation.delegates.components.mediaClasses
spark.automation.delegates.components.supportClasses
spark.automation.delegates.skins.spark
spark.automation.events
spark.collections
spark.components
spark.components.calendarClasses
spark.components.gridClasses
spark.components.mediaClasses
spark.components.supportClasses
spark.components.windowClasses
spark.core
spark.effects
spark.effects.animation
spark.effects.easing
spark.effects.interpolation
spark.effects.supportClasses
spark.events
spark.filters
spark.formatters
spark.formatters.supportClasses
spark.globalization
spark.globalization.supportClasses
spark.layouts
spark.layouts.supportClasses
spark.managers
spark.modules
spark.preloaders
spark.primitives
spark.primitives.supportClasses
spark.skins
spark.skins.mobile
spark.skins.mobile.supportClasses
spark.skins.spark
spark.skins.spark.mediaClasses.fullScreen
spark.skins.spark.mediaClasses.normal
spark.skins.spark.windowChrome
spark.skins.wireframe
spark.skins.wireframe.mediaClasses
spark.skins.wireframe.mediaClasses.fullScreen
spark.transitions
spark.utils
spark.validators
spark.validators.supportClasses
xd.core.axm.enterprise.view.components
xd.core.axm.enterprise.view.skins
xd.core.axm.view.components
xd.core.axm.view.components.support

Language Elements

Global Constants
Global Functions
Operators
Statements, Keywords & Directives
Special Types

Appendixes

What's New
Compiler Errors
Compiler Warnings
Run-Time Errors
Migrating to ActionScript 3
Supported Character Sets
MXML Only Tags
Motion XML Elements
Timed Text Tags
List of deprecated elements
Accessibility Implementation Constants
How to Use ActionScript Examples
Legal notices
Packagemx.messaging
Classpublic class Channel
InheritanceChannel Inheritance EventDispatcher Inheritance Object
Implements IMXMLObject
Subclasses PollingChannel

Language Version: ActionScript 3.0
Product Versions: BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3
Runtime Versions: Flash Player 9, AIR 1.1

The Channel class is the base message channel class that all channels in the messaging system must extend.

Channels are specific protocol-based conduits for messages sent between MessageAgents and remote destinations. Preconfigured channels are obtained within the framework using the ServerConfig.getChannel() method. You can create a Channel directly using the new operator and add it to a ChannelSet directly.

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.

Note: This class is for advanced use only. Use this class for creating custom channels like the existing RTMPChannel, AMFChannel, and HTTPChannel.



Public Properties
 PropertyDefined By
  authenticated : Boolean
[read-only] Indicates if this channel is authenticated.
Channel
  channelSets : Array
[read-only] Provides access to the ChannelSets connected to the Channel.
Channel
  connected : Boolean
[read-only] 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
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
  endpoint : String
[read-only] 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
[read-only] Provides access to the protocol that the channel uses.
Channel
  reconnecting : Boolean
[read-only] Indicates whether this channel is in the process of reconnecting to an alternate endpoint.
Channel
  recordMessageSizes : Boolean
[read-only] Channel property determines the level of performance information injection - whether we inject message sizes or not.
Channel
  recordMessageTimes : Boolean
[read-only] 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
Protected Properties
 PropertyDefined By
  shouldBeConnected : Boolean
[read-only] Indicates whether this channel should be connected to its endpoint.
Channel
Public Methods
 MethodDefined By
  
Channel(id:String = null, uri:String = null)
Constructs an instance of a generic Channel that connects to the specified endpoint URI.
Channel
 Inherited
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
  
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
  
Disconnects the ChannelSet from the Channel.
Channel
 Inherited
Dispatches an event into the event flow.
EventDispatcher
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
  
Sends a CommandMessage to the server to logout if the Channel is connected.
Channel
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
  
send(agent:MessageAgent, message:IMessage):void
Sends the specified message to its target destination.
Channel
  
setCredentials(credentials:String, agent:MessageAgent = null, charset:String = null):void
Sets the credentials to the specified value.
Channel
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Protected Methods
 MethodDefined By
  
Applies the client load balancing urls if they exists.
Channel
  
Processes a failed internal connect and dispatches the FAULT event for the channel.
Channel
  
Processes a successful internal connect and dispatches the CONNECT event for the Channel.
Channel
  
Handles a connect timeout by dispatching a ChannelFaultEvent.
Channel
  
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
  
Handles a change to the guard condition for managing initial Channel connect for the application.
Channel
  
Returns the appropriate MessageResponder for the Channel's send() method.
Channel
  
Connects the Channel to its endpoint.
Channel
  
internalDisconnect(rejected:Boolean = false):void
Disconnects the Channel from its endpoint.
Channel
  
Sends the Message out over the Channel and routes the response to the responder.
Channel
Events
 Event Summary Defined By
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.EventDispatcher
  Dispatched after the channel has connected to its endpoint.Channel
  Dispatched after the channel has disconnected from its endpoint.Channel
  Dispatched after the channel has faulted.Channel
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.EventDispatcher
  Dispatched when a channel receives a message from its endpoint.Channel
  Dispatched when a property of the channel changes.Channel
Protected Constants
 ConstantDefined By
  CONNECT_TIMEOUT_SECONDS : String = "connect-timeout-seconds"
[static]
Channel
  ENABLE_SMALL_MESSAGES : String = "enable-small-messages"
[static]
Channel
  FALSE : String = "false"
[static]
Channel
  RECORD_MESSAGE_SIZES : String = "record-message-sizes"
[static]
Channel
  RECORD_MESSAGE_TIMES : String = "record-message-times"
[static]
Channel
  REQUEST_TIMEOUT_SECONDS : String = "request-timeout-seconds"
[static]
Channel
  SERIALIZATION : String = "serialization"
[static]
Channel
  TRUE : String = "true"
[static]
Channel
Property Detail

authenticated

property
authenticated:Boolean  [read-only]

Indicates if this channel is authenticated.

This property can be used as the source for data binding. When this property is modified, it dispatches the propertyChange event.



Implementation
    public function get authenticated():Boolean

endpoint

property 
endpoint:String  [read-only]

Provides access to the endpoint for this channel. This value is calculated based on the value of the uri property.



Implementation
    public function get endpoint():String

failoverURIs

property 
failoverURIs:Array

Provides access to the set of endpoint URIs that this channel can attempt to failover to if the endpoint is clustered.

This property is automatically populated when clustering is enabled. If you don't use clustering, you can set your own values.



Implementation
    public function get failoverURIs():Array
    public function set failoverURIs(value:Array):void

id

property 
id:String

Provides access to the id of this channel.



Implementation
    public function get id():String
    public function set id(value:String):void

protocol

property 
protocol:String  [read-only]

Provides access to the protocol that the channel uses.

Note: Subclasses of Channel must override this method and return a string that represents their supported protocol. Examples of supported protocol strings are "rtmp", "http" or "https".



Implementation
    public function get protocol():String

reconnecting

property 
reconnecting:Boolean  [read-only]

Indicates whether this channel is in the process of reconnecting to an alternate endpoint.

This property can be used as the source for data binding. When this property is modified, it dispatches the propertyChange event.



Implementation
    public function get reconnecting():Boolean

requestTimeout

property 
requestTimeout:int

Provides access to the default request timeout in seconds for the channel. A value of 0 or below indicates that outbound requests will never be timed out on the client.

Request timeouts are most useful for RPC style messaging that requires a response from the remote destination.



Implementation
    public function get requestTimeout():int
    public function set requestTimeout(value:int):void

shouldBeConnected

property 
shouldBeConnected:Boolean  [read-only]

Indicates whether this channel should be connected to its endpoint. This flag is used to control when fail over should be attempted and when disconnect notification is sent to the remote endpoint upon disconnect or fault.



Implementation
    protected function get shouldBeConnected():Boolean

uri

property 
uri:String

Provides access to the URI used to create the whole endpoint URI for this channel. The URI can be a partial path, in which case the full endpoint URI is computed as necessary.



Implementation
    public function get uri():String
    public function set uri(value:String):void
Constructor Detail
Method Detail

applyClientLoadBalancingSettings

()method
protected function applyClientLoadBalancingSettings(props:XML):void

Applies the client load balancing urls if they exists. It randomly picks a url from the set of client load balancing urls and sets it as the channel's main url; then it assigns the rest of the urls as the failoverURIs of the channel.

Parameters

props:XML — The properties section of the XML fragment of the services-config.xml file for this channel.

applySettings

()method 
public function applySettings(settings:XML):void

Subclasses should override this method to apply any settings that may be necessary for an individual channel. Make sure to call super.applySettings() to apply common settings for the channel. This method is used primarily in Channel subclasses.

Parameters

settings:XML — XML fragment of the services-config.xml file for this channel.

connect

()method 
public final function connect(channelSet:ChannelSet):void

Connects the ChannelSet to the Channel. If the Channel has not yet connected to its endpoint, it attempts to do so. Channel subclasses must override the internalConnect() method, and call the connectSuccess() method once the underlying connection is established.

Parameters

channelSet:ChannelSet — The ChannelSet to connect to the Channel.

connectFailed

()method 
protected function connectFailed(event:ChannelFaultEvent):void

Processes a failed internal connect and dispatches the FAULT event for the channel. If the Channel has failoverURI values, it will attempt to reconnect automatically by trying these URI values in order until a connection is established or the available values are exhausted.

Parameters

event:ChannelFaultEvent — The ChannelFaultEvent for the failed connect.

connectSuccess

()method 
protected function connectSuccess():void

Processes a successful internal connect and dispatches the CONNECT event for the Channel.

connectTimeoutHandler

()method 
protected function connectTimeoutHandler(event:flash.events:TimerEvent):void

Handles a connect timeout by dispatching a ChannelFaultEvent. Subtypes may overide this to shutdown the current connect attempt but must call super.connectTimeoutHandler(event).

Parameters

event:flash.events:TimerEvent — The timer event indicating that the connect timeout has been reached.

disconnect

()method 
public final function disconnect(channelSet:ChannelSet):void

Disconnects the ChannelSet from the Channel. If the Channel is connected to its endpoint and it has no more connected ChannelSets it will internally disconnect.

Channel subclasses need to override the internalDisconnect() method, and call the disconnectSuccess() method when the underlying connection has been terminated.

Parameters

channelSet:ChannelSet — The ChannelSet to disconnect from the Channel.

disconnectFailed

()method 
protected function disconnectFailed(event:ChannelFaultEvent):void

Processes a failed internal disconnect and dispatches the FAULT event for the channel.

Parameters

event:ChannelFaultEvent — The ChannelFaultEvent for the failed disconnect.

disconnectSuccess

()method 
protected function disconnectSuccess(rejected:Boolean = false):void

Processes a successful internal disconnect and dispatches the DISCONNECT event for the Channel. If the disconnect is due to a network failure and the Channel has failoverURI values, it will attempt to reconnect automatically by trying these URI values in order until a connection is established or the available values are exhausted.

Parameters

rejected:Boolean (default = false) — True if the disconnect should skip any failover processing that would otherwise be attempted; false if failover processing should be allowed to run.

flexClientWaitHandler

()method 
protected function flexClientWaitHandler(event:PropertyChangeEvent):void

Handles a change to the guard condition for managing initial Channel connect for the application. When this is invoked it means that this Channel is waiting to attempt to connect.

Parameters

event:PropertyChangeEvent — The PropertyChangeEvent dispatched by the FlexClient singleton.

getMessageResponder

()method 
protected function getMessageResponder(agent:MessageAgent, message:IMessage):MessageResponder

Returns the appropriate MessageResponder for the Channel's send() method. Must be overridden.

Parameters

agent:MessageAgent — The MessageAgent sending the message.
 
message:IMessage — The Message to send.

Returns
MessageResponder — The MessageResponder to handle the result or fault.

Throws
IllegalOperationError — If the Channel subclass does not override this method.

internalConnect

()method 
protected function internalConnect():void

Connects the Channel to its endpoint. Must be overridden.

internalDisconnect

()method 
protected function internalDisconnect(rejected:Boolean = false):void

Disconnects the Channel from its endpoint. Must be overridden.

Parameters

rejected:Boolean (default = false) — True if the disconnect was due to a connection rejection or timeout and reconnection should not be attempted automatically; otherwise false.

internalSend

()method 
protected function internalSend(messageResponder:MessageResponder):void

Sends the Message out over the Channel and routes the response to the responder. Must be overridden.

Parameters

messageResponder:MessageResponder — The MessageResponder to handle the response.

logout

()method 
public function logout(agent:MessageAgent):void

Sends a CommandMessage to the server to logout if the Channel is connected. Current credentials are cleared.

Parameters

agent:MessageAgent — The MessageAgent to logout.

send

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

Sends the specified message to its target destination. Subclasses must override the internalSend() method to perform the actual send.

Parameters

agent:MessageAgent — The MessageAgent that is sending the message.
 
message:IMessage — The Message to send.


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

setCredentials

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

Sets the credentials to the specified value. If the credentials are non-null and the Channel is connected, this method also sends a CommandMessage to the server to login using the credentials.

Parameters

credentials:String — The credentials string.
 
agent:MessageAgent (default = null) — The MessageAgent to login, that will handle the login result.
 
charset:String (default = null) — The character set encoding used while encoding the credentials. The default is null, which implies the legacy charset 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.
Event Detail

channelConnect

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

Dispatched after the channel has connected to its endpoint.

Channel and its subclasses issue a Channel.Connect.Failed code whenever there is an issue in a channel's connect attempts to a remote destination. An AMFChannel object issues Channel.Call.Failed code when the channel is already connected but it gets a Call.Failed code from its underlying NetConnection.

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:

PropertyValue
bubblesfalse
cancelablefalse
channelThe channel that generated this event.
currentTargetThe Object that defines the event listener that handles the event. For example, if you use myButton.addEventListener() to register an event listener, myButton is the value of the currentTarget.
targetThe 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.
Constant Detail

CONNECT_TIMEOUT_SECONDS

Constant
protected static const CONNECT_TIMEOUT_SECONDS:String = "connect-timeout-seconds"

ENABLE_SMALL_MESSAGES

Constant 
protected static const ENABLE_SMALL_MESSAGES:String = "enable-small-messages"

FALSE

Constant 
protected static const FALSE:String = "false"

RECORD_MESSAGE_SIZES

Constant 
protected static const RECORD_MESSAGE_SIZES:String = "record-message-sizes"

RECORD_MESSAGE_TIMES

Constant 
protected static const RECORD_MESSAGE_TIMES:String = "record-message-times"

REQUEST_TIMEOUT_SECONDS

Constant 
protected static const REQUEST_TIMEOUT_SECONDS:String = "request-timeout-seconds"

SERIALIZATION

Constant 
protected static const SERIALIZATION:String = "serialization"

TRUE

Constant 
protected static const TRUE:String = "true"