CallResponder - Referencia de la API de Adobe ActionScript® 3 (AS3 Flex)

Paquete	mx.rpc
Clase	public class CallResponder
Herencia	CallResponder EventDispatcher Object
Implementa	IResponder

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

This component helps you manage the results for asynchronous calls made from RPC based services, typically from MXML components. While each individual service and operation dispatches result and fault events, it is common to need to use the same operation in different parts of your application. Using one event listener or lastResult value across the entire application can be awkward. Rather than creating two service components which refer to the same service, you can use a simple lightweight CallResponder to manage the event listeners and lastResult value for a specific invocation of a service.

You set the token property of this component to the AsyncToken returned by the service. You can then add event listeners on this component instead of having to add them to each AsyncToken returned. This component also maintains the lastResult property which is a copy of the value returned by the last successful result event dispatched by a token monitored by this service. Though you can bind to either the callResponder.token.result or callResponder.lastResult, the latter will be preserved while a second call to the same service is in progress while the former will be reset as soon as a new service invocation is started.

Propiedades públicas

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	Propiedad		Definido por
		constructor : Object Una referencia a la clase de objeto o función constructora para una instancia de objeto determinada.	Object
		lastResult : * This property stores the result property of the token each time it delivers a successful result.	CallResponder
		token : mx.rpc:AsyncToken Each CallResponder dispatches result and fault events received from a single token.	CallResponder

Métodos públicos

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	Método		Definido por
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registra un objeto de detector de eventos con un objeto EventDispatcher, de modo que el detector reciba la notificación de un evento.	EventDispatcher
		dispatchEvent(event:Event):Boolean Distribuye un evento en el flujo del evento.	EventDispatcher
		fault(data:Object):void This method is called by the AsyncToken when it wants to deliver a FaultEvent to the CallResponder.	CallResponder
		hasEventListener(type:String):Boolean Comprueba si el objeto EventDispatcher tiene detectores registrados para un tipo concreto de evento.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indica si un objeto tiene definida una propiedad especificada.	Object
		isPrototypeOf(theClass:Object):Boolean Indica si hay una instancia de la clase Object en la cadena de prototipo del objeto especificado como parámetro.	Object
		propertyIsEnumerable(name:String):Boolean Indica si existe la propiedad especificada y si es enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Elimina un detector del objeto EventDispatcher.	EventDispatcher
		result(data:Object):void This method is called by the AsyncToken when it wants to deliver a ResultEvent to the CallResponder.	CallResponder
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Establece la disponibilidad de una propiedad dinámica para operaciones de bucle.	Object
		toLocaleString():String Devuelve la representación de cadena de este objeto, con formato según las convenciones específicas de configuración regional.	Object
		toString():String Devuelve la representación de cadena del objeto especificado.	Object
		valueOf():Object Devuelve el valor simple del objeto especificado.	Object
		willTrigger(type:String):Boolean Comprueba si hay registrado un detector de eventos con este objeto EventDispatcher o con cualquiera de sus ascendientes para el tipo de evento concreto.	EventDispatcher

Eventos

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	Resumen	Definido por
activate	[evento broadcast] Se distribuye cuando Flash Player o AIR pasan a estar activos.	EventDispatcher
deactivate	[evento broadcast] Se distribuye cuando Flash Player o de AIR pasan a estar inactivos.	EventDispatcher
fault	Dispatched when an Operation call fails.	CallResponder
result	Dispatched when an Operation invocation successfully returns.	CallResponder

Información sobre propiedades

lastResult

propiedad

lastResult:*

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

This property stores the result property of the token each time it delivers a successful result. You can bind to or access this property instead of the token.result property to keep your code from seeing that value cleared out on the second and subsequent call to a particular service method. Additionally, if a fault occurs this value will still be set to the last successful result returned by a token monitored by this CallResponder.

Esta propiedad se puede utilizar como origen para la vinculación de datos. Cuando se modifica esta propiedad, distribuye el evento propertyChange .

Implementación
public function get lastResult():*
public function set lastResult(value:any):void

token

propiedad

token:mx.rpc:AsyncToken

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

Each CallResponder dispatches result and fault events received from a single token. This property value specifies that token. You typically set this property to the AsyncToken object returned by the service.

Esta propiedad se puede utilizar como origen para la vinculación de datos. Cuando se modifica esta propiedad, distribuye el evento propertyChange .

Implementación
public function get token():mx.rpc:AsyncToken
public function set token(value:mx.rpc:AsyncToken):void

Información sobre métodos

fault

()

método

public function fault(data:Object):void

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

This method is called by the AsyncToken when it wants to deliver a FaultEvent to the CallResponder. You do not call this method directly.

Parámetros

data:Object — The FaultEvent delivered by the AsyncToken

result

()

método

public function result(data:Object):void

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

This method is called by the AsyncToken when it wants to deliver a ResultEvent to the CallResponder. You do not call this method directly.

Parámetros

data:Object — The ResultEvent delivered by the AsyncToken

Información sobre eventos

fault

Evento

Tipo de objeto de evento: mx.rpc.events.FaultEvent
propiedad FaultEvent.type = mx.rpc.events.FaultEvent.FAULT

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

Dispatched when an Operation call fails.

The FAULT event type.

The properties of the event object have the following values:

Property	Value
`bubbles`	false
`cancelable`	true, calling preventDefault() from the associated token's responder.fault method will prevent the service or operation from dispatching this event
`currentTarget`	The 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`.
`fault`	The Fault object that contains the details of what caused this event.
`message`	The Message associated with this event.
`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.
`token`	The token that represents the call to the method. Used in the asynchronous completion token pattern.

result

Evento

Tipo de objeto de evento: mx.rpc.events.ResultEvent
propiedad ResultEvent.type = mx.rpc.events.ResultEvent.RESULT

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

Flex 3

Versiones de motor de ejecución:

Flash Player 9, AIR 1.1

Dispatched when an Operation invocation successfully returns.

The RESULT event type.

The properties of the event object have the following values:

Property	Value
`bubbles`	false
`cancelable`	true, preventDefault() from the associated token's responder.result method will prevent the service or operation from dispatching this event
`currentTarget`	The 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`.
`message`	The Message associated with this event.
`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.
`result`	Result that the RPC call returns.
`token`	The token that represents the indiviudal call to the method. Used in the asynchronous completion token pattern.

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CallResponder - AS3 Flex

Clases x

lastResult

token

fault

result

fault

result