WebService

Pacchetto	mx.rpc.soap.mxml
Classe	public dynamic class WebService
Ereditarietà	WebService WebService AbstractWebService AbstractService Proxy
Implementa	IMXMLSupport, IMXMLObject

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

The <mx:WebService> tag gives you access to the operations of SOAP-compliant web services.

Sintassi MXML expanded

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The <mx:WebService> tag accepts the following tag attributes:

 <mx:WebService
   Properties
   concurrency="multiple|single|last"
   destination="No default."
   id="No default."
   serviceName="No default."
   showBusyCursor="false|true"
   makeObjectsBindable="false|true"
   useProxy="false|true"
   wsdl="No default."
 
   Events
   fault="No default."
   result="No default."
 />

An <mx:WebService> tag can have multiple <mx:operation> tags, which have the following tag attributes:

 <mx:operation
   Properties
   concurrency="multiple|single|last"
   name=No default, required.
   resultFormat="object|xml|e4x"
   makeObjectsBindable="false|true"
 
   
   Events
   fault=No default.
   result=No default.
 />

An <mx:Operation> tag contains an <mx:request> tag. To specify an XML structure in an <mx:request> tag, you must set the value of the tag's format attribute to "xml". Otherwise, the body is converted into Objects.

Vedere gli esempi

Proprietà pubbliche

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	Proprietà		Definito da
		channelSet : ChannelSet Provides access to the ChannelSet used by the service.	AbstractService
		concurrency : String Value that indicates how to handle multiple calls to the same service.	WebService
		convertParametersHandler : Function An optional function, primarily intended for framework developers who need to install a function to get called with the parameters passed to each webservice operation invocation.	AbstractWebService
		convertResultHandler : Function An optional function, primarily intended for framework developers who need to install a hook to process the results of an operation before notifying the result handlers.	AbstractWebService
		description : String The description of the service for the currently active port.	AbstractWebService
		destination : String [override] The destination of the service.	AbstractWebService
		endpointURI : String The location of the WebService.	AbstractWebService
		headers : Array [sola lettura] Returns the array of SOAPHeaders registered for the WebService.	AbstractWebService
		httpHeaders : Object Custom HTTP headers to be sent to the SOAP endpoint.	AbstractWebService
		makeObjectsBindable : Boolean When this value is true, anonymous objects returned are forced to bindable objects.	AbstractWebService
		managers : Array The managers property stores a list of data managers which modify the behavior of this service.	AbstractService
		operations : Object The Operations array is usually only set by the MXML compiler if you create a service using an MXML tag.	AbstractService
		port : String Specifies the port within the WSDL document that this WebService should use.	AbstractWebService
		protocol : String Obsoleti: Da utilizzare channelSet [sola scrittura] Deprecated, use the appropriate destination instead, or if using a url, use DefaultHTTP or DefaultHTTPS.	WebService
		ready : Boolean [sola lettura] Specifies whether the WebService is ready to make requests.	AbstractWebService
		requestTimeout : int Provides access to the request timeout in seconds for sent messages.	AbstractService
		rootURL : String The URL that the WebService should use when computing relative URLs.	AbstractWebService
		service : String Specifies the service within the WSDL document that this WebService should use.	AbstractWebService
		serviceName : String Obsoleti: Da utilizzare destination	WebService
		showBusyCursor : Boolean If true, a busy cursor is displayed while a service is executing.	WebService
		useProxy : Boolean Specifies whether to use the Flex proxy service.	AbstractWebService
		wsdl : String The location of the WSDL document for this WebService.	WebService
		xmlSpecialCharsFilter : Function Custom function to be used to escape XML special characters before encoding any simple content.	AbstractWebService

Metodi pubblici

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	Metodo		Definito da
		WebService(destination:String = null) Creates a new WebService component.	WebService
		addHeader(header:Object):void Adds a header that will be applied to all operations of this web service.	AbstractWebService
		addSimpleHeader(qnameLocal:String, qnameNamespace:String, headerName:String, headerValue:String):void Add a header that will be applied to all operations of this WebService.	AbstractWebService
		canLoadWSDL():Boolean Returns a Boolean value that indicates whether the WebService is ready to load a WSDL (does it have a valid destination or wsdl specified).	WebService
		clearHeaders():void Clears the headers that applied to all operations.	AbstractWebService
		disconnect():void Disconnects the service's network connection and removes any pending request responders.	AbstractService
		getHeader(qname:QName, headerName:String = null):SOAPHeader Returns a header if a match is found based on QName, localName, and URI.	AbstractWebService
		getOperation(name:String):AbstractOperation [override] Returns an Operation of the given name.	WebService
		initialize():void Called to initialize the service.	AbstractService
		initialized(document:Object, id:String):void Called automatically by the MXML compiler if the WebService is setup using a tag.	WebService
		loadWSDL(uri:String = null):void Instructs the WebService to download the WSDL document.	WebService
		logout():void Logs the user out of the destination.	AbstractService
		removeHeader(qname:QName, headerName:String = null):void Removes the header with the given QName from all operations.	AbstractWebService
		setCredentials(username:String, password:String, charset:String = null):void Sets the credentials for the destination accessed by the service when using Data Services on the server side.	AbstractService
		setRemoteCredentials(remoteUsername:String, remotePassword:String, charset:String = null):void [override] The username and password to authenticate a user when accessing the webservice.	AbstractWebService
		toString():String Represents an instance of WebService as a String, describing important properties such as the destination id and the set of channels assigned.	WebService

Metodi protetti

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	Metodo		Definito da
		initializeOperation(operation:Operation):void Initializes a new Operation.	WebService

Eventi

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	Riepilogo	Definito da
fault	The fault event is dispatched when a service call fails and isn't handled by the Operation itself.	AbstractService
invoke	The invoke event is dispatched when a service Operation is invoked so long as an Error is not thrown before the Channel attempts to send the message.	AbstractService
load	The LoadEvent.LOAD is dispatched when the WSDL document has loaded successfully.	WebService
result	The result event is dispatched when a service call successfully returns and isn't handled by the Operation itself.	AbstractService

Costanti pubbliche

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	Costante		Definito da

Descrizione delle proprietà

concurrency

proprietà

concurrency:String

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Value that indicates how to handle multiple calls to the same service. The default value is multiple. The following values are permitted:

multiple - Existing requests are not cancelled, and the developer is responsible for ensuring the consistency of returned data by carefully managing the event stream. This is the default.
single - Making only one request at a time is allowed on the method; additional requests made while a request is outstanding are immediately faulted on the client and are not sent to the server.
last - Making a request causes the client to ignore a result or fault for any current outstanding request. Only the result or fault for the most recent request will be dispatched on the client. This may simplify event handling in the client application, but care should be taken to only use this mode when results or faults for requests may be safely ignored.

Implementazione
public function get concurrency():String
public function set concurrency(value:String):void

protocol

proprietà

protocol:String [sola scrittura]

Obsoleti: Da utilizzare channelSet

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Deprecated, use the appropriate destination instead, or if using a url, use DefaultHTTP or DefaultHTTPS. The deprecated behavior will simply update the destination if the default is being used.

Implementazione
public function set protocol(value:String):void

serviceName

proprietà

serviceName:String

Obsoleti: Da utilizzare destination

Implementazione
public function get serviceName():String
public function set serviceName(value:String):void

showBusyCursor

proprietà

showBusyCursor:Boolean

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

If true, a busy cursor is displayed while a service is executing. The default value is false.

Implementazione
public function get showBusyCursor():Boolean
public function set showBusyCursor(value:Boolean):void

Descrizione della funzione di costruzione

()

Funzione di costruzione

public function WebService(destination:String = null)

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Creates a new WebService component.

Parametri

destination:String (default = null) — The destination of the WebService, which should match a destination name in the services-config.xml file. If unspecified, the WebService component uses the DefaultHTTP destination.

Descrizione dei metodi

getOperation

()

metodo

override public function getOperation(name:String):AbstractOperation

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Returns an Operation of the given name. If the Operation wasn't created beforehand, a new mx.rpc.soap.mxml.Operation is created during this call. Operations are usually accessible by simply naming them after the service variable (myService.someOperation), but if your Operation name happens to match a defined method on the service (like setCredentials), you can use this method to get the Operation instead.

Parametri

name:String — Name of the Operation.

Restituisce

AbstractOperation — Operation that executes for this name.

initialized

()

metodo

public function initialized(document:Object, id:String):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Called automatically by the MXML compiler if the WebService is setup using a tag. If you create the WebService through ActionScript you may want to call this method yourself as it is useful for validating any arguments.

Parametri

	`document:Object` — the MXML document on which this WebService lives

	`id:String` — the id of this WebService within the document

Esempi Come utilizzare questo esempio

WebServiceExample.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the WebService tag. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
     xmlns:s="library://ns.adobe.com/flex/spark" 
     xmlns:mx="library://ns.adobe.com/flex/mx">

    <!--  Make sure the Flex Data Services proxy-config.xml file contains 
          the following definition: 

        <destination id="DefaultHTTP">
            <properties>
                <dynamic-url>http://ws.invesbot.com</dynamic-url>
            </properties>
        </destination>
    -->

    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;        
        ]]>    
    </fx:Script>

    <fx:Declarations>
        <mx:WebService id="WS" wsdl="http://ws.invesbot.com/stockquotes.asmx?WSDL"
            useProxy="true"
            fault="Alert.show(event.fault.faultString), 'Error'">
            <mx:operation name="GetQuote" resultFormat="object">
                <mx:request>
                    <symbol>{stockSymbol.text}</symbol>
                </mx:request>
            </mx:operation>
        </mx:WebService>
    </fx:Declarations>

    <mx:Panel title="WebService Example" height="75%" width="75%" 
        paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10">
    
        <mx:Label width="100%"  color="blue"
            text="Enter a stock symbol to obtain a quote."/>
    
        <mx:TextInput id="stockSymbol" text="ADBE"/>
        <mx:Button label="Get Quote" click="WS.GetQuote.send()"/>
    
        <mx:Text htmlText="Company: {WS.GetQuote.lastResult.GetQuoteResult.StockQuote.Company}"/>
        <mx:Text htmlText="Current price: ${WS.GetQuote.lastResult.GetQuoteResult.StockQuote.Price}"/>
    </mx:Panel>    
</s:Application>

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WebService - AS3 Flex

Classi x

concurrency

protocol

serviceName

showBusyCursor

WebService

getOperation

initialized