MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Bedienungsanleitung PDF herunterladen (Seite 97)

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Flex – RPC Services

This chapter describes RPC Services provided by Adobe Flex:.

lex provides RPC services to provide server side data to client side. Flex provides a fair amount of controll

on to server side data.

 Using Flex RPC services, we can define user actions to be executed on server side.

 Flex RPC Sservices can be integrated with any server side technologies.

 One of Flex RPC Service provide inbuilt support for compressed binary data to be transferred over the wire

and is pretty fast.

Flex provides following three types of RPC Services

RPC Service

Description

HttpService

<mx:HTTPService> tag is used to represent an HTTPService object in an MXML file. When

you make a call to HTTPService object's send() method, it makes an HTTP request to the

specified URL, and an HTTP response is returned.You can also use the HTTP HEAD,

OPTIONS, TRACE, and DELETE methods.

WebService

The <mx:WebService> tag is used to get access to the operations of SOAP-compliant web

services.

RemoteObject

The <mx:RemoteObject> tag is used to represent an HTTPService object in an MXML file.

This tag gives you access to the methods of Java objects using Action Message Format

(AMF) encoding.

We're going to discuss HTTP Service in detail. We'll use an XML source file placed at server and access it at client

side via HTTP Service

Items.xml

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MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Bedienungsanleitung Seite 97