User Guide

136 Chapter 7: Using Flash Remoting for Java
Getting a reference to a server-side ActionScript file
Before calling the functions of a server-side ActionScript file (with the .asr extension), you must
get a reference to the file. Place the server-side ActionScript file that you want to call in a web
application.
To get a reference to a server-side ActionScript file:
1. Import the Flash Remoting files:
import mx.remoting.Service;
2. Connect to the Flash Remoting gateway and get a reference to the server-side ActionScript file:
flashasService = new Service(
"http://localhost/flashservices/gateway"),
null,
"flash.script.FlashSample",
null,
null)
Note: There are several other ways to specify the gateway URL. For more information, see
Chapter 2, “Using Flash Remoting ActionScript,” on page 29.
The third parameter of the Service constructor is the directory structure and name of the
ASR file relative to a web application context root. In this example,
flash is the context root
of the web application,
script is a directory under the context root, and FlashSample is the
prefix of the ASR filename.
Invoking server-side ActionScript functions
After you have a reference to a server-side ActionScript file, you can use client-side ActionScript
functions to call its functions. For example, to call the following server-side ActionScript
function:
function getBiggerString(value)
{
return "Hello from SSAS " + value;
}
You could use the following client-side ActionScript code. Here, flashssasService represents
your reference to the server-side ActionScript file.
function getBiggerString()
{
pc:mx.remoting.PendingCall = flashsasService.getBiggerString(
stringInput.text );
pc.responder = new mx.rpc.RelayResponder(this, "getBiggerString_Result",
"getBiggerString_Fault");
}
To handle the function results, you use a result handler function like the following:
function getBiggerString_Result( re:mx.rpc.ResultEvent ):Void
{
stringOutput.text = re.result;
}