MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guide de l'utilisateur télécharger pdf (Page 223)

Build a distributed application with the ActionScript object adapter 223

Create variables

In this section, in the script block you declare variables for objects that you will use.

Directly below the import statements in the script block, add the following variable

declarations:

public var noteObj:Object = new Object();

public var getToken:AsyncToken;

private var ds:DataService;

[Bindable]

public var noteProxy:ObjectProxy;

Initialize the application

In this section, you write an event listener method that creates a DataService component and

calls the DataService component’s

getItem() method, which retrieves the current note text.

1. Add the following method declaration directly under the variable declarations to create an

event listener:

public function initApp():void {

}

Add the boldface text to the initApp() method to create a DataService component when

the

initApp() method is called. The ds DataService component connects to the server-

side

notes Data Management Service destination, which is specified in its one argument.

public function initApp():void {

ds = new DataService("notes");

}

Add the boldface text to the initApp() method. This code adds a Result event listener to

the DataService component and sets initial values for the noteObj object’s

noteId and

noteText properties. It also sets the value of the getToken object to the AsyncToken object

that the DataService component’s

getItem() method returns.

The ActionScript object adapter uses the

noteId property as a unique identifier for each

noteObj object, and the

noteText property contains the note text.

public function initApp():void {

ds = new DataService("notes");

ds.addEventListener(ResultEvent.RESULT, resultHandler);

ds.autoCommit = false;

noteObj.noteId = 1;

noteObj.noteText = "Type your notes here and share them with other

clients!";

getToken = ds.getItem(noteObj, noteObj);

}

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MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guide de l'utilisateur Page 223

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