Autowiring in Components

[flex-guse]

Hi,

I have some difficulties with SAS and Autowiring in my project.

I use: Flex 4 Final, Flashbuilder 4 final, SAS 1.0-RC1. My view contains of spark components whereever spark components are available.

If I try to use Autowiring in my Main.mxml (root application) I can see in the debug that the member variable is autowired.
But if I try to do so with a component ( Flashbuilder -> New -> Component ) which is somewhere deep in my package structure, no Autowiring is done.

My basic idea is to use the IOperation pattern to build services which can be easily injected into the PresentationModels.

What I've done so far:
used compiler option -keep-as3-metadata += Autowired

put the defaultAutowiringStageProcessor in my application context

<object id="defaultAutowiringStageProcessor" class="org.springextensions.actionscript.stage.DefaultAutowiringStageProcessor"/>

defined my PresentationModel in application context

	<object id="userViewPM" class="de.test.presentation.usermanagement.UserViewPresentationModel" depends-on="userService">
		<property name="userService" ref="userService" />
	</object>

defined autowired member variable

<?xml version="1.0" encoding="utf-8"?>
<s:VGroup xmlns:fx="http://ns.adobe.com/mxml/2009" 
		  xmlns:s="library://ns.adobe.com/flex/spark" 
		  xmlns:mx="library://ns.adobe.com/flex/mx">
	<fx:Declarations>
		<!-- Platzieren Sie nichtvisuelle Elemente (z.*B. Dienste, Wertobjekte) hier -->
	</fx:Declarations>
	
	<fx:Script>
		<![CDATA[
			
			[Autowired]
			[Bindable]
			public var pm:UserViewPresentationModel;
						
		]]>
	</fx:Script>
	
	<s:Group width="100%">
		
		<s:Label text="Search" />
		<s:TextInput id="inputSearch" />
		<s:Button label="search" click="{pm.findUsers(inputSearch.text)}" />
		
		<s:layout>
			<s:HorizontalLayout />
		</s:layout>
		
	</s:Group>
	
	<mx:DataGrid width="100%" height="100%" dataProvider="{pm.userList}">
		
		<mx:columns>
			<mx:DataGridColumn headerText="name" dataField="name" />
		</mx:columns>
		
	</mx:DataGrid>
	
</s:VGroup>

Is my approach totally wrong?

Regards,
Christoph

[666shooter]

Hey Christoph,

can you post a sample app that demonstrates the problem? I have a vague idea what the problem might be, but I'm not sure so I'd like to examine the code form upclose if that's possible.

thanks in advance,

cheers,

Roland

[flex-guse]

-- removed because it contained rubbish --

[flex-guse]

Hi Roland,

I found the problem while creating the problem example application

The problem was when to call the Spring Actionscript method to load the ApplicationContext.

Example taken from cafe-townsend:

			private function creationCompleteHandler(event:FlexEvent):void {
				_appContext.addConfigLocation("application-context.xml");
				_appContext.addEventListener(Event.COMPLETE, handleComplete);
				_appContext.addEventListener(IOErrorEvent.IO_ERROR, applicationContext_ioErrorHandler);
				_appContext.load();
			}

When I had the Autowiring problems, I called the method in the 'initialisation' phase of my main application.
If I call the method in the 'creationComplete' phase everything works.

<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" minWidth="400" minHeight="300" creationComplete="creationCompleteHandler(event)">

I should read the examples!

Thank you for your help,
Christoph

[666shooter]

Hey Christoph,

great to hear its working for you now! Good luck with your project!
If you want to be completely on the safe side then call the creationCompleteHandler from the applicationComplete event, that way you can be sure the stage is completely ready.

cheers,

Roland