ExampleChainConfig.mxml

<?xml version="1.0"?>
<!-- Parsley Configuration -->
<mx:Object xmlns:mx="http://www.adobe.com/2006/mxml"
           xmlns:chain="http://spicefactory.org/parsley/chain">

    <mx:Script><![CDATA[
        import events.*
        import commands.*;
        ]]>
    </mx:Script>

    <chain:Chain firstLink="{startup}">

        <chain:Link id="startup" commandClass="{StartupCommand}">
            <chain:LinkConnection onMessage="{LoadDefaultEnvironmentEvent.LOAD}" toLink="{loadDefaultEnvironment}"/>
            <chain:LinkConnection onMessage="{LoadSpecialEnvironmentEvent.LOAD}" toLink="{loadSpecialEnvironment}"/>
            <chain:LinkConnection onMessage="{StartupErrorEvent.ERROR}" toLink="{startupError}"/>
        </chain:Link>

        <chain:Link id="loadDefaultEnvironment" commandClass="{LoadDefaultEnvironmentModuleCommand}">
            <chain:LinkConnection onMessage="{EnvironmentLoadedEvent.LOADED}" toLink="{loadLocalConfiguration}"/>
            <chain:LinkConnection onMessage="{StartupErrorEvent.ERROR}" toLink="{startupError}"/>
        </chain:Link>

        <chain:Link id="loadSpecialEnvironment" commandClass="{LoadSpecialEnvironmentModuleCommand}">
            <chain:LinkConnection onMessage="{EnvironmentLoadedEvent.LOADED}" toLink="{loadLocalConfiguration}"/>
            <chain:LinkConnection onMessage="{StartupErrorEvent.ERROR}" toLink="{startupError}"/>
        </chain:Link>

        <chain:Link id="initializeServices" commandClass="{InitializeServicesCommand}">
            <chain:LinkConnection onMessage="{ServicesInitializedEvent.INITIALIZED}" toLink="{startupComplete}"/>
            <chain:LinkConnection onMessage="{StartupErrorEvent.ERROR}" toLink="{startupError}"/>
        </chain:Link>

        <chain:Link id="startupComplete" commandClass="{StartupCompleteCommand}"/>
        
        <chain:Link id="startupError" commandClass="{StartupErrorCommand}"/>

    </chain:Chain>

</mx:Object>