How to communicate between my model and flex component?

I'm trying to get my Actionscript 3.0 model that links to an SQLite database using Probertson's SQLRunner class to talk to my flex component; I'm really unsure of how best to accomplish this. I have worked off a few examples, but I don't know the simplest way to tell my component the results of the SQL query. Anyone have any recommendations?

Here is some of the code, to give you an idea of what I'm working with right now.

Component

<fx:Declarations>
    <model:Patient id="editedPatient" FirstName="{FirstName.text}" /> 
</fx:Declarations>  

<fx:Script>
    <![CDATA[
        /*imports*/
        protected var _patient:Patient;

        public function get patient():Patient
        {
            r开发者_如何学Pythoneturn _patient;
        }

        [Bindable]
        public function set patient(value:Patient):void
        {
            _patient = value;
        }

        private function creationCompleteHandler(event:FlexEvent):void{
            _patient.getPatient(currentUser);
        }

        protected function save_clickHandler(event:MouseEvent):void
        {
            _patient.update(editedPatient);
        }

    ]]>
</fx:Script>

<s:TextInput id="FirstName" text="{patient.FirstName}" />
<s:Button id="save" label="save" click="save_clickHandler(event)" />

Model

    public function getPatient(PatientId:int):void {
        var stmt:String = new String();

        stmt = "SELECT * FROM Patient WHERE PatientID= @PatiendId;";
        sqlRunner.execute(stmt, {PatientId:PatientId}, loadPatient_result, Patient);

    }

    private function loadPatient_result(result:SQLResult):void
    {
        if (result.data != null && result.data.length > 0)
        {
            var Patient:Patient = result.data[0];
        }

    }

There's a few things you can do...

First, I would create a Model that follows the Singleton pattern so you can bind to any data changes in any view, or component.

Second, I would then update that singleton'd model with in the loadPatient_result method you call.

If you want to de-couple from the result and the component, you could dispatch a custom event manually that contains the patient record, have the component listen for that kind of event and update itself accordingly. Or have that view listen for that event and update accordingly really.

You're on the right track. I think Singleton is what you need.