SWIZ: autowire v/s bindable

hi guys

In swizz when do i use [Bindable] v/s [Autowire]

example I have

public class CustomAction extends FormItem

{
[Autowire] public var delegate:Idelegate;
.....
}


or can i just say

public class CustomAction extends FormItem
{
[Bindable] public var delegate:Idelegate;
.....
}

which one is correct?

thanks