Thanks for the tutorial. I was able to implement namespaces to create access restricted methods successfully except in one instance. Can methods declared with a custom namespace be overwritten? I have been unsuccessful in doing so. Here is a short sample:

// secret.as
package {
public namespace secret = "http://www.example.com/secret";
}

// Base.as
package {
import secret;
public class Base {
public function Base() {
}

secret function test():void {
trace("Base test");
}
}
}

// Extended.as
package {
import secret;
public class Extended extends Base {
public function Extended() {
}

override secret function test():void {
trace("Extended test2");
}
}
}

If I mark test() with override I get "1004: Namespace was not found or is not a compile-time constant."
If I remove override I get "VerifyError: Error #1053: Illegal override of test in Extended."
Is this not possible? Is there a workaround? Thanks.

Cool. Thanks for making this! Was wondering how that use namespace worked. I have seen it used in some mvc frameworks.

Great post. I love the idea of assisting developers so they only seeing the methods via intellisense (of Flex Builder) for methods they need to see. I created a new demo to show that off. http://www.blog.rivello.org/?p=422

What about defining variables in the namespace file? For example, in flash authoring there is the compiler option:

CONFIG::FLASH_AUTHORING

'CONFIG' is the namepace and 'FLASH_AUTHORING' is a variable. Which seems to be a boolean. cause I can turn it on and off with:

-define=CONFIG:: FLASH_AUTHORING,false

Do you mind saying what that class looks like? is it:

package
{
public namespace CONFIG;
public var FLASH_AUTHORING:Boolean;
}

I am trying to turn off and on classes. When I do this

package
{
CONFIG::FLASH_AUTHORING
public class Main extends Sprite
{

}
}

The class can be skipped with that compiler option. I would like to create my own namespace files with similar functionality, but my own naming conventions.

very helpful, thanks for your uFlash presentation too!

Great tutorial!