Apple

On May 28, 2009, at 7:17 PM, Bill Gallop wrote:

Ricardo,

Try defining your loginPageClass() like this:

public Class<? extends MPVLoginPage> loginPageClass() {
...
}

and override accordingly. Then Java will allow you to return any subclass of MPVLoginPage.

Bill
From: Ricardo J. Parada [mailto:email@hidden]
To: WebObjects-Dev Apple [mailto:email@hidden]
Sent: Thu, 28 May 2009 17:00:06 -0600
Subject: Generics question

I'm changing my code to use pageWithName(Foo.class) instead of pageWithName("Foo") through out the code.

Then I used to have a method that return the name of the login page which I changed to return the class of the login page. But then if an application wants to override that I end up with stuff like this:

public Class<MPVLoginPage> loginPageClass() {
return PPPLoginPage.class;
}

Here PPPLoginPage is a subclass of MPVLoginPage and I thought this would be allowed by java but I'm getting an error and I have not mastered generics that well yet. ;-)

Is there a better way to do this?

:-)

References:
	>Re: Generics question (From: "Bill Gallop" <email@hidden>)