I've condensed the UnaryPredicate interface here. It provides both a boolean
return and a context parameter.
package org.apache.commons.functor;
public interface UnaryPredicate {
boolean test(Object obj);
}
Granted the method name doesn't seem to represent the intent of the Command
interface. How
-----Original Message-----
From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 13, 2003 7:57 PM
To: Struts Developers List
Subject: RE: Decomposing RequestProcessor -- Some Code To Play With
On Wed, 13 Aug 2003, Tom Drake wrote:
> Date: Wed, 13 Aug 2003 16:38:51 -0700
> From: Tom Drake <[EMAIL PROTECTED]>
> Reply-To: Struts Developers List <[EMAIL PROTECTED]>
> To: 'Struts Developers List' <[EMAIL PROTECTED]>
> Subject: RE: Decomposing RequestProcessor -- Some Code To Play With
>
> Forgive me if this has already been brought up, but
> jakarta-commons/sandbox/chain appears to have significant conceptual
> overlap with commons/sandbox/functor. (Command := UnaryPredicate)
>
> Any thoughts about merging these concepts?
>
> Tom
>
Functors (at least the way Rodney did them in the functor package) are
different in two very significant ways:
* They have a return type of void, so you can't
use the return value as a flag that the chain
has been completed.
* They don't pass a context around, so you have
to define some other mechanism to gain access
to the state information that your command
operates on.
I didn't like either of those two restrictions, so I don't know how much
you could really combine the two approaches.
Craig
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
