So it's just a map of properties?

Joe Germuska <[EMAIL PROTECTED]> wrote: At 1:45 AM -0700 8/20/06, Paul Benedict 
wrote:
>The key attribute of set-property reads:
>
>     Since Struts 1.3, an alternate syntax is supported.  By using
>     the "key" attribute instead of the "property" attribute, you can set
>     arbitrary string properties on the Config object which is populated
>     based on the containing element.   NOTE: the "key" attribute is NOT
>     supported for  inside a 
 element.
>
>I might be glossing over a difference here, but 
>how is this "alternative syntax" better or 
>different than the "property" attribute? It 
>highlights the "arbitrary string properties" 
>feature, but I don't have problems with 
>"property" for the same thing.

This is not simply alternative syntax.  It is an 
alternative method for handling configuration. 
Before "arbitrary string properties," one was 
obliged to subclass the config object and add 
JavaBean properties with setters and getters. 
This led to a fair amount of boring code and 
configuration, including trivial subclasses, 
extra lines in struts-config.xml to specify the 
config object subclass, casts in Action classes 
when trying to read these values...

The addition of a "properties" object to all of 
the config objects reduces all of that clutter. 
It also makes it more plausible, in my mind, to 
have Struts itself accept configuration with a 
little less "commitment" - for example, the 
ComposableRequestProcessor allows for an 
alternative implementation of ActionContext to be 
specified using an "arbitrary property" 
(ACTION_CONTEXT_CLASS).  Since this area is still 
possibly subject to change/improvement, I find 
this more palatable than changing the 
ControllerConfig class and the DTD to have this 
provided as a bean property of ControllerConfig.

Hope that helps to clarify things a little bit.

Joe


--
Joe Germuska
[EMAIL PROTECTED] * http://blog.germuska.com

"The truth is that we learned from João forever to be out of tune."
 -- Caetano Veloso



                
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