Ugo Cei wrote:
> A long long time ago Carsten Ziegeler wrote:
>
>> Nearly all generators could be rewritten as sources, for
>> example the RequestGenerator could be written as a "request:"
>> protocol. But does this make sense - I would say: "No". I think a
>> protocol makes sense if several, different sources
>> (documents, pieces of information) can be obtained using this
>> protocol. For example using an FTP protocol you can fetch
>> several files from the FTP server.
>> A request protocol for example addresses only one piece of
>> information, the request.
>
>
> After more than three months, I incurred in a scenario that might
> justify the implementation of a RequestSource.
>
> Say you have an HTML form with a textarea field, where the user is
> allowed to paste an HTML (not XHTML) fragment, maybe because he is using
> some rich text editor that outputs a bunch of invalid HTML, like the MS
> rich text editor for IE or Mozilla's ComposIte [1].
>
> Moreover, say that you want to take this text and convert it to
> well-formed XML with JTidy. You could do it all with some custom action
> or XSP page or custom generator. But wouldn't it be much easier to just
> write something like:
>
> <map:generate type="html" src="request://parameters/parametername"/>
>
> ?
>
> Is there's an easier and more elegant alternative? And if there isn't
> one, if I wrote this kind of Source, would it be useful to someone else
> beside me?
A Source is a way of obtaining a piece of information.
A Generator is a way of converting it to XML.
Since all Generators need to obtain a piece of information first, it's
only logical that every Generator should work from data gotten from a
Source.
Sometimes it won't be practical, but conceptually it stands, and it adds
a great deal of flexibility.
As for the Request, we are used to it being an Object per se, but it's
really an Object *holder*, a reference.
So it's a way of obtaining Objects, not only an Object itself, so it
should be repackaged as a Source.
--
Nicola Ken Barozzi [EMAIL PROTECTED]
- verba volant, scripta manent -
(discussions get forgotten, just code remains)
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