What about some proxy classes to support CFC invocation from Java? I
realize you can sort of do this using the event gateway, but I'm
talking about something a little more integrated. I think it could
really be useful for those who want to convert their model layer to
Java, but already have a lot of existing CFCs that would be
impractical to convert all at once.
On 5/16/05, Barney Boisvert <[EMAIL PROTECTED]> wrote:
> Since it's impossible for a given thread to be handling more than one
> exception at a time, you can cheat the system a little using a request
> variable. Reserve request.exceptionInfo or whatever for exception
> information, and then write a custom throw tag that accepts and
> object, stores it in that request variable, and then generates a
> standard CF exception with the name of the object as the type. Then
> catch that type as you see fit, and write a custom catch tag that
> accepts a 'name' attribute, and uses it to set the object to that name
> (so you have a reference to the 'exception' object).
>
> example.cfm:
> <cfimport prefix="ex" taglib="/tags/exception" />
> <cftry>
> <ex:throw object="#createObject('component',
> 'my.custom.exception').init('test exception')#" />
> <cfcatch type="my.custom.exception">
> <ex:catch name="e" />
> <cfoutput>An exception was caught: #e.getMessage()#</cfoutput>
> </cfcatch>
> </cfcatch>
>
> thow.cfm:
> <cfset request.exceptionObject = attribute.object />
> <cfthrow type="#some.magic.expression.using.metadata#" />
>
> catch.cfm:
> <cfset caller[attributes.name] = request.exceptionObject />
>
> I'll grant you it's not amazingly elegant, but it works very well,
> particularly with throwing validation exceptions from your business
> layer to your UI, because you can package all the errors for a given
> object into one exception.
>
> cheers,
> barneyb
>
> On 5/15/05, Roland Collins <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> > <cfset myException = CreateObject("component"
> > "cfc.CustomValidationException").init("An error occurred
> > while validating the data.")>
> >
> > <cfset myException.addInvalidData(someBadInfo)>
> >
> > <cfset myException.addInvalidData(moreBadInfo)>
> >
> > <cfset myException.addInvalidData(someWorseInfo)>
> >
> >
> >
> >
> >
> > <cfthrow exception="myException">
> >
> >
> >
> > While it's not at the top of my list, I too think it would be a nice
> > feature. I hate having to encode data in strings and lists.
> >
> >
> >
> > Roland
>
> --
> Barney Boisvert
> [EMAIL PROTECTED]
> 360.319.6145
> http://www.barneyb.com/
>
> Got Gmail? I have 50 invites.
>
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