Re: [BeanUtils] confused over usage of ConvertUtils [SOLVED]

[Craig R. McClanahan]

Henri Yandell wrote:

On Sat, 27 Sep 2003, Sgarlata Matt wrote:

 

That's what I was thinking, which made me very displeased because I felt
that ConvertUtils should be able to do this formatting automagically.
Fortunately, ConvertUtils *is* automagical; we just weren't thinking about
Converters correctly :)  To go from String -> Date one uses a DateConverter,
so of course to go from Date -> String one uses a StringConverter.  Isn't
symmetry great?  It's funny neither of us realized this at first.
   

Not really. StringConverter's javadoc says that it takes a String and
makes it a String. The implementation probably just calls .toString() on
the Object, which isn't really what would be wanted.
 

But you can register your own converter for the java.lang.String class 
to replace this one.

Craig

[quick peek shows:

       if (value == null) {
           return ((String) null);
       } else {
           return (value.toString());
       }
]
I'd want a getFormatted() method on BeanUtils which uses a FormatUtils to
handle Object->String in the same way ConvertUtils handles String->Object.
Hen

 

----- Original Message -----
From: "Henri Yandell" <[EMAIL PROTECTED]>
To: "Jakarta Commons Users List" <[EMAIL PROTECTED]>
Sent: Saturday, September 27, 2003 1:19 AM
Subject: Re: [BeanUtils] confused over usage of ConvertUtils
   

I could be utterly wrong here, but I've always thought the Convert stuff
was String->Object, even though the API is convert(Class, Object);Object.
I think the second parameter is effectively a String for uses within
beanutils.
For Object->String, you would basically want to be looking at a Formatter
library [java.text.Format, with DateFormat being obvious choices].
Dunno though, could be a lot going on I haven't looked at much in
BeanUtils. Still trying to understand the whole Locale section.
Hen

On Fri, 26 Sep 2003, Sgarlata Matt wrote:

     

I'm sure this is a simple question, but I am quite confused.  I am
       

trying to
   

do two things using ConvertUtils
1) Convert a String of the form "19 September 2003" to a Date
2) Convert a Date to a String of the form "19 September 2003"
#1 (String -> Date) I can do no problem with my own custom Converter
       

class.
   

Does anyone know how to do #2 (Date -> String) automatically with
ConvertUtils?
Thanks!

Matt

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