I got one doubt in your code when used in a situation
that i mentioned (transforming data from action form
to dto).
When date comes from action form, they usually come in
Strings, but in your method you verify
value instanceof Date...
This will never happen, as the value comes in String.
Am i saying something stupid???
I'm not saying your code is wrong, but not appropriate
for the situation in question.
Am i right?
--- Bryce Fischer <[EMAIL PROTECTED]>
escreveu:
> The custom converter is done independently of the
> action, form or DTO.
>
> First step is to implement the interface
> org.apache.commons.beanutils.Converter.
>
> Keep in mind that the converter you are writing uses
> the appropriate
> converter for the original class. So, if you were
> converting from a
> String to a Date, you would create a String
> converter. And vice versa,
> if you were converting from a Date to a String you
> would create a Date
> converter. Example below
>
> Then, to override the standard converters, you call:
> ConvertUtils.register(<Your converter class>, <class
> to use converter
> on>.class);
>
> First parameter is your new converter, and the
> second is the class its
> used for. I call this in a static initializer of a
> utility class, you
> just need to make sure its called before any
> validations occur, and it
> only needs to be done once.
>
> Since we are interested in customizing conversions
> from String to Date,
> I override the String converter:
>
> public class StringConverter implements Converter{
> public Object convert(Class type, Object value) {
> Object returnObj = null;
> if (value != null) {
> if (value instanceof Date){
> returnObj =
> dateFormatter.format((Date)value);
> } else if (value instanceof BigDecimal){
> returnObj =
> decimalFormatter.format((BigDecimal)value);
> } else {
> returnObj = value.toString();
> }
> }
>
> return returnObj;
> }
> }
>
> I've left out some properties, their getters and
> setters, but I think
> you get the gist of what I'm doing. Now, I register
> this converter as such:
>
> ConvertUtils.register(new StringConverter(),
> String.class);
>
> I actually have a utility class, where the register
> is done in the
> static initializer. I suppose another way would be
> to use a servlet that
> loads prior to Struts.. Or if your Actions have a
> base class, etc...
>
> Maybe there's a more elegant way of doing that. This
> is what I've come
> up with. If someone has a better way, post please,
> I'm always looking
> for more elegant ways of accomplishing stuff like
> this.
>
> Jason King wrote:
>
> > Could you point us at some code that does this?
> Do you customize in
> > the action, the form or the DTO?
>
>
>
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