RE: [Springframework-developer] java.util.Map fields and commons validator

[Baum, K. <Kar...@Ta...>]

There is one other slight issue I noticed with mapped properties.  In
addition to supporting get/set methods that work with a Map object,
Struts suports methods that take key value pairs.  For example:

	public void setValue(String key, String value);

	public String getValue(String key);

This feature allows the developer to abstract the underlying
implementation.  It also guards against external code overwriting your
Map.  Spring does not support this because it only uses java bean
introspection to find all properties in a bean.  These Map methods are
not properties to Java. =20

I think in addition to supporting all get/sets picked up by the Bean
Introspecter, we should consider supporting this other get/set syntax
for Mapped properties.


 =20

-----Original Message-----
From: spr...@li...
[mailto:spr...@li...] On =
Behalf
Of Hunter Kelly
Sent: Wednesday, April 14, 2004 5:35 AM
To: spr...@li...
Subject: Re: [Springframework-developer] java.util.Map fields and
commons validator

I have to say that I personally prefer [] syntax for both indexed and
mapped
properties, it's a more natural fit with scripting languages, and to me
it
just makes more sense - it's an indexing operation, not a method call!

My point is that it'd be great to support other syntaxes, but please
keep the [ syntax.

H

On Wednesday 14 April 2004 07:44, j=FCrgen h=F6ller [werk3AT] wrote:
> Karl,
>
> Agreed, it makes sense to be consistent with Commons BeanUtils /
Commons
> Validator / Struts here, while still supporting the current syntax.
Our
> current syntax is somewhat analogous to JSTL EL, but I don't mind
> supporting further syntactic options, as long as they don't introduce
> parsing problems.
>
> This should be pretty trivial to add, so I'll look into it this
weekend.
>
> Juergen
>
>
> ________________________________
>
> Von: spr...@li... im Auftrag
von
> Baum, Karl Gesendet: Mi 14.04.2004 04:19
> An: spr...@li...
> Betreff: [Springframework-developer] java.util.Map fields and commons
> validator
>
>
>
> I have encountered an issue in regards to validating beans backed by =
a
> Map object while using the spring commons validator component.  My
form
> is made to work with key value pairsbacked as a map.  It has a field:
>
>      /**
>       * @return
>       */
>      public Map getValue() {
>          return valueMap;
>      }
>
>      /**
>       * @param map
>       */
>      public void setValue(Map map) {
>          valueMap =3D map;
>      }
>
> The problem isn't specific to the validator adapter.  The problem has
to
> do with the way Spring symbolizes a mapped property in the
> BeanwrapperImpl class.  Spring uses a '[' where as commons validator
and
> struts use '('.  Another words a mapped property of firstName would
look
> like this in Spring:
>
>  value[firstName]
>
> and this in commons validator:
>
>  value(firstName)
>
> Commons validator uses '[' for indexed properties.  Spring uses '['
for
> both indexed and Mapped properties.  I think the best place to fix
this
> problem is on the Spring side in the BeanWrapperImpl.  We might as
well
> be consistent with struts and commons validator in regards to our
> indexed and mapped property sytax.  Perhaps we can support both
> syntaxes.
>
> Any thoughts?
>
> Karl
>
>
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