I knew there had to be more to this story :)
As it turns out, if you use s:param in the form:
<s:param name="x">${someObject}</s:param>
Then the tag's body content is only available as a String. There's no
way to apply a formatter to it because it gets evaluated ahead of time
by the JSP engine. On the other hand...
<s:param name="x" value="${someObject}" />
Does pass the Object into setValue so a Formatter could be used there.
The problem with that is that the s:param tag is expected to pass the
original Object value to its parent tag, not necessarily just a String.
That means it's up to the parent tag to format it correctly. And the
problem with /that/ is that some formatters require a format pattern
and/or format type, and that bit of information might be different for
each parameter.
So we're left with a few choices...
1. Add a new tag <s:format value="" [var=""] [formatType=""]
[formatPattern=""] />. One could then use it like <s:param
name="x"><s:format value="${someObject}" /></s:param>
2. Add some new attributes to s:param, such as format="true",
formatType="whatever" and formatPattern="whatever". format="true"
would be assumed if either formatType or formatPattern were
non-null. If formatType and formatPattern are not applicable for a
given parameter, then format="true" would be required as the
default would be false.
3. Do nothing. I don't like this idea :)
I really like option (1). This would be a good idea because it is useful
in many different situations and allows developers to take full
advantage of Stripes' formatting capabilities from within their JSPs.
Imagine this, given a Person class with firstName and lastName properties:
* <s:format formatType="lastNameFirst" value="${person}" /> --
Gunter, Ben
* <s:format formatType="normal" value="${person}" /> -- Ben Gunter
* <s:format value="${person}" /> -- the primary key of the object,
which is the default format
I'll do this if nobody is opposed to the idea. It solves the s:param
problem nicely and provides lots of other useful capabilities.
-Ben
Jeppe Cramon wrote:
No, I agree :)
/Jeppe
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:stripes-
[EMAIL PROTECTED] On Behalf Of Ben Gunter
Sent: 26. maj 2007 02:38
To: Stripes Development List
Subject: [Stripes-dev] stripes:param should use formatters when possible
Does anybody disagree with this?
http://mc4j.org/jira/browse/STS-374
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