After I asked the question, I realized that getters are probably
always required so EL expressions can access them during view
rendering (I could be wrong about that though)
What threw me off was that a couple of the examples in the stripes
validation reference show the Validation annotations on the field
definitions. I assumed this meant it could bind to fields directly.
If not, how do annotations on fields relate to the property
accessors? Is there an implicit assumption that the name of the
field and the accessors match (or is that part of javabean spec?)
Example:
@Validate(required=true)
private String name_;
public String getName(){return name_;}
public void setName(String name){ name_=name;}
I don't get how stripes would know what validation rules to run in
this case...(the request would have a "name" parameter and therefore
binding would call the setName right?) but since I've annotated the
field and not the setter.. how would it know what to do?
I tried removing the accessors and using "name_" as a request
parameter but that didn't work either. No binding, no validation.
This isn't a serious issue or drawback, I would just like to
understand how it works.
On Wed, Jun 11, 2008 at 4:54 PM, Levi Hoogenberg <[EMAIL PROTECTED]
> wrote:
Something else that might work for you is using validation
expressions:
@Validate(expression = "(not includeName) or (includeName ne null)")
public String getName() {return name;}
(See http://mc4j.org/confluence/display/stripes/Validation+Reference)
The disadvantage, however, is that you have to express all of your
validations in expressions, which could lead to rather complex
expressions (and pretty generic error messages).
On your other point, I don't think omitting property accessors is
something Stripes supports. It would be nice if Stripes could bind
public/protected fields, though.
Regards,
Levi
On Wed, Jun 11, 2008 at 10:18 PM, Ross Sargant <[EMAIL PROTECTED]>
wrote:
> Hi Dave,
> Thanks for the snippet, it is helpful assuming the only option
I have is
> to write code myself to handle this. I was curious if it was
possible to set
> up dependencies on validation rules between fields solely using
annotations
> and have stripes handle everything. I remember playing around
wtih the
> Struts validator back in the day and it had something along those
lines.
>
> Thinking out loud here but something along lines of
>
> @Validate(on="search",when="useRoom=true")
> private String roomCriteria_;
>
> Of course, it is a big can of worms to say how much flexibility
"when" could
> have and how this works if "when" fields also need validation,
but simply
> checking that one (or possibly more) other parameter have a
certain value
> would handle my scenario.
>
> On a side note, is there anything special I need to do to have
validation
> work directly with fields?
> I'm using 1.5.0 RC1 and binding doesn't work at all if the fields
are
> private, if the fields are public binding works but not
validation. If I use
> traditional get/set pairs..everything works fine.
>
> Using Jetty as my web-container..
>
>
>
> On Wed, Jun 11, 2008 at 11:56 AM, DaveMark
<[EMAIL PROTECTED]> wrote:
>>
>> Hi Ross,
>>
>> Would this be of use to you?
>>
>>
>> @ValidationMethod(on="division")
>> public void avoidDivideByZero(ValidationErrors errors) {
>> String skip = getContext().getRequest().getParameter("skip");
>> if( skip != null && !"".equals(skip) )
>> {
>> return; //do not validate
>> }
>>
>> if (this.numberTwo == 0) {
>> errors.add("numberTwo",
>> new SimpleError("/ by zero not allowed.")
>> );
>> }
>> }
>>
>> Cheers,
>>
>> DJDaveMark
>>
>>
>>
>>
>> >
----------------------------------------------------------------------
>> > Date: Tue, 10 Jun 2008 13:49:48 -0400
>> > From: "Ross Sargant" <[EMAIL PROTECTED]>
>> > Subject: Conditional Validation
>> > To: Stripes-users@lists.sourceforge.net
>> >
>> > Hi,
>> > Is it possible to have validation in stripes run
conditionally based
>> > on
>> > other request parameters?
>> >
>> > My scenario is that I have a search form with several different
search
>> > options.
>> > Each search option has a checkbox which activates that criteria
for the
>> > search and a corresponding input control (either a text-box or
>> > drop-down)
>> > for the criteria value.
>> >
>> > Is there a way, without writing much code myself ,to have
stripes handle
>> > the
>> > validation of the free-form text entry ONLY when the
corresponding
>> > check-box
>> > is selected?
>> > I looked at DontValidate and the "on" annotation but neither
seems like
>> > it
>> > would fit the bill here. I know I can write my own code to run
stripes
>> > validators based on the checkbox state but obviously I'd like
to avoid
>> > that.
>> >
>> > This seems like a pretty common way of building a search form
with
>> > different
>> > options so I'm suprised I'm having difficulty with it.
>> >
>> > Is there something I've missed here that would make this
easier? Another
>> > way
>> > of setting up the page controls perhaps?
>> >
>> > Thanks,
>> >
>> > --
>> > Ross Sargant
>> >
>> > TVR Communications LLC
>> > Software Engineer
>> > 3275 W Hillsboro Blvd,Suite 300,Deerfield Beach, Florida,33442
>> >
>> > http://www.tvrc.com
>> _
>>
>>
>>
>>
>>
>>
>>
>>
>> _
>>
>>
>> __________________________________________________________
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>>
>>
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>
>
>
> --
> Ross Sargant
>
> TVR Communications LLC
> Software Engineer
> 3275 W Hillsboro Blvd,Suite 300,Deerfield Beach, Florida,33442
>
> http://www.tvrc.com
>
> p: 954-571-2017 x2108
>
> email: [EMAIL PROTECTED]
>
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Ross Sargant
TVR Communications LLC
Software Engineer
3275 W Hillsboro Blvd,Suite 300,Deerfield Beach, Florida,33442
http://www.tvrc.com
p: 954-571-2017 x2108
email: [EMAIL PROTECTED]
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