I think your problem is in using validators: prefix in
"validators=validators:...." That tells tapestry, that your listing
validators. However, $myMaxValidator is actually a bean (your custom
validator). Thus, you need to use bean: prefix. "validators=bean:.."
If you want to use more than 1 validator on 1 component, you could do
something along these lines. This is what I did in my .page, should
give you an idea on what to do.
<bean name="required" class="org.apache.tapestry.form.validator.Required"/>
<bean name="pattern" class="org.apache.tapestry.form.validator.Pattern">
<set name="pattern" value="literal:[a-zA-Z]+"/>
</bean>
<component id="componentX" type="TextField">
...
<binding name="validators" value="{ beans.required, beans.pattern }"/>
</component>
The answer to your second question, I'm not 100% sure why it was done.
It appears that org.apache.tapestry.valid.* was written pre tapestry 4.0
and org.apache.tapestry.form.validator.* was written by Howard starting
tapestry 4.0+. I believe this was done for Hivemind reasons and tighter
integration with components (i.e. TextField). These packages use
different delegates, and that is why you're running into issues.
Perhaps one of the tapestry developers can shed more light on why this
was done.
hth,
Dennis
Julian Sinai wrote:
Hi
I'm a bit confused about validators in Tapestry 4.0.2. The doc says the
following ought to work:
import org.apache.tapestry.annotations.*;
import org.apache.tapestry.form.validator.Max;
import org.apache.tapestry.form.validator.Validator;
@ComponentClass(allowInformalParameters = false, allowBody = true)
public abstract class EditEventForm extends BaseComponent
{
@Bean(Max.class)
public abstract Validator getMyMaxValidator();
public abstract int getMyfieldval();
@Component(type="TextField", bindings =
{ "displayName=message:my-label", "value=myfieldval",
"validators=validators:$myMaxValidator,max=2000[%my-resource-bundle-error-message-key]",
"translator=translator:number"})
public abstract IFormComponent getMyField();
...
}
The fields display fine and work fine, however, validation doesn't work right
because the max value and message don't get filled in. Why?
Also, what's the difference between:
org.apache.tapestry.valid.*Validator
org.apache.tapestry.form.validator.*
It seems only org.apache.tapestry.form.validator.* will work. For example, if
I try to use IntValidator, I get an exception that it can't be instantiated.
Any help is appreciated.
Thanks,
Julian
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