Jan Normann Nielsen wrote:
Hey
I don't quite understand how this is possible.
I see the problem. I didn't realize that there were two BaseValidator
classes, one that implements Validator, and one that implements
IValidator. StringValidator extends the last one which means it can't be
used where I want it to.
Best wishes,
Jan
I have a component in my page:
<component id="nameField" type="TextField">
<binding name="value" value="ognl:name" />
<binding name="validators"
value="validator:string,required,minimumLength=3" />
<binding name="displayName" value="literal:name" />
</component>
but when the form rewinds, I get this exception:
java.lang.ClassCastException: org.apache.tapestry.valid.StringValidator
#
org.apache.tapestry.form.ValidatableFieldSupportImpl.validate(ValidatableFieldSupportImpl.java:89)
#
$ValidatableFieldSupport_106bb5cdfa5.validate($ValidatableFieldSupport_106bb5cdfa5.java)
#
org.apache.tapestry.form.TextField.rewindFormComponent(TextField.java:84)
#
org.apache.tapestry.form.AbstractFormComponent.renderComponent(AbstractFormComponent.java:115)
[snip]
That is very strange. Line 89 in ValidatableFieldSupportImpl.java says:
Validator validator = (Validator) validators.next();
But how can this generate a ClassCastException for StringValidator?
StringValidator implements Validator as far as I know.
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