Hello out there,
I am relativley new to S2 and I got stuck on a validation problem.
2 fields/properties to be set on my Action:
startDate(String)
endDate(String)
When setting a value first of all the String must be parsed into a Date
object. I know how to handle that.
The endDate must be after the startDate. And that's the problem.
I'd like to annotate the properties-setters, so an implementing
validator takes care of the validation.
sth like this.:
@CustomizableS2Validator ( message="Insuffient Start Date",
when="before", otherDate="endDate" )
public void setStartDate(String inDate) {
date = inDate;
}
Implementing a FieldValidatorSupport does not work because I only know
how to access the validated property. But I need another property of the
Action object.
I know it would be solveable by the @FieldExpressionValidator where its
expression can be filled with a complex OGNL-Expression.
But if evaluating the expression internally throws an Exception, the
evaluation does not terminate right. (I'd be fine with a negative validation
and re-jecting to the input page, but if the OGNL is not evaluateable it
passes the validation)
Another way is to validate within the executed action method. I want a
Validator.
Yet, another is to implement a Validator which accesses Porperties via
Reflection and analyzing the Annotations.
But I'd like to have a Validator object handling the validation concern.
Big question?
Is there even a way to do this.
Is it possible to customize the parameters of an annotation?
What do I have to replace for @CustomizableS2Validator
Best wondering greetings from cologne
Dirk
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