|Re: [eol][evl]Handling exception in casting types [message #763419 is a reply to message #763322]
||Fri, 09 December 2011 17:11
| Steffen Zschaler
Registered: July 2009
The code you have written would not check the validity of the string. If
asInteger() is successful it will, per definition, return an integer. So
calling isKindOf (Integer) on it is redundant!
You will probably need to build a helper class of your own to provide
appropriate testing and conversion methods. Check out the 'tools'
concept in the Epsilon book.
On 09/12/2011 15:09, Paulo Alexandre wrote:
> hi everybody
> I have a class with a <<value>> string field. The purpose of this
> field is to receive any input data (integers, booleans, reals and
> strings) and then casting to the desiredtype (like Integer, Boolean,
> Real ...).
> The casting (conversion) of this <<value>> field is happening in a
> .evl file.
> In EVL i'm trying to know if the content of <<value>> field is
> consistent with the choosen type.
> for instance
> <<value>> field | choosen type true boolean
> It's ok!
> Today Integer It isn't ok because ''today'' is
> not a integer
> To do that, I've tried this (to convert from String to Integer)
> check: self.valor.asInteger().isKindOf(Integer)
> when <<value>> is an Integer, this works well but it isn't this piece
> of code raises an exception and I couldn't find a way to handling
> exception in eol or evl.
> I'd appreciate any help.
> Thanks in advance!
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