[rules-dev] Decision Tables + Templates: Consistency please!

[Michael Anstis]

Closing the loop.

Implemented as proposed and seconded by Wolfgang with the additional nicety
of also checking for common auto-corrections in spreadsheet applications
(left-quote/right-quote replacing double-quote etc).

Also ensured guided templates, guided decision tables and XLS decision
tables all work consistently with empty cells and empty Strings.

Sent on the move
On 1 Aug 2014 13:42, "Wolfgang Laun" <wolfgang.laun at gmail.com> wrote:

> On 01/08/2014, Michael Anstis <michael.anstis at gmail.com> wrote:
>
> > I propose the following:
> >
> >    - For a Pattern, with no constraints we exclude the pattern (this is
> >    current XLS behaviour).
> >
> > e.g. Person( name == $name, age == $age ). If we don't provide values for
> > $name and $age we don't include the Person pattern. If a user wants to
> > include the Pattern they'd need to add a constraint "this != null".
> >
> > If we include the pattern when there are no constraints then it is more
> > difficult to provide a work-around to exclude the pattern if this is what
> > some users need (and since it's the existing behaviour; less likely to be
> > an issue for the majority of XLS users).
> >
> >
> >    - Support escaping String literals with quotes; so a user would enter
> ""
> >    or "   ". This make it obvious that the cell contains a non-null
> value.
> > The
> >    surrounding quotation marks would be stripped before being used in the
> > DRL.
>
> If the first character is not the quote character (0x22), assume that
> the value in the cell is the actual value of a String. The result to
> be used in DRL code will be quoted, and all characters will be escaped
> as required according to Java rules.
>
> If the first character is a quote character (0x22), assume that the
> value in the cell is a complete String literal, according to Java
> rules. It will be used "as is" in DRL code.
>
> my 2¢
> Wolfgang
>
>
>
> >
> >
> > WDYT? Should I put this out to the community for opinions too?
> >
> > With kind regards,
> >
> > Mike
> >
>
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