Hi,
This is somewhere between a bug and an enhancement:
Currently the Template Editor does not support template keys for Metadata
or Attributes; i.e. your requirement is an enhancement.
You can however provide literal values formatted as template keys (e.g.
@{xx} as you have discovered); i.e. there is a bug.
The enhancement has already been reported here:
https://issues.jboss.org/browse/GUVNOR-1907
Please note, with 5.4 you can use a web-guided Decision Table.
These support BRL fragments for columns (i.e. you can define a column that
uses any feature in the BRL\Guided Rule Editor or Template Editor) and they
already support interpolation of values for both Meta-data and Attributes.
With kind regards,
Mike
On 13 August 2012 18:38, dunnlow <dunnlow(a)yahoo.com> wrote:
I'm using Guvnor 5.4
I find myself sometimes wanting to use templates to map a string to a
metadata value or timer. For example, based upon a name, set a value for
the timeout. As far as I can tell however, the only way to create a
template column in guvnor is to include the column identifier in the LHS.
For example, I have a basic rule template that checks a name (there is only
a "name" column in the template matrix). Then, I click on options, add a
timer and give it a value of "@{timeout}" I get an error - the timeout
column does not exist in the template. However, if I write a dummy
expression on the LHS like "foo" not matches timeout, the timeout column is
created and everything is great once I set the value. If I delete the
predicate that uses timeout, I get an error again for the timer attribute.
This gets really ugly because I end up having (seemingly) useless
predicates. Is there a clean way to support this functionality?
Thanks,
-J
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