The rule should be called "B Number consists of a single character that is not a digit".

In patterns, "[...]" means a single character, and matches succeeds if all of the target string matches the pattern.

Try
... matches ".*[^0-9].*"

-W

On 27 June 2011 15:41, esstrata <esstrata@yahoo.es> wrote:
Hi,

 I've tried several options but none working so I welcome any help.

* I'm using Drools 5.1.1.
* I succesfully insert several List<String> into Working Memory and I'm able
to printout them with a debug rule.
* The problem is, when I try to access a position in a list I get no match
even though I have values that should match. Here is the relevant code:

rule "B Number has characters other than numbers"
       dialect "mvel"
       when
               $traffic_row : List(this[5] matches "[^0-9]")
       then
               System.out.println("row found" + $traffic_row)
       end


Thank you in advance


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