I'm trying to use a regular expression with drools but unfortunately it doesn't seem to work. I've read a lot on the mailing list but i have not found a solution yet. Keep in mind that Drools is totally new to me (i have read most of the manual) and some things are still a bit bizarre to me.

rule
"name check"

when

$form : PersonForm(firstName

matches "[a-zA-Z]*" );

then

$form.setChecked(

true);

update($form);
end

I have tested my regular expression in a simple java application and this works. I do not get a error message, but my cpu peaks to 100% and my memory mounts until 200+ mb. And this does not change until i reboot the server. (JBOSS 4.0.5).

Thanks in advance,

Jonathan.