Follow up from my question. I have read more from the Drools expert guide ( http://docs.jboss.org/drools/release/5.2.0.Final/drools-expert-docs/html_... ), and in Section 5.8.3.3.10.9 it talks about the str operator: Message( routingValue str[endsWith] "R2" ) However, when I try to use the str operator I get an error: no viable alternative at input 'str' in rule "Check the items of the list and remove the ones that satisfy the condition" in pattern OfferWrapper[19,26]: [ERR 102] Line 19:26 mismatched input ' "endsWith" ' expecting ']' I tried both using endsWith with quotes and without quotes and I get a similar error in both cases. Mu rule is: > import java.lang.String rule "Check the items of the list and remove the ones that satisfy the condition" lock-on-active when $wrapper : Wrapper( id == "itemId", email str[endsWith] &quot;(a)email.com&quot;, $items : list) $item : Map() from $items then $items.remove($item) end Any clue on why am I getting an error? Thanks. O. On Mon, Nov 12, 2012 at 4:44 PM, Omar Baqueiro <baqueiro(a)ooyala.com&gt; wrote: > > Hello, > > I am trying to evaluate certain data with Drools based on the end of a > string. So far, I have got the following mvel based DRL ( My Wrapper class > has the fields (with all their accessors) id, email and list): > > --- > rule "Check the items of the list and remove the ones that satisfy the > condition" > lock-on-active > when > $wrapper : Wrapper( > id == "itemId", > email.endsWith(&quot;(a)email.com&quot;) == true, > $items : list) > $item : Map() from $items > then > $items.remove($item) > end > ---- > > > However, when trying to apply this rule, I get the error: no viable > alternative at input &#39;&quot;(a)gmail.com&quot;&#39; in rule ...". > > What is the correct way to test whether a string ends with certain text > (i.e, using the String.endsWith function using MVEL) > > Thanks for any help! > > > -- > -- > Omar Baqueiro Espinosa > Software Engineer | > baqueiro(a)ooyala.com | +52 (33) 3817-0861 > www.ooyala.com | blog | @ooyala > -- -- Omar Baqueiro Espinosa Software Engineer | baqueiro(a)ooyala.com | +52 (33) 3817-0861 www.ooyala.com | blog | @ooyala _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

It seems I have to use 5.0.I am using Drools as part of a third party framework called MuleESB ( http://www.mulesoft.org/documentation/display/MULE3USER/Drools+Module+Ref... ), so I don't think I have to use the provided version. Is the str[endsWith] operator available on this 5.0 version?

Otherwise, it seems I'll have to do create my own like: http://blog.athico.com/2010/06/creating-pluggable-oprators.html

Thanks a lot. O. On Tue, Nov 13, 2012 at 2:02 AM, Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; wrote: > Which version are you using? > > 5.4.0 works for me, using either > Message( message.endsWith( "World" ) ) > or > Message( message str[endsWith] "World" ) > > -W > > On 13/11/2012, Omar Baqueiro <baqueiro(a)ooyala.com&gt; wrote: >> Follow up from my question. I have read more from the Drools expert >> guide ( >> http://docs.jboss.org/drools/release/5.2.0.Final/drools-expert-docs/html_... >> ), and in Section 5.8.3.3.10.9 it talks about the str operator: >> >> Message( routingValue str[endsWith] "R2" ) >> >> >> However, when I try to use the str operator I get an error: >> >> no viable alternative at input 'str' in rule "Check the items of the >> list and remove the ones that satisfy the condition" in pattern >> OfferWrapper[19,26]: [ERR 102] Line 19:26 mismatched input ' >> "endsWith" ' expecting ']' >> >> I tried both using endsWith with quotes and without quotes and I get a >> similar error in both cases. >> >> Mu rule is: >>> import java.lang.String >> rule "Check the items of the list and remove the ones that satisfy the >> condition" >> lock-on-active >> when >> $wrapper : Wrapper( >> id == "itemId", >> email str[endsWith] &quot;(a)email.com&quot;, >> $items : list) >> $item : Map() from $items >> then >> $items.remove($item) >> end >> >> >> Any clue on why am I getting an error? >> Thanks. >> O. >> >> On Mon, Nov 12, 2012 at 4:44 PM, Omar Baqueiro <baqueiro(a)ooyala.com&gt; >> wrote: >>> >>> Hello, >>> >>> I am trying to evaluate certain data with Drools based on the end of a >>> string. So far, I have got the following mvel based DRL ( My Wrapper >>> class >>> has the fields (with all their accessors) id, email and list): >>> >>> --- >>> rule "Check the items of the list and remove the ones that satisfy the >>> condition" >>> lock-on-active >>> when >>> $wrapper : Wrapper( >>> id == "itemId", >>> email.endsWith(&quot;(a)email.com&quot;) == true, >>> $items : list) >>> $item : Map() from $items >>> then >>> $items.remove($item) >>> end >>> ---- >>> >>> >>> However, when trying to apply this rule, I get the error: no viable >>> alternative at input &#39;&quot;(a)gmail.com&quot;&#39; in rule ...". >>> >>> What is the correct way to test whether a string ends with certain text >>> (i.e, using the String.endsWith function using MVEL) >>> >>> Thanks for any help! >>> >>> >>> -- >>> -- >>> Omar Baqueiro Espinosa >>> Software Engineer | >>> baqueiro(a)ooyala.com | +52 (33) 3817-0861 >>> www.ooyala.com | blog | @ooyala >>> >> >> >> >> -- >> -- >> Omar Baqueiro Espinosa >> Software Engineer | >> baqueiro(a)ooyala.com | +52 (33) 3817-0861 >> www.ooyala.com | blog | @ooyala >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users -- -- Omar Baqueiro Espinosa Software Engineer | baqueiro(a)ooyala.com | +52 (33) 3817-0861 www.ooyala.com | blog | @ooyala _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

rule "Check the items of the list and remove the ones that satisfy the >> condition" >> lock-on-active >> when >> $wrapper : Wrapper( >> id == "itemId", >> email.endsWith(&quot;(a)email.com&quot;) == true, >> $items : list) >> $item : Map() from $items >> then >> $items.remove($item) >> end >> ----