Re: [rules-users] Exception Handling in the rule consequence

Hi Wolfgang, Whats the advantage of option 2 over 1? Can you give sample code for option 2?? 2010/10/13 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; > In drl, you could use > dialect "java" > at outermost level, but one never does, because that's the default. > > I'd use option (2). > > > -W > > 2010/10/13 sumatheja <sumatheja(a)gmail.com&gt; > >> Hi Wolfgang, >> I am actually writing all the rules in a .drl and >> importing them into a guvnor. I didn't mention the dialect explicitly >> anywhere in the code. Is the default dialect MVEL. Is there a way to make >> one time declaration of dialect in my case instead of declaring it for all >> the rules. >> >> 2010/10/13 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; >> >> I'd say you are using >>> dialect "mvel" >>> There is no try/catch statement in MVEL. You have the options: >>> >>> (1) Use Java, not MVEL. >>> >>> (2) Surround the fireAllRules() with try/catch and put it in a loop >>> that's terminated >>> if there is no exception. >>> >>> -W >>> >>> >>> 2010/10/13 sumatheja <sumatheja(a)gmail.com&gt; >>> >>>> Hi All, >>>> I have a set of rules. After firing the rules if an exception >>>> occurs in a rule the following rules are not getting evaluated. So i tried >>>> writing a try catch block inside the consequence part of the rule, but then >>>> i get an error saying "'unable to build the consequence.[Error:was expecting >>>> type: java.lang.Object but found type:null]" >>>> >>>> Here follows my code >>>> >>>> >>>> *rule 'Test rule' >>>> ruleflow-group "Test Ruleflow" >>>> no-loop >>>> when >>>> $c:Car() >>>> Driver() >>>> >>>> then >>>> try{ >>>> $c.getModel() >>>> } catch (Exception Ee) { >>>> System.out.println("caught an exception: "+Ee.toString()); >>>> } >>>> end* >>>> >>>> However if i remove the try catch block it buils fine. >>>> >>>> Can anyone let me know if i'm missing something here. >>>> >>>> Thanks in advance :) >>>> -- >>>> cheers >>>> Sumatheja >>>> >>>> >>>> >>>> _______________________________________________ >>>> 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 >>> >>> >> >> >> -- >> cheers >> Sumatheja Dasararaju >> >> >> >> _______________________________________________ >> 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 > > -- cheers Sumatheja Dasararaju _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users