[rules-users] Drools 5 setGlobal

[Samuli Saarinen]

Removing the insert command has no effect on the outcome.

Mauricio Salatino wrote:
> yes you are right.. did you try removing the insert cmd from the second 
> code snippet?
> just to have the same scenario?
> The first code should fail as the second. With the message Unexpected 
> global [test2]
> 
> On Tue, Jun 22, 2010 at 8:40 AM, Samuli Saarinen 
> <samuli.saarinen at remion.com <mailto:samuli.saarinen at remion.com>> wrote:
> 
>     Actually I am trying to set an unexistent variable (test2) in both
>     snippets. But for some reason only the second one produces the
>     exception.
> 
>     Samuli
> 
>     Salaboy wrote:
>      > Well, in the second code snippet you are trying to set an unexistent
>      > variable called test2. For setting a global variable you need to
>      > define it first in the drl file. Greetings!
>      >
>      > - CTO @ http://www.plugtree.com
>      > - MyJourney @ http://salaboy.wordpress.com
>      > - Co-Founder @ http://www.jbug.com.ar
>      > - Mauricio "Salaboy" Salatino -
>      >
>      > On Jun 22, 2010, at 4:32, Samuli Saarinen
>     <samuli.saarinen at remion.com <mailto:samuli.saarinen at remion.com>>
>      > wrote:
>      >
>      >> Hello,
>      >>
>      >> I'm new to drools and have problems with globals or with the
>     different
>      >> behaviour of drools depending on how the globals are specified.
>      >>
>      >> I have the following simple rule:
>      >>
>      >> global String test
>      >>
>      >> rule "Global"
>      >>   when
>      >>   then
>      >>     System.out.println(test);
>      >> end
>      >>
>      >> If i run the rule with:
>      >>
>      >> KnowledgeBase kb = getKnowledgeBase("global.drl");
>      >> StatelessKnowledgeSession ses = kb.newStatelessKnowledgeSession();
>      >> ses.setGlobal("test2", "foo");
>      >> ses.execute("");
>      >>
>      >> I get the expected result of null printed
>      >>
>      >> but if I use commands:
>      >>
>      >> KnowledgeBase kb = getKnowledgeBase("global.drl");
>      >> StatelessKnowledgeSession ses = kb.newStatelessKnowledgeSession();
>      >> List<Command<?>> cmds = new ArrayList<Command<?>>();
>      >> cmds.add(CommandFactory.newSetGlobal("test2", "bar"));
>      >> cmds.add(CommandFactory.newInsert(""));
>      >> ses.execute(CommandFactory.newBatchExecution(cmds));
>      >>
>      >> I get java.lang.RuntimeException: Unexpected global [test2]
>      >>
>      >> Why is the behaviour different and which one is correct?
>      >>
>      >> Regards,
>      >>
>      >> Samuli
>      >>
>      >>
>      >> --
>      >> Remion Oy           Etävalvontajärjestelmät liiketoiminnan
>      >> Samuli Saarinen           tehostamiseen
>      >> gsm +358 (0)50 3560075
>      >> fax +358 (0)3 2125064       www.remion.com <http://www.remion.com>
>      >> _______________________________________________
>      >> rules-users mailing list
>      >> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>      >> https://lists.jboss.org/mailman/listinfo/rules-users
>      >
>      > _______________________________________________
>      > rules-users mailing list
>      > rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>      > https://lists.jboss.org/mailman/listinfo/rules-users
>      >
>      > --
>      > STOP Virus, STOP SPAM, SAVE Bandwidth!
>      > http://www.safentrix.com/adlink?cid=0
>      > -
> 
> 
> 
>     --
>     Remion Oy           Etävalvontajärjestelmät liiketoiminnan
>     Samuli Saarinen           tehostamiseen
>     gsm +358 (0)50 3560075
>     fax +358 (0)3 2125064       www.remion.com <http://www.remion.com>
>     _______________________________________________
>     rules-users mailing list
>     rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>     https://lists.jboss.org/mailman/listinfo/rules-users
> 
> 
> 
> 
> -- 
> - CTO @ http://www.plugtree.com  
> - MyJourney @ http://salaboy.wordpress.com
> - Co-Founder @ http://www.jbug.com.ar
> 
> - Salatino "Salaboy" Mauricio -
> 
> ------------------------------------------------------------------------
> STOP Virus, STOP SPAM, SAVE Bandwidth!
> www.safentrix.com <http://www.safentrix.com/adlink?cid=0>
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users



-- 
Remion Oy           Etävalvontajärjestelmät liiketoiminnan
Samuli Saarinen           tehostamiseen
gsm +358 (0)50 3560075
fax +358 (0)3 2125064       www.remion.com