Hi, basically it's the same problem this guy had http://stackoverflow.com/questions/11485122/non-template-dynamic-rules-in... <http://stackoverflow.com/questions/11485122/non-template-dynamic-rules-in... , but the links in that question don't work. I'd like to dynamically add rules to a running session, but can use 'eval' only in the very first one. If I add a second rule like the following, it won't execute: --- String test2 = "\nrule id4" + "\nwhen" + "\neval(0 == 0)" + // if this eval is removed, "done2" is inserted "\nthen" + "\ninsertLogical( \"done2\" );" + "\nend"; kbuilder.add(ResourceFactory.newByteArrayResource(test2.getBytes()), ResourceType.DRL); session.getKnowledgeBase().addKnowledgePackages(kbuilder.getKnowledgePackages()); fired = session.fireAllRules(); System.out.println(fired); // 0 effects = session.getObjects(); assertTrue("fired", effects.contains("done2")); // fails --- You can see the complete Test at http://codetidy.com/6206/ I'm also not sure if this is the correct way to dynamically add rules, so please let me know, if there's a better way to add rules from strings. How can I dynamically add new rules to a running session and still use eval? -- View this message in context: http://drools.46999.n3.nabble.com/Dynamic-Rules-and-Eval-tp4024908.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Which Drools version do you use? On 14/07/2013, k <rrdh(a)gmx.net&gt; wrote: > Hi, > basically it's the same problem this guy had > http://stackoverflow.com/questions/11485122/non-template-dynamic-rules-in... > <http://stackoverflow.com/questions/11485122/non-template-dynamic-rules-in... > > , but the links in that question don't work. > > I'd like to dynamically add rules to a running session, but can use > 'eval' > only in the very first one. If I add a second rule like the following, it > won't execute: > > --- > > String test2 = > "\nrule id4" + > "\nwhen" + > "\neval(0 == 0)" + // if this eval is removed, "done2" is inserted > "\nthen" + > "\ninsertLogical( \"done2\" );" + > "\nend"; > > kbuilder.add(ResourceFactory.newByteArrayResource(test2.getBytes()), > ResourceType.DRL); > session.getKnowledgeBase().addKnowledgePackages(kbuilder.getKnowledgePackages()); > > fired = session.fireAllRules(); > System.out.println(fired); // 0 > effects = session.getObjects(); > assertTrue("fired", effects.contains("done2")); // fails > > --- > > You can see the complete Test at http://codetidy.com/6206/ > > I'm also not sure if this is the correct way to dynamically add rules, so > please let me know, if there's a better way to add rules from strings. > > How can I dynamically add new rules to a running session and still use > eval? > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Dynamic-Rules-and-Eval-tp4024908.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users >

Ah, thanks for letting me know! I'll try an earlier version then. On Sun, Jul 14, 2013 at 8:54 PM, Wolfgang Laun <wolfgang.laun(a)gmail.com&gt;wrote: > It's a bug, possibly a regression from 5.2.0 that has been in 5.3.0, > 5.4.0 and is still in 5.5.0. > > It should be very simple to add http://codetidy.com/6206/ as a test > case so that this will be fixed. > > -W > > > On 14/07/2013, Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; wrote: > > Which Drools version do you use? > > > > On 14/07/2013, k <rrdh(a)gmx.net&gt; wrote: > >> Hi, > >> basically it's the same problem this guy had > >> > http://stackoverflow.com/questions/11485122/non-template-dynamic-rules-in... > >> < > http://stackoverflow.com/questions/11485122/non-template-dynamic-rules-in... > > > >> > >> , but the links in that question don't work. > >> > >> I'd like to dynamically add rules to a running session, but can use > >> 'eval' > >> only in the very first one. If I add a second rule like the following, > it > >> won't execute: > >> > >> --- > >> > >> String test2 = > >> "\nrule id4" + > >> "\nwhen" + > >> "\neval(0 == 0)" + // if this eval is removed, "done2" is inserted > >> "\nthen" + > >> "\ninsertLogical( \"done2\" );" + > >> "\nend"; > >> > >> kbuilder.add(ResourceFactory.newByteArrayResource(test2.getBytes()), > >> ResourceType.DRL); > >> > session.getKnowledgeBase().addKnowledgePackages(kbuilder.getKnowledgePackages()); > >> > >> fired = session.fireAllRules(); > >> System.out.println(fired); // 0 > >> effects = session.getObjects(); > >> assertTrue("fired", effects.contains("done2")); // fails > >> > >> --- > >> > >> You can see the complete Test at http://codetidy.com/6206/ > >> > >> I'm also not sure if this is the correct way to dynamically add rules, > so > >> please let me know, if there's a better way to add rules from strings. > >> > >> How can I dynamically add new rules to a running session and still use > >> eval? > >> > >> > >> > >> -- > >> View this message in context: > >> http://drools.46999.n3.nabble.com/Dynamic-Rules-and-Eval-tp4024908.html > >> Sent from the Drools: User forum mailing list archive at Nabble.com. > >> _______________________________________________ > >> 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 >