Re: [rules-dev] use of declared facts

Thanks Edson, BTW, I've tried to instantiate an internal fact in a rule with MVEL dialect but it didn't worked. I've tried this in M4. I' haven't tried it yet in M5. Is this a known issue or should I create a new JIRA with test case? Best Regards, Michal On Tue, Jan 27, 2009 at 2:31 PM, Edson Tirelli <tirelli(a)post.com&gt; wrote: > > Michal is correct from the point of view of the application. That is > required because the actual classes are generated at compile time and not > visible to the application classpath. > > Although, that is not the only way. Inside your rules, they are visible > and you instantiate them the same way as you instantiate any other java > Pojo: > > rule xyz > when > // sometihng > then > Person p = new Person(); > p.setName( "Bob" ); > insert( p ); > end > > Also, if you use Guvnor to define your model, Guvnor is capable of > generating a jar file for you with the generated classes. This way you can > download the jar and add it to the classpath of your application and use it > as any POJOs too. > > []s > Edson > > > 2009/1/27 Michal Bali <michalbali(a)gmail.com&gt; > > Look at this unit test for some examples: >> >> http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-compiler... >> >> // Retrieve the generated fact type >> FactType cheeseFact = ruleBase.getFactType( >> "org.drools.generatedbeans.Cheese" ); >> >> // Create a new Fact instance >> Object cheese = cheeseFact.newInstance(); >> >> // Set a field value using the more verbose method chain... >> // should we add short cuts? >> // cheeseFact.getField( "type" >> ).getFieldAccessor().setValue( cheese, >> // >> "stilton" ); >> >> cheeseFact.set( cheese, >> "type", >> "stilton" ); >> assertEquals( "stilton", >> cheeseFact.get( cheese, >> "type" ) ); >> >> >> On Tue, Jan 27, 2009 at 2:02 AM, Oleg Zenzin <zenzin(a)intalio.com&gt; wrote: >> >>> There's now possibility to declare facts in the drl, like: >>> >>> declare Person >>> name: String >>> age: int >>> end >>> >>> My question is how do I instantiate this fact object during runtime? Do >>> I still need to have class Person compiled and existing somewhere in >>> classpath, or there's a helper class which I can use "fake the fact", >>> something like: >>> >>> FakeFact person = FakeFact("Person"); >>> person.setField("name", "Oleg"); >>> person.setField("age", "42"); >>> session.insert(person); >>> >>> Or there's another nicer way? >>> >>> Thank you, >>> -Oleg Zenzin >>> >>> _______________________________________________ >>> rules-dev mailing list >>> rules-dev(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/rules-dev >>> >>> >> >> _______________________________________________ >> rules-dev mailing list >> rules-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-dev >> >> > > > -- > Edson Tirelli > JBoss Drools Core Development > JBoss, a division of Red Hat @ www.jboss.com > > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > > _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev