Hi, I'm using eclipse drools builder to develop my rules, and when I define one drools declared type in one resource and use it in a different drools resource, the declared type is not resolved. Even if the resources are in the same package. Also, when I include the files in the correct order in the knowledgeBase, everything starts working in my application. 1)Is there a way to make my eclipse drools builder find the declared type in the other resources? It shows the following error: Unable to resolve ObjectType 2)Is there a way to make the files work in any order? Now, my application works only if the declared types are with resource name alphabetically preceeding the name of the resource where the types are used. Please tell me if you need additional information. -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Import-of-declared-ty... Sent from the Drools - Dev mailing list archive at Nabble.com. _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev

Here are more details: I have one drools resource Person.drl with the following content: package testpkg declare Person name : String end And another file PersonRules.drl in the same dir with the following content: package testpkg rule "Your First Rule" when Person(name == "Bobi") then System.out.println("hi bobi"); end 1)Drools builder shows an error(Unable to resolve ObjectType person) on line Person(name == "Bobi") Is there a way to workarround the problem? 2)I construct the knowledgebase using http://grepcode.com/file/repository.jboss.com/maven2/org.drools/drools-an... and bintype=PACKAGEBINTYPE= "knowledge" and binformat:PACKAGEBINFORMAT != package. When I use PeronRules for name of the drools rules resource, the knowledgebase is built, but if I rename the file from PeronRules to 1PeronRules I get the following error: Unable to resolve ObjectType 'Person' : [Rule name='Your First Rule'] The problem with the order is, sometimes the rules filename may be loaded after the type declaration which seems to be a problem, how can I deal with this?

Any package scoped things really should go in the .package file IIRC. There is no clever resolving across multiple files (not sure if that is a valid feature request or not).

On Wed, Dec 15, 2010 at 3:13 AM, Tihomir Surdilovic <tsurdilo(a)redhat.com <mailto:tsurdilo@redhat.com>> wrote: Yep, I can reproduce what you are seeing. The order of files being read in (alphabetical/lexical order..) matters in that the DroolsCompilerAntTask will compile them one at a time: public class DroolsCompilerAntTask extends MatchingTask { .... private void createWithKnowledgeBuilder(AntClassLoader loader) throws FileNotFoundException, DroolsParserException, IOException { ... for ( int i = 0; i < fileNames.length; i++ ) { // compile rule file and add to the builder compileAndAddFile( builder, fileNames[i] ); } ... } } I'll take a look at the code and fix it up in the near future, but for now what you can do is just as Mic said to put your declared types in let's say drools.package file and make sure in your ant tasks that they get read first. In my simple test this worked fine: <target name="declaredtypes"> <compiler srcdir="ant" tofile="antout/person.rules"> <!-- classpathref="cheese.classpath" --> <include name="*.package" /> </compiler> </target> <target name="rules" depends="declaredtypes"> <compiler srcdir="ant" tofile="antout/person.rules"> <!-- classpathref="cheese.classpath" --> <include name="*.drl" /> <include name="*.brl" /> <include name="*.xml" /> <include name="*.dslr" /> </compiler> </target> since all declarations are in drools.package (or person.package or whatever you want to call it), and making sure that "rules" target depends on the "declaredtypes" target you can assure your declared types get read first. Let me know if this helps. Thanks. On 12/14/10 7:23 AM, stanka wrote: > Here are more details: > > I have one drools resource Person.drl with the following content: > > package testpkg > > declare Person > name : String > end > > And another file PersonRules.drl in the same dir with the following content: > package testpkg > > > rule "Your First Rule" > > when > Person(name == "Bobi") > then > System.out.println("hi bobi"); > > end > > 1)Drools builder shows an error(Unable to resolve ObjectType person) on line > Person(name == "Bobi") > Is there a way to workarround the problem? > 2)I construct the knowledgebase using > http://grepcode.com/file/repository.jboss.com/maven2/org.drools/drools-an... > and bintype=PACKAGEBINTYPE= "knowledge" and binformat:PACKAGEBINFORMAT != > package. > When I use PeronRules for name of the drools rules resource, the > knowledgebase is built, but if I rename the file from PeronRules to > 1PeronRules I get the following error: > Unable to resolve ObjectType 'Person' : [Rule name='Your First Rule'] > > The problem with the order is, sometimes the rules filename may be loaded > after the type declaration which seems to be a problem, how can I deal with > this? > _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-dev -- Michael D Neale home: www.michaelneale.net <http://www.michaelneale.net> blog: michaelneale.blogspot.com <http://michaelneale.blogspot.com> _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev

Thanks, this helps a lot. Do you know how to make my drools builder work also?