Which version of drools is this? For drools 5.0.1 we just use maven to resolve the dependencies for us and it works fine. I can't obviously see any eclipse compiler in the jars that we distribute with our application.
Thomas > -----Original Message----- > From: [email protected] [mailto:rules-users- > [email protected]] On Behalf Of Abhay B. Chaware > Sent: 09 June 2011 08:06 > To: [email protected] > Subject: [rules-users] Drools in non-eclipse environment > > Has anyone tried using drools in non-eclipse env ? meaning that > org.eclipse.jdt.core_3.5.1.v_972_R35x.jar is not in the classpath ? > > Documentation says this : > > (http://docs.huihoo.com/drools/4.0.7/ch02s05.html) > > if you do not have Eclipse JDT Core in your classpath you must override the > compiler setting before you instantiate this PackageBuilder, you can either > do that with a packagebuilder properties file the ChainedProperties class will > find, or you can do it programmatically as shown below; note this time I use > properties to inject the value for startup. > > They also provide an example, but I am not able to figure out exactly how to > use this example/info. > > Here is my code : > > KnowledgeBuilder kbuilder = > KnowledgeBuilderFactory.newKnowledgeBuilder(); > kbuilder.add(ResourceFactory.newInputStreamResource(is), > ResourceType.DRL); > > where "is" is input stream containing the rule file ( .drl) > > How do I override the compiler setting ? > > I am getting a null pointer exception ( see below ) and I suspect that > overriding the packagebuilderconfiguration will fix it ? > > W/System.err(25511): java.lang.NullPointerException > W/System.err(25511): at > org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:47) > W/System.err(25511): at > org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1161) > W/System.err(25511): at > org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:637) > W/System.err(25511): at > org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java > :267) > W/System.err(25511): at > org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder > .java:459) > W/System.err(25511): at > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.ja > va:28) > W/System.err(25511): at > com.ts.DBconnector.readKnowledgeBase(DBconnector.java:146) > > > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the [email protected] and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ************************************************************************************** _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
