Re: [rules-users] Declared Types with large number of fields

Hi. I am using declared types in .drl rule rule. When I kept the number of fields in a declared type low, drools works fine. When I am increasing the number of fields in a declared type to 300 or even more, drools raising an exception. Particularly, it is giving this. ava.lang.ClassFormatError: Too many arguments in method signature in class file com/sample/Project at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:615) at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:254) at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237) at org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at org.drools.base.ClassTypeResolver.resolveType(ClassTypeResolver.java:155) at org.drools.compiler.PackageBuilder.processTypeDeclarations(PackageBuilder.java:2049) at org.drools.compiler.PackageBuilder.mergePackage(PackageBuilder.java:1218) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:829) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:467) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:673) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34) at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:67) at com.sample.DroolsTest.main(DroolsTest.java:24) I suspect, it is something to do with creating class, constructor with so many arguments at run time. I am looking for a solution, something like declared types, or a workaround. The purpose for which I am using Drools limits to use the traditional Java classes, or defining a Java class. Also, is there any way, to perform calculations, or value propagations. That, Drools could assume some value to a variable given a certain constraint on it. For example, x > 6 && x < 9, Drools could assume x as 7 or 8 and fire rules? Thank you. Phani -- View this message in context: http://drools.46999.n3.nabble.com/Declared-Types-with-large-number-of-fie... 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