[jboss-user] [Beginners Corner] - JBOSSRULES: migration from drools 2.X to drools 3.X

[Thierry R.]

Hi all,

I have been using drools 2.x (before it becomes part of jboss) for about 1 year and I'm trying now to migrate my scripts to jbossrules 3.0.1.

I have made the necessary rewriting (XML => plain DRL). Unfortunatly my rules don't compile any more.

I'm wondering if there are a few regression issues :
- a function call within another function is illegal
- reduced conditional expression is illegal in the consequence part (RHS) : LV = (C)?V1:V2

I know there are work-around for these issues (helper class in the first case and if/else in the second) but I don't understand why valid java constructions don't compile anymore.

The problem occurs for sure with the janino compiler and maybe with the eclipse compiler.

Thank you for your answers

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