Building Rule-Validator: Why I Built a Java Annotation-Based Rule Engine After 3 Years of Fighting Business Rules
Let me tell you a story. For three years, I've been fighting the same battle in enterprise Java development: business rule validation.
Honestly, every time a new requirement comes in like "this order must be approved if amount > 10000 AND user level > 3 AND discount < 0.1", I'd end up with a 500-line method full of if-else that nobody wants to touch. Sound familiar?
I tried every existing solution:
Drools: Too heavy, requires learning a new DSL, impossible to debug
