Examples with MVELRule org.jeasy.rules.mvel.MVELRule used on opensource projects

Example 1 with MVELRule

use of org.jeasy.rules.mvel.MVELRule in project easy-rules by j-easy.

the class Launcher method main.

public static void main(String[] args) throws FileNotFoundException {
    // create a person instance (fact)
    Person tom = new Person("Tom", 14);
    Facts facts = new Facts();
    facts.put("person", tom);
    // create rules
    MVELRule ageRule = new MVELRule().name("age rule").description("Check if person's age is > 18 and marks the person as adult").priority(1).when("person.age > 18").then("person.setAdult(true);");
    MVELRule alcoholRule = MVELRuleFactory.createRuleFrom(new File("src/main/java/org/jeasy/rules/tutorials/shop/alcohol-rule.yml"));
    // create a rule set
    Rules rules = new Rules();
    rules.register(ageRule);
    rules.register(alcoholRule);
    // create a default rules engine and fire rules on known facts
    RulesEngine rulesEngine = new DefaultRulesEngine();
    System.out.println("Tom: Hi! can I have some Vodka please?");
    rulesEngine.fire(rules, facts);
}