《Drools7.0.0.Final规则引擎教程》番外实例篇——默认条件的陷阱

@Test
    public void testComment(){
        KieSession kieSession = getKieSession("comments");

        for (int i = 0; i < 5; i++) {
            Object obj = new Object();
            kieSession.insert(obj);
        }

        int count = kieSession.fireAllRules();
        System.out.println("Fire " + count + " rules!");
    }

package com.rules

rule "Testing Comments"
agenda-group "comments"
when
    // this is a single line comment
    eval( true ) // this is a comment in the same line of a pattern
then
    // this is a comment inside a semantic code block
end

rule "Test Multi-line Comments"
agenda-group "comments"
when
    /* this is a multi-line comment
       in the left hand side of a rule */
    eval( true )
then
    /* and this is a multi-line comment
       in the right hand side of a rule */
end

Fire 2 rules!

$obj:Object()