Question

我在DROOLS中有2个简单的规则来测试规则是否被触发。这是规则：

package rule2
import com.SBVR.carrental.model.Rental

rule "Your First Rule"
    when
        Rental(  )
    then
        System.out.println("Rental exist");
end

rule "Your Second Rule"
    when
    //conditions
    then
    System.out.println("Second rule");
end

我还在我的kieSession中添加了eventListener，所以我知道是否触发规则，这是我用来触发规则的代码：

KieServices service = KieServices.Factory.get();
        KieContainer kieContainer = service.getKieClasspathContainer();
        KieSession session= kieContainer.newKieSession("ksession-rules2");
        session.addEventListener(new RuleRuntimeEventListener() {
            @Override
            public void objectInserted(ObjectInsertedEvent event) {
                System.out.println("Object inserted \n"
                        + event.getObject().toString());
            }

            @Override
            public void objectUpdated(ObjectUpdatedEvent event) {
                System.out.println("Object was updated \n"
                        + "new Content \n" + event.getObject().toString());
            }

            @Override
            public void objectDeleted(ObjectDeletedEvent event) {
                System.out.println("Object retracted \n"
                        + event.getOldObject().toString());
            }
        });

        session.addEventListener(new AgendaEventListener() {

            @Override
            public void matchCreated(MatchCreatedEvent event) {
                System.out.println("The rule "
                        + event.getMatch().getRule().getName()
                        + " can be fired in agenda");
            }

            @Override
            public void matchCancelled(MatchCancelledEvent event) {
                System.out.println("The rule "
                        + event.getMatch().getRule().getName()
                        + " cannot b in agenda");
            }

            @Override
            public void beforeMatchFired(BeforeMatchFiredEvent event) {
                System.out.println("The rule "
                        + event.getMatch().getRule().getName()
                        + " will be fired");
            }

            @Override
            public void afterMatchFired(AfterMatchFiredEvent event) {
                System.out.println("The rule "
                        + event.getMatch().getRule().getName()
                        + " has be fired");
            }

            @Override
            public void agendaGroupPopped(AgendaGroupPoppedEvent event) {
            }

            @Override
            public void agendaGroupPushed(AgendaGroupPushedEvent event) {
            }

            @Override
            public void beforeRuleFlowGroupActivated(RuleFlowGroupActivatedEvent event) {
            }

            @Override
            public void afterRuleFlowGroupActivated(RuleFlowGroupActivatedEvent event) {
            }

            @Override
            public void beforeRuleFlowGroupDeactivated(RuleFlowGroupDeactivatedEvent event) {
            }

            @Override
            public void afterRuleFlowGroupDeactivated(RuleFlowGroupDeactivatedEvent event) {
            }
        });
        Rental mirrorRental = new Rental();
        session.insert(mirrorRental);
        session.fireAllRules();
        session.dispose();

这是结果：

Object inserted 
com.SBVR.carrental.model.Rental@3d4ab141
The rule Your Second Rule can be fired in agenda
The rule Your Second Rule will be fired
Second rule
The rule Your Second Rule has be fired

我的问题是：第二条规则很明显，因为没有条件。第一条规则有一个简单的条件来检查租赁是否存在。通过日志，它清楚地显示Rental已插入规则引擎。为什么第一条规则甚至没有解雇？

DROOLS中的规则不会被触发

0 个答案: