如何使我的触发器在类路径（h2 数据库）中可用

Question

当我调用查询时：

st.execute("create trigger myTrigger after insert on NEWPOPULATION for each row call "\NewPopulationTrigger\" ");

控制台写：Class NewPopulationTrigger not found

我应该如何遵循"The trigger class must be available in the classpath of the database engine"这句话 - 我该如何实现它？

我的研究： The example of my issue /
adding classpath in scala

Answer 1

包必须在类名的左边。

在 H2 示例中。包是org.h2.samples，类是TriggerSample

CREATE TRIGGER INV_INS AFTER INSERT ON INVOICE
FOR EACH ROW CALL "org.h2.samples.TriggerSample"

在您的情况下，干净的方法是在 java 中询问全名：

st.execute("create trigger myTrigger after insert on NEWPOPULATION for each row call \""+NewPopulationTrigger.class.getName()+"\"");