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干b变化会引发铁路运输方法吗?
原标题:Any way a db change can trigger a method call in Rails?

是否有任何办法改变数据库(例如插入说明)可以促使我用手提一个垃圾处理方法? 我知道观察员的情况,但这是一种复杂的情况,因为数据库是用 Java应用程序更新的。

注:铁路和 Java都与同一数据库连接。

最佳回答
  1. Polling DB by Rails app - in regular time intervals.
  2. Introduce table trigger which runs pl/ruby, pl/* or whatever to ping command-line, REST or web service of Rails app.
  3. Java app pings Rails app (via REST, SOAP etc) after DB change.

在2 &3 管道活动可以包含更多的信息,例如浏览。

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