Java: read a file when it is updated

Question

I wrote a code to read a file and update a database with is contents. I'm using timer task to do this process every 15 minutes. But I want to do this at the exact time when the file is updated/changed. Not every 15 minutes. I took a look for this but couldn't find something helpful. Can anyone help me?

Thanks.

Answer 1

You can use Java 7's WatchService to accomplish this for you. Here's the official tutorial.