确定Derby网络服务器是否正在运行文件系统或内存数据库

Question

Before my maven build's integration test phase I start a derby server using the derby-maven-plugin from carlspring, and afterwards I shut it down using the same plugin.

According to Derby's Setting attributes for the database connection URL docs:

Note: Attributes are not parsed for correctness. If you pass in an incorrect attribute or corresponding value, it is simply ignored.

Based on the create=true attribute documentation I created a URL for an in-memory database to run on the network server:

jdbc:derby://localhost:1527/memory:tariff;create=true

If incorrect attributes are ignored, how can I check that my tests are running against an in-memory DB on the network server?

Answer 1

The derby-maven-plugin keeps it's database on the file system under target/derby . Once the build has finished, you can connect to that database with a JDBC client and check the data yourself.

I'm glad to see someone is finding this plugin useful! Let me know, if you have any other questions, as I'm the main developer of the plugin.