Java code execution Jira plugin installation and removal

[Eugene Ts]

Hi there.

I'm developing a Jira plugin on Java that will need to connect to DB to custom schema and execute some code (liquibase) for DB preparation (create tables, datas and so on), 

So the question is, is there any place that is called only one time - when you install the addon and when you remove the addon?

I.e. maybe i may override some method or add an annotation on my method?
Thanks

[Vladyslav Shyika]

Not sure, but maybe PluginEventListener annotation and PluginsEvent class is what you are looking for.