Replacing many if statements

I recently was asked by a colleague how to get rid of a staggering amount of if statements.

They all seem to have remarkable similarities, as is obvious from the code below.

So I initially thought about changing it to:

Of course it is also possible to create a static Map, that contains Functions. That way, the ValidationMessage instances are only created once. It depends on your needs, really.

In the end, I don't know if the improvement is really that huge.

It's closer together at least, but I feel it could be improved.

Running Mariadb on the Raspberry Pi

This is going to be a small blurb, on what I did to get this working.

Nothing out of the ordinary, really.

$ apt-get install mariadb-server
$ cd /etc/mysql/mariadb.conf.d
$ joe 50-server.cnf
# started vi and replaced 127.0.0.1 with 0.0.0.0
$ service mysql restart

And of course allow the user accounts to access mariadb remotely over the network.

Attention! I'm only doing this locally on a testing server! It's not a great idea to run mariadb connections remotely if you do not have to.

GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.100.%' IDENTIFIED BY 'my-new-password' WITH GRANT OPTION;