This is a PHPStorm/IntelliJ IDEA Scripted Extension that generates an Entity and Repository class from one or more database tables.
On MacOS, copy the file src/Repo Pattern Generator.groovy into
$HOME/Library/Preferences/PhpStorm2018.1/extensions/com.intellij.database/schema
(Adjust the path according to your product and version.)
In the Database view, right click a table and select Scripted Extensions / Repo Pattern Generator.
The generator assumes that there is a primary key on one field and this field is an auto increment integer.