How into in 5 min
Entities requires public empty constructor and (optional, but good to, to avoid bugs) getters and setters.
Entities could contains other Entities (then u must annotate that as @Table to create a table and @Relation to create relations between them. All fields that must be saved in database must be annotated as @Column, at least one field must be annotated as @Id which means it's primary key. Column could have default values if you initialize field in place. Also Entity could contains arrays and lists, but you must annotate them as @Array, arrays has fixed size, by default it's 10, but you can set size in annotation argument. If you decide to use List's, pay attention that in declaration field of list can only be type of List<> or ArrayList<>.
