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chamber-of-algorithms

The playground where I learn algorithms, languages and programming

Person class is not optimal due to lot of usage of primitive data types (Primitive Obsession lol :D)
We have a Object Oriented Model ; To achieve rich domain model avoid primitives most of the times.
Decide what makes two Entities same embeddable insure value objects
How to make sure class is immutable ex. Money class make sure BigDecimal is immutable ? implement MoneyAttributeConverter class as we do for JPA Attribute Converters add methods like Money of DbData
How to make sure api is receiving something valid from UI and how to provide DTO classes ? validate json values; Precondition can be applied if using json we can make fields final you can use annoatations on fields you can make classed immutable even if when passing to a view
Collections.unmodifiableList(list) vs Lists.immutable.ofAll(items) ? the performance should not matter that much ;