As microservices and distributed applications quickly take over the development world - data integrity and security are more important than ever. A secure communication channel and limited data transfer between these loosely coupled systems are paramount. Most of the time, the end-user or service doesn’t need to access the entirety of the data from a model, but only some specific parts.

Data Transfer Objects (DTOs) are regularly applied in these applications. DTOs are just objects that hold the requested information of another object. Typically, the information is limited in scope. Since DTOs are a reflection of the original objects - mappers between these classes play a key role in the conversion process.

In this article, we’ll be diving into MapStruct - an extensive mapper for Java Beans.

#java #tool #mapstruct in java