MapStruct
A Java annotation processor for generating type-safe, high-performance bean mappers at compile time.
What is MapStruct?
MapStruct is a Java annotation processor that generates type-safe and high-performance mappers for Java bean classes, including support for Java 16+ records. It automates the tedious process of writing mapping code between objects, reducing errors and improving maintainability. By operating at compile time, it ensures that mappings are correct and efficient, integrating seamlessly into modern Java projects.
Java developers working on applications that require frequent mapping between different object models, such as converting entities to DTOs, handling API payloads, or managing data transformations in layered architectures.
Developers choose MapStruct for its compile-time type safety, which catches mapping errors early, and its high performance due to the use of plain method invocations instead of reflection. It eliminates runtime dependencies and generates debuggable code, offering a robust alternative to manual mapping or runtime-based frameworks.
Overview
An annotation processor for generating type-safe bean mappers
Use Cases
Best For
- Converting JPA entities to data transfer objects (DTOs) in Spring Boot applications
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