mapstruct-patterns

SKILL.md

Best practices for using MapStruct with constructor-based mapping to achieve compile-time safety. When constructors change, mappings fail to compile — no runtime surprises.

Use constructors, not setters. This gives you compile-time errors when fields change.

Records naturally enforce this. For mutable entities, use the @Default annotation.

基于构造函数的 MapStruct 映射可确保 Jakarta EE 中的编译时安全。在实现 DTO 映射或使用 @Default 注释时使用。 来源：emvnuel/skill.md。

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