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Java / MapStruct Java Interview questions part 2

What are the types of mapping methods MapStruct can generate?

MapStruct can generate several kinds of mapping methods depending on the method signature you declare in the mapper interface.

Method styleWhat it does
Bean-to-bean mappingMaps one object type to another, e.g. CarDto toDto(Car car).
Update mappingCopies values into an existing target passed as @MappingTarget.
Iterable/collection mappingMaps List, Set, or arrays element by element.
Map mappingMaps Map<K,V> to another map type, converting keys/values.
Enum mappingMaps one enum type's constants to another's.

MapStruct infers which style to generate from the parameter and return types of the abstract method you declare.

Which method signature style triggers update-in-place mapping?
MapStruct decides the mapping style based on:

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