A naukri.com initiative
Javacodegeeks
7d
78
Image Credit: Javacodegeeks
How to Map Nested Properties Using MapStruct
- This article discusses how to perform nested mapping using the MapStruct library, commonly required in enterprise applications with complex data structures.
- MapStruct generates efficient mapping code at compile-time, reducing boilerplate code for object mapping tasks like converting domain models to DTOs.
- The example involves mapping a music library model structure with nested objects like Song and Track to a flattened DTO structure for better data representation.
- Maven configuration includes the MapStruct dependency and annotation processor plugin for compilation to handle nested mappings effectively.
- Source entity classes (Library, Song, Track) and target DTO classes (TrackDTO, SongDTO, LibraryDTO) are defined for mapping purposes.
- The mapper interface (LibraryMapper) is used to define field mappings, including handling nested properties using @Mapping annotations.
- MapStruct automatically generates implementation classes like LibraryMapperImpl during compilation to execute the defined mappings.
- An example Main class demonstrates how to map entity objects to DTOs and back, showcasing the effectiveness of MapStruct in nested mapping scenarios.
- The article concludes by emphasizing how MapStruct simplifies nested mappings with explicit field mappings and efficient code generation.
- This article would be eligible for web story generation due to its clear explanation of nested mapping concepts using MapStruct with practical examples.
Read Full Article
4 Likes
For uninterrupted reading, download the app