Reflection Based Mapping
Reflection based mapping is a programming technique that uses runtime reflection to automatically map data between objects, such as converting database records to domain objects or JSON data to class instances. It dynamically inspects and manipulates class structures at runtime to handle mapping without requiring explicit code for each property. This approach is commonly used in object-relational mapping (ORM) tools, serialization frameworks, and data transformation libraries to reduce boilerplate and improve flexibility.
Developers should learn reflection based mapping when building applications that involve frequent data transformations, such as web APIs handling JSON payloads, database interactions in ORMs, or configuration parsing. It's particularly useful in scenarios where object structures are complex, dynamic, or subject to change, as it automates mapping and reduces manual coding errors. For example, in a RESTful service, it can map incoming JSON to Java objects without writing custom setters for each field.