<ul><li>The @Context annotation from MapStruct allows injecting context objects into mapping methods for complex source mappings.</li><li>Examples include using @AfterMapping, @BeforeMapping, @ObjectFactory, Expression, and QualifiedByName to handle complex mappings.</li><li>Mapper interfaces and abstract classes are created to demonstrate the usage of @Context annotation for mapping logic.</li><li>Different methods like map, setLookupValue, and splitFullName are used with @Context for mapping operations.</li><li>Interface and abstract class differentiation is based on complexity of mapping logic and dependency injection needs.</li><li>Generated implementation classes like MapperWithExpressionImpl are created to handle the actual mapping operations.</li><li>Tests like MapperWithExpressionTest are written to verify the functionality of the mapping implementations.</li><li>The use of @AfterMapping, @BeforeMapping, @ObjectFactory, Expression, and QualifiedByName methods are compared.</li><li>Overall, the example showcases how context annotation can be leveraged for complex source mappings in MapStruct.</li></ul>

@Context Complex Source Mappings Example

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