Package org.mapstruct
Annotation Type InheritInverseConfiguration
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@Target(METHOD) @Retention(CLASS) public @interface InheritInverseConfiguration
Advises the code generator to apply all theMapping
s from an inverse mapping method to the annotated method as well. An inverse mapping method is a method which has the annotated method's source type as target type (return type or indicated through a parameter annotated withMappingTarget
) and the annotated method's target type as source type.Any mappings given on the annotated method itself are added to those mappings inherited from the inverse method. In case of a conflict local mappings take precedence over inherited mappings.
If more than one matching inverse method exists, the name of the method to inherit the configuration from must be specified via
name()
Mapping.expression()
,Mapping.constant()
,Mapping.defaultExpression()
andMapping.defaultValue()
are not inverse inheritedExamples
@Mapper public interface HumanMapper { Human toHuman(HumanDto humanDto); @InheritInverseConfiguration HumanDto toHumanDto(Human human); }
// generates public class HumanMapperImpl implements HumanMapper { @Override public Human toHuman(HumanDto humanDto) { if ( humanDto == null ) { return null; } Human human = new Human(); human.setName( humanDto.getName() ); return human; } @Override public HumanDto toHumanDto(Human human) { if ( human == null ) { return null; } HumanDto humanDto = new HumanDto(); humanDto.setName( human.getName() ); return humanDto; } }
@Mapper public interface CarMapper { @Mapping( target = "seatCount", source = "numberOfSeats") @Mapping( target = "enginePower", source = "engineClass", ignore=true) // NOTE: source specified as well CarDto carToDto(Car car); @InheritInverseConfiguration @Mapping(target = "numberOfSeats", ignore = true) // no need to specify a mapping with ignore for "engineClass": specifying source above will assume Car carDtoToCar(CarDto carDto); }
- Author:
- Sjaak Derksen
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Element Detail
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name
String name
The name of the inverse mapping method to inherit the mappings from. Needs to be specified only in case more than one inverse method exists with a matching source and target type exists.- Returns:
- The name of the inverse mapping method to inherit the mappings from.
- Default:
- ""
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