Package org.mapstruct

MapStruct is a code generator which simplifies the implementation of mappings between Java bean types by generating mapping code at compile time, following a convention-over-configuration approach. The generated code uses plain method invocations and thus is fast and type-safe.

This package contains several annotations which allow to configure how mapper interfaces are generated.

See Also:

MapStruct reference documentation

Class Summary

Class	Description
MappingConstants	Contains all constants defined in the mapping process.
MappingConstants.ComponentModel	Specifies the component model constants to which the generated mapper should adhere.

Enum Summary

Enum	Description
CollectionMappingStrategy	Strategy for propagating the value of collection-typed properties from source to target.
InjectionStrategy	Strategy for handling injection.
MappingInheritanceStrategy	Strategy for inheriting configurations given for methods of prototype mapping methods (declared on mapper config classes) to actual mapping methods declared on mappers referring to such config class via Mapper.config().
NullValueCheckStrategy	Strategy for dealing with null source values.
NullValueMappingStrategy	Strategy for dealing with null values passed to mapping methods.
NullValuePropertyMappingStrategy	Strategy for dealing with null or not present properties in the source bean.
ReportingPolicy	Policy for reporting issues occurring during the generation of a mapper implementation.
SubclassExhaustiveStrategy	Strategy for dealing with subclassMapping annotated methods.

Annotation Types Summary

Annotation Type	Description
AfterMapping	Marks a method to be invoked at the end of a generated mapping method, right before the last return statement of the mapping method.
BeanMapping	Configures the mapping between two bean types.
BeforeMapping	Marks a method to be invoked at the beginning of a generated mapping method.
Builder	Configuration of builders, e.g. the name of the final build method.
Condition	This annotation marks a method as a presence check method to check check for presence in beans.
Context	Marks a parameter of a method to be treated as mapping context.
DecoratedWith	Specifies a decorator to be applied to a generated mapper, which e.g. can be used to amend mappings performed by generated mapping methods.
EnumMapping	Configured the mapping between two value types.
InheritConfiguration	Advises the code generator to apply the configuration (as given via Mapping, IterableMapping etc.)
InheritInverseConfiguration	Advises the code generator to apply all the Mappings from an inverse mapping method to the annotated method as well.
IterableMapping	Configures the mapping between two iterable like types, e.g.
MapMapping	Configures the mapping between two map types, e.g.
Mapper	Marks an interface or abstract class as a mapper and activates the generation of a implementation of that type via MapStruct.
MapperConfig	Marks a class or interface as configuration source for generated mappers.
Mapping	Configures the mapping of one bean attribute or enum constant.
Mappings	Configures the mappings of several bean attributes.
MappingTarget	Declares a parameter of a mapping method to be the target of the mapping.
Named	Marks mapping methods with the given qualifier name.
ObjectFactory	This annotation marks a method as a factory method to create beans.
Qualifier	Declares an annotation type to be a qualifier.
SubclassMapping	Configures the mapping to handle hierarchy of the source type.
SubclassMappings	Configures the SubclassMappings of several subclasses.
TargetType	Declares a parameter of a custom mapping method to be populated with the target type of the mapping.
ValueMapping	Configures the mapping of source constant value to target constant value.
ValueMappings	Constructs a set of value (constant) mappings.