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Tag: mapstruct

Unable to map target properties using constructors with mapstruct

I am using MapStruct 1.5.2.Final Map struct is unable to map the target values using the parameterised constructor. Following is the parameterised constructor for the class. I know that if I would have exposed the setters, this would have worked. I don’t want to expose the setters for my class as I want my class to be immutable. I am

mapper does not convert between dto to entity

I am new to mapsturct I just want to map between dto to entity those two; my bank class; my bank dto class; my mapper below; Answer Target and source properties don’t work well with collections mapping. You need additional mapping for single element. Update your mapper as below, so Mapstruct can use element mapper when mapping the collection: If

MapStruct ignore all unmapped properties for specific method

There are several ways to ignore unmapped target properties in mapstruct. We could list all properties to ignore for specific method: Or specify to ignore all properties on mapper level : Is there a way to mix these approaches and ignore all properties at the method level without explisently list all of them? Answer Using the BeanMapping annotation you can

Map several fields to List with a mapstruct

for example, I have following entity: And a Dto object: Is there a proper way how to map Bank to BankDto, so employee1 and employee2 fields will be added to employeeList collection? Answer You can resolve your issue by adding an after mapping method to your mapping interface:

Mapstruct how to initialize fields

I have a DTO like this and an entity I want to create a mapper to map DTO to entity. How can I make the field private Instant timestamp; has value like Instant.now()? My mapper so far It got compile error Answer The issue is due to the source being empty. Remove the source and use expression instead of defaultExpression.

@SubclassMapping order

First time using MapStruct (1.5.0.Beta2) Say I have the following class hierarchy: C extends B extends A and Cdto extends Bdto extends Adto. And the following mapper: When I map a list of C objects I actually get a list of Bdtos. If however I change the ordering to: I get a list of Cdtos as expected. Is this by

MapStruct. Mapping fields of list element by expression

Good afternoon! There is an object that contains field as type List, is it possible to set each (some) field of type T, by values generated in the annotation by the expression parameter? For example: Target object: Mapper interface: How can such an idea be implemented? In the documentation, I found only examples with 1:1 mapping. Edited: Also, i try

MapStruct dependency scope in a Maven project

MapStruct generates code at compile-time and it should not require any runtime dependencies: How is MapStruct different from other bean mapping tools? Unlike most other bean mapping tools, MapStruct doesn’t work at runtime but is a compile-time code generator. Generating mapping code at build time has many advantages: Excellent performance, as no reflection or byte code generation at runtime is

Use another MapStruct mapper only inside an expression clause

I have a mapper that, for a particular attribute of the target class, needs to choose one from a list of objects inside the source object, and map it using a differente mapper class. Simplifying it a lot, the Game class contains a list of Transaction objects, and my GameMapper class looks like this: The thing is, EventMapper gets generated

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