I have been going through the documentation of MapStruct and can't seem to figure out when the annotation @BeanMapping should be used. The documentation seems to extensively use just @Mapping for most cases as well. Could someone explain the use of @BeanMapping annotation? Perhaps with an example?
The @Mapping annotation is one of the core annotation of MapStruct. It allows you to define mappings between properties that are not named the same. From the JavaDoc:
Configures the mapping of one bean attribute.
The @BeanMapping annotation is there to control the behaviour of the entire mapping method. You can use @BeanMapping to set the NullValueCheckStrategy for the entire mapping method. From the JavaDoc:
Configures the mapping between two bean types
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