Yes it is possible. Simply add a custom mapper after regular field mapping.
factory.classMap(ClazzA.class, ClazzB.class)
.field("name", "sname")
.byDefault()
.customize(new CustomMapper<ClazzA, ClazzB>() {
@Override
public void mapBtoA(ClazzB clazzB, ClazzA clazzA, MappingContext context) {
if ("stk".equals(clazzB.getType())) {
clazzA.setName(clazzB.getSName());
}
}
}
.register();