问从包装类Jackson派生确切的类

EN

class BaseClass {
    ...
    String typeOfSomeClass;
    SomeClassBasedOnType someClassBasedOnType;
}

@JsonTypeInfo(use=JsonTypeInfo.Id.NAME, include=As.PROPERTY, property="BaseClass.typeOfSomeClass")
@JsonSubTypes({
    @Type(value = SomeClassBasedOnTypeImpl1.class, name="type1"),
    @Type(value = SomeClassBasedOnTypeImpl2.class, name="type2")
})
interface SomeClassBasedOnType {
}
@JsonTypeName("type1")
class SomeClassBasedOnTypeImpl1 implements SomeClassBasedOnType {
    String str1;
}
@JsonTypeName("type2")
class SomeClassBasedOnTypeImpl2 implements SomeClassBasedOnType {
    String str2;
}

{"typeOfSomeClass":"type1", "someClassBasedOnType": {"str1":"someValue"}}

{"typeOfSomeClass":"type2", "someClassBasedOnType": {"str2":"someValue"}}

BaseClass baseClass = new ObjectMapper().readValue(someJsonAsString, BaseClass.class);