How to supply Enum value to an annotation from a Constant in Java

by

“All problems in computer science can be solved by another level of indirection” — David Wheeler

Here it is:

Enum class:

public enum Gender {
    MALE(Constants.MALE_VALUE), FEMALE(Constants.FEMALE_VALUE);

    Gender(String genderString) {
    }

    public static class Constants {
        public static final String MALE_VALUE = "MALE";
        public static final String FEMALE_VALUE = "FEMALE";
    }
}

Person class:

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import static com.fasterxml.jackson.annotation.JsonTypeInfo.As;
import static com.fasterxml.jackson.annotation.JsonTypeInfo.Id;

@JsonTypeInfo(use = Id.NAME, include = As.PROPERTY, property = Person.GENDER)
@JsonSubTypes({
    @JsonSubTypes.Type(value = Woman.class, name = Gender.Constants.FEMALE_VALUE),
    @JsonSubTypes.Type(value = Man.class, name = Gender.Constants.MALE_VALUE)
})
public abstract class Person {
...
}

More Related Contents:

  1. Use Enum type as a value parameter for @RolesAllowed-Annotation
  2. Java String validation using enum values and annotation
  3. Hibernate mapping between PostgreSQL enum and Java enum
  4. What are enums and why are they useful?
  5. Only using @JsonIgnore during serialization, but not deserialization
  6. Can I add and remove elements of enumeration at runtime in Java
  7. What is the use of marker interfaces in Java?
  8. Should we @Override an interface’s method implementation?
  9. Which types can be used for Java annotation members?
  10. Why can’t enum’s constructor access static fields?
  11. Where is the documentation for the values() method of Enum?
  12. Why doesn’t a missing annotation cause a ClassNotFoundException at runtime?
  13. Best way to create enum of strings?
  14. Can I get an enum based on the value of its field?
  15. Understanding Enums in Java
  16. Is it good practice to use ordinal of enum?
  17. Why can a enum have a package-private constructor?
  18. How to scan multiple paths using the @ComponentScan annotation?
  19. @OneToMany and composite primary keys?
  20. Why is default required for a switch on an enum?
  21. Annotating the functional interface of a Lambda Expression
  22. Spring @ContextConfiguration how to put the right location for the xml
  23. Getting all names in an enum as a String[]
  24. How can I reference my Java Enum without specifying its type
  25. How to get the enum type by its attribute?
  26. BeanNotOfRequiredTypeException due to autowired fields
  27. enable Annotation Processors option in Android Studio 2.2
  28. Can not compile enums in Eclipse
  29. Can the annotation variables be determined at runtime?
  30. How to enable enum inheritance

Leave a Comment