Mapping enum to string in hibernate

Question

I've got a Category Hibernate model:

@Entity @Table(name = "category") public class Category {      @Id     @GeneratedValue(strategy=GenerationType.AUTO)     @Column(name = "id")     private long id;      @Column(name = "type")     private String type; 

which have a type string field. Also I've got a Java enum which represent a type of a category:

public enum CategoryType {     INCOME, OUTCOME; } 

which I would like to use instead of the string type. The SQL accepts two distinct values in the varchar parameter: either CategoryIncome or CategoryOutcome. I would like the Category model class to accept an enum variable - and map it somehow to the string whenever hibernate asks for it.

Is it possible?

Answer 1

Yes, is possible. It should be:

@Enumerated(EnumType.STRING) @Column(name = "category_type") private CategoryType categoryType; 

Answer 2

The accepted answer is not sufficient for PostgreSQL. I attach the implementation that worked for me:

https://stackoverflow.com/a/64021041/5279996