Persisting UUID in PostgreSQL using JPA

Question

I\'m trying to persist an entity in PostgreSQL that uses UUID as primary key. I\'ve tried persisting it as a plain UUID:

@Id
@Column(name = \"customer_id\")
         


        

Answer 1

JPA 2.1 provides a very easy way to use the PostgreSQL uuid column type and java.util.UUID as the type of the corresponding entity field:

@javax.persistence.Converter(autoApply = true)
public class PostgresUuidConverter implements AttributeConverter {

    @Override
    public UUID convertToDatabaseColumn(UUID attribute) {
        return attribute;
    }

    @Override
    public UUID convertToEntityAttribute(UUID dbData) {
        return dbData;
    }

}

Just add this class to your persistence configuration and annotate UUID fields with @Column(columnDefinition="uuid").