package com.ankurm.hibernatedemo.naturalid;

import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.Id;
import org.hibernate.annotations.NaturalId;

/**
 * {@code @NaturalId} with NO {@code mutable} attribute -- defaults to {@code mutable = false}
 * (immutable). Deliberately does NOT add {@code @Column(updatable = false)}, so if Hibernate
 * lets an UPDATE through at the SQL level, that is Hibernate's own natural-id immutability
 * enforcement failing to stop it, not a JPA column-level guard doing the stopping.
 *
 * <p>Docs: docs/06-natural-ids.md, Topic 3.
 */
@Entity
public class ImmutableNaturalIdEntity {

    @Id
    @GeneratedValue
    private Long id;

    @NaturalId // mutable defaults to false
    private String code;

    public ImmutableNaturalIdEntity() {
    }

    public ImmutableNaturalIdEntity(String code) {
        this.code = code;
    }

    public Long getId() {
        return id;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }
}