package com.ankurm.hibernatedemo.naturalid;

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

/**
 * A COMPOSITE natural id: (company, deptCode) together must be unique, not either field alone.
 * Matches the article's example -- verified to actually load via
 * {@code session.byNaturalId(Department.class).using(...).using(...).load()}.
 *
 * <p>Docs: docs/06-natural-ids.md, Topic 3.
 */
@Entity
public class Department {

    @Id
    @GeneratedValue
    private Long id;

    @NaturalId
    @ManyToOne
    @JoinColumn(name = "company_id")
    private Company company;

    @NaturalId
    private String deptCode;

    private String name;

    public Department() {
    }

    public Department(Company company, String deptCode, String name) {
        this.company = company;
        this.deptCode = deptCode;
        this.name = name;
    }

    public Long getId() {
        return id;
    }

    public Company getCompany() {
        return company;
    }

    public String getDeptCode() {
        return deptCode;
    }

    public String getName() {
        return name;
    }
}