Практикум Spring Boot — Simple CRM — Этап 4 — сущность `Customer`

package com.example.crm.model;

import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.PrePersist;
import jakarta.persistence.PreUpdate;
import jakarta.persistence.Table;
import jakarta.validation.constraints.Email;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.Size;

import java.time.LocalDateTime;

@Entity
@Table(name = "customers")
public class Customer {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @NotBlank
    @Size(max = 100)
    @Column(nullable = false, length = 100)
    private String name;

    @Email
    @Size(max = 150)
    @Column(length = 150)
    private String email;

    @Size(max = 30)
    @Column(length = 30)
    private String phone;

    @Size(max = 100)
    @Column(length = 100)
    private String company;

    @Size(max = 500)
    @Column(length = 500)
    private String notes;

    @Column(nullable = false)
    private LocalDateTime createdAt;

    @Column(nullable = false)
    private LocalDateTime updatedAt;

    @PrePersist
    void onCreate() {
        LocalDateTime now = LocalDateTime.now();
        createdAt = now;
        updatedAt = now;
    }

    @PreUpdate
    void onUpdate() {
        updatedAt = LocalDateTime.now();
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public String getNotes() {
        return notes;
    }

    public void setNotes(String notes) {
        this.notes = notes;
    }

    public LocalDateTime getCreatedAt() {
        return createdAt;
    }

    public LocalDateTime getUpdatedAt() {
        return updatedAt;
    }
}