java 龙目岛与休眠
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Lombok with hibernate
提问by javaguy
Is this possible? Haven't seen much discussion on it.
这可能吗？没有看到太多关于它的讨论。
采纳答案by Luciano Fiandesio
I have never tried Lombok with Hibernate but I don't see why it shouldn't work. Also, take a look here: http://groups.google.com/group/project-lombok/browse_thread/thread/294bd52d9d8695df/7bc6b0f343831af1?lnk=gst&q=hibernate#7bc6b0f343831af1
我从来没有用 Hibernate 尝试过 Lombok，但我不明白为什么它不应该工作。另外，看看这里：http: //groups.google.com/group/project-lombok/browse_thread/thread/294bd52d9d8695df/7bc6b0f343831af1?lnk=gst&q=hibernate#7bc6b0f343831af1
Also, Lombok project release notesmention Hibernate explicitely.
此外，Lombok 项目发行说明明确提到了 Hibernate。
回答by wmacura
Sure! It works great from my experience. Here's an example entity:
当然！根据我的经验，它效果很好。这是一个示例实体：
@Entity
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class PingerEntity {
// ID
@Id
@Getter
@Setter
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
// USER
@Getter
@Setter
@ManyToOne(fetch = FetchType.LAZY, optional = false)
private UserEntity user;
// URL
@Getter
@Setter
@Basic(optional = false)
private String url;
/**
* The number of seconds between checks
*/
@Getter
@Setter
@Basic(optional = false)
private int frequency;
@Getter
@Setter
@Basic(optional = false)
@Enumerated(EnumType.STRING)
public MonitorType monitorType;
}
回答by Marcin Szymczak
You can use it also with @Data (and it works !)
您也可以将它与@Data 一起使用（它可以工作！）
@Entity
@Data
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long id;
private String firstName;
private String lastName;
}
回答by vault
A simple example; Library.java:
一个简单的例子；Library.java：
@Data
@NoArgsConstructor // JPA
@Entity
@Table(name = "libraries")
public class Library {
@Id
@GeneratedValue
private Long id;
@OneToMany(cascade = CascadeType.ALL)
@EqualsAndHashCode.Exclude
// This will be included in the json
private List<Book> books = new ArrayList<>();
@JsonIgnore
public void addBook(Book book) {
books.add(book);
book.setLibrary(this);
}
}
And Book.java:
并且Book.java：
@Data
@NoArgsConstructor // JPA
@Entity
@Table(name = "books")
public class Book {
@Id
@GeneratedValue
private Long id;
@NotBlank
private String title;
@ManyToOne
@JoinColumn(name = "library_id") // Owning side of the relationship
@EqualsAndHashCode.Exclude
@JsonIgnore // Avoid infinite loops
private Library library;
}
