java - 如果我为 transient 变量提供列标记，在 hibernate 中会发生什么？

Question

如果我为 transient 变量提供列标记，在 hibernate 中会发生什么？

@Table(name="team")
public class Team extends BaseObject implements Serializable {

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

@Column(length=50)
private String name;

@Column(length=10)
private String code;

@Column(name = "agency_id")
private Long agencyId;

@Column(name = "agency_name")
private transient String agencyName; 



}

Answer 1

字段不是持久的。您不会从数据库获取字段值，更改也不会被提交。

JSR 220 Specification

If the entity has field-based access, the persistence provider runtime accesses instance variables directly. All non-transient instance variables that are not annotated with the Transient annotation are persistent.