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嗨JPA inharit领域所有没有继承id字段
我们一般放4场在每一个命名为CREATED_BY,LAST_UPDATED_BY,CREATION_DATE,时间:LAST_UPDATED_DATELAST_UPDATED_TIME表,所以我想,为什么不把这个编在一个班里BaseDo和比继承这样的类如EmployeeDo。问题是如果我用@Entity注释这个BaseDo,我必须放一个@Id字段,我不想要。有没有办法做到这一点?
@Entity
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
public class BaseDo implements Serializable {
private static final long serialVersionUID = 6685603264139140757L;
@Column(name="CREATED_BY" , nullable =false)
private String createdBy;
@Column(name="LAST_UPDATED_BY", nullable =false)
private String lastUpdatedBy;
@Column(name="CREATION_DATE", nullable =false)
private Date creationDate;
@Column(name="LAST_UPDATED_DATE", nullable =false)
private Date lastUpdationDate;
}
@Entity
@Table(name="EMPLOYEE")
public class EmployeeDo extends BaseDo implements Serializable {
private static final long serialVersionUID = 4465521188079217243L;
@Id
@Column(name="EMPLOYEE_ID")
private String employeeId ;
}
非常感谢