Question

我写了一个hql查询，我想更新数据库中的枚举值，但我不知道如何更新枚举值。这是我的模型

@Entity
public class ImageInfo implements Serializable{

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "ID")
private Long id;

@Column(name = "ACTIVE")
private Integer active;

@Column(name = "NOTIFICATION_NUM")
private Integer groupNum;

@Column(name = "PUBLISHED_TIME")
@Temporal(TemporalType.TIMESTAMP)
private Date publishedTime;

@Column(name = "POSTED_TIME")
private Timestamp postedTime;

@Enumerated(EnumType.STRING)
private PublishIndicator publishIndicator;

}

你可以看到有一个名为＆＃34;的发表名称＆＃34; 。我想在hql查询中更新此字段。这是我的查询

session.createQuery("update ImageInfo img set img.active = 1 
and img.publishIndicator = :publish where   img.active = 0  and  
img.publishedTime <:publishedTime ").setParameter("publishedTime", 
date).setParameter("publish", PublishIndicator.PUBLISH).executeUpdate();

但是我收到了错误

＆＃34; java.lang.IllegalArgumentException：要遍历的节点不能为空！＆＃34;

我知道我在更新enum valur时遇到了什么问题。我该如何解决？

Answer 1

使用您的（完全限定的）PublishIndicator枚举。而不是PublishIndicator.PUBLISH值，如下所示:(假设您的PublishIndicator枚举在com.image包中），请将其用作com.image.PublishIndicator.PUBLISH

更新休眠中的枚举值

1 个答案: