Question

在实体中有两对协议：

import org.hibernate.annotations.ForeignKey;
...
@OneToOne(fetch = FetchType.LAZY, optional = false, targetEntity = UserSettingsEntityBean.class)
@JoinColumn(name = INTEGER_USER_ID)
@ForeignKey(name = "FK_USER_TO_SETTINGS")
private UserSettingsEntity userSettings;

@ManyToOne(targetEntity = DivisionEntityBean.class, optional = true)
@JoinColumn(name = "DIVISION_ID", nullable = true, columnDefinition = "integer")
@ForeignKey(name = "FK_USER_TO_DIVISIOG")
private DivisionEntity division;

Hibernate为这些ForeignKey注释生成以下更新：正确的更新，如预期的那样：

alter table users add constraint FK_USER_TO_DIVISIOG foreign key (DIVISION_ID) references division

错误的数据库更新，注释被忽略（生成约束名称）：

alter table users add constraint FK_olm1qeb13uc1worutbx1sc22k foreign key (USER_ID) references user_settings

你可以解释一下吗？有没有办法在第二种情况下设置约束名称？

UPDATED1：

以下解决方案也不起作用：

@JoinColumn(name = INTEGER_USER_ID, foreignKey = @javax.persistence.ForeignKey(name = "FK_USER_TO_PERS_DATA"))

此解决方案适用于ManyToOne，这是OneToOne的问题

UPDATED2： unit test to reproduce this issue

Answer 1

import javax.persistence.ForeignKey;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne; 

@JoinColumn(updatable = false, nullable = false, foreignKey = @ForeignKey(name = "FK_customerUser_customer" ))
@ManyToOne(optional = false, cascade = CascadeType.DETACH, fetch = FetchType.LAZY)
private Customer customer;

外键jpa / hibernate注释不能按预期工作

1 个答案: