保存具有OneToMany关系的模型
|
你好
我有这样的模型：
public class Person extends Model {
...
@OneToMany(orphanRemoval = true, mappedBy = \"person\")
@Cascade({ CascadeType.ALL })
public List<Contact> infos = new ArrayList<Contact>();
}
public class Contact extends Model {
...
@ManyToOne(optional = false)
public Person person;
}
public static void savePerson(Person person) {
person.save();
renderJSON(person);
}
PersistenceException occured : org.hibernate.HibernateException: A collection with cascade=\"all-delete-orphan\" was no longer referenced by the owning entity instance: models.Person.infos
没有找到相关结果
已邀请:
1 个回复
倪蕊悲潍
public class Person extends Model { // ... public List<Contact> getInfos() { if (infos == null) infos = new ArrayList<Contact>(); return infos; } public void setInfos(List<Contact> newInfos) { // Set new List while keeping the same reference getInfos().clear(); if (newInfos != null) { this.infos.addAll(newInfos); } } // ... }public static void savePerson(Person person) { person.merge(); person.save(); renderJSON(person); }