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我的实体中的集合不会被持久化,无论它是简单的集合还是关联。
我正在用mongodb使用OGM。在使用Hibernate OGM和mongodb的实体中缺少集合
为考虑问题的一个例子以下实体:
@Entity
class Document {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Type(type = "objectid")
String id;
String name;
@ElementCollection
Set<String> names;
Document() {
this.names = new HashSet<>();
}
Document(String name) {
this();
this.name = name;
}
}
@Entity
class ChildDocument {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Type(type = "objectid")
String id;
String name;
ChildDocument() {}
ChildDocument(String name) {
this.name = name;
}
}
class ParentDocument {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Type(type = "objectid")
String id;
int count;
@OneToMany(cascade = CascadeType.ALL)
@AssociationStorage(AssociationStorageType.IN_ENTITY)
List<ChildDocument> kids = new LinkedList<>();
}
以下设置:
final StandardServiceRegistryBuilder registryBuilder = new StandardServiceRegistryBuilder()
.applySetting(OgmProperties.ENABLED, true)
.applySetting(AvailableSettings.TRANSACTION_COORDINATOR_STRATEGY, "jta")
.applySetting(AvailableSettings.JTA_PLATFORM, "JBossTS")
.applySetting(OgmProperties.DATASTORE_PROVIDER, MongoDB.DATASTORE_PROVIDER_NAME)
.applySetting(OgmProperties.DATABASE, "testdb")
.applySetting(OgmProperties.CREATE_DATABASE, "true");
final StandardServiceRegistry registry = registryBuilder.build();
final MetadataSources sources = new MetadataSources(registry);
sources.addAnnotatedClass(Document.class);
sources.addAnnotatedClass(ChildDocument.class);
sources.addAnnotatedClass(ParentDocument.class);
final SessionFactory sessionFactory = sources.buildMetadata().getSessionFactoryBuilder()
.unwrap(OgmSessionFactoryBuilder.class)
.build();
而且这套短节目:
Document document1 = new Document("one");
Document document2 = new Document("two");
document2.names.add("one.one");
document2.names.add("one.two");
ParentDocument parent = new ParentDocument();
parent.count = 2;
parent.kids.add(new ChildDocument("one"));
parent.kids.add(new ChildDocument("two"));
final Session session = sessionFactory.openSession();
session.save(document1);
session.save(document2);
session.save(parent);
session.close();
sessionFactory.close();
的testdb
现在包含3收藏品:Document
,ChildDocument
和ParentDocument
。
- 的
ChildDocument
文件是正确的,因为他们只需要有_id
和name
- 的
Document
文件也只包含_id
和name
,该names
集合缺失 - 在
ParentDocument
只有_id
和count
持续存在,但即使创建了ChildDocuments
我在做什么错?
谢谢