已删除的实体传递给持久异常 [英] Deleted entity passed to persist exception

问题描述

我有这样的实体：

Document
| n ..
到
..1 |
DocumentType
| 1 ..
到
.. n |
PropertyType
| 1 ..
到
.. n |
DocumentProperty

我只是尝试删除一个文件，例如：
entityManager.remove（document）; p>

但错误正在解雇：

16：45：51,499错误[[Seam资源Servlet]] Servlet.service（）用于servlet Seam Resource Servlet抛出异常
javax.persistence.EntityNotFoundException：已删除的实体传递给persist：[up.docstore.PropertyType＃]

< blockquote>

问题似乎来自这里：

  @OneToMany（mappedBy = documentType，cascade = {CascadeType.ALL}，fetch = FetchType.EAGER）
 @ForeignKey（name =FK_DOCUMENT_TYPE__PROPERTY_TYPE）
 @Sort（type = SortType.NATURAL）
 private SortedSet< ;属性类型> propertyTypes = new TreeSet< PropertyType>（）; 
  

如果我删除了CascadeType.PERSIST，它就可以工作了。
但是我需要它，也需要它EAGERLY。

有人知道其他解决方案吗？

编辑：删除了DELETE_ORPHAN cascade，但仍然存在相同的问题。 解决方案

： b
$ b

• @ManyToOne关系中有一个CascadeType.REMOVE！删除它。

为什么选择此解决方案？

• 如果您想要删除您不想删除其父母的孩子，因为可能有其他孩子与其父母相关。

I have this kind of entities:

Document | n .. to ..1 | DocumentType | 1 .. to .. n | PropertyType | 1 .. to .. n | DocumentProperty

I simply try to remove a document like: entityManager.remove(document);

but an error is firing:

16:45:51,499 ERROR [[Seam Resource Servlet]] Servlet.service() for servlet Seam Resource Servlet threw exception javax.persistence.EntityNotFoundException: deleted entity passed to persist: [up.docstore.PropertyType#]

The problem seems to come from here:

@OneToMany(mappedBy = "documentType", cascade = {CascadeType.ALL}, fetch = FetchType.EAGER)
@ForeignKey(name = "FK_DOCUMENT_TYPE__PROPERTY_TYPE")
@Sort(type = SortType.NATURAL)
private SortedSet<PropertyType> propertyTypes = new TreeSet<PropertyType>();

If i remove CascadeType.PERSIST all it's working. But i need it there and also i need it EAGERLY.

Does anyone know other solution?

Edit: removed DELETE_ORPHAN cascade, but still the same problem.

解决方案

Solution:

• There was a CascadeType.REMOVE in a @ManyToOne relationship ! Removed it.

Why this solution?

• if you want to delete a child you SURELY do not want to delete its parent because there can be other children related to that parent.

这篇关于已删除的实体传递给持久异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！