java HibernateException：拥有级联的实体实例不再引用带有级联 =“all-delete-orphan”的集合
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HibernateException: A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance
提问by Nalini Wanjale
I have PolicyDO and PolicyDocumentDO.relation between them is as follows
我有PolicyDO和PolicyDocumentDO.relation它们之间如下
PolicyDO.hbm.xml
<bag name="listPolicyDocumentDOList" cascade="all-delete-orphan" lazy="false" inverse="true">
<key column="POLICYSEQ" />
<one-to-many class="dataobjects.policy.PolicyDocumentDO" />
PolicyDO.java
protected List<PolicyDocumentDO> policyDocumentDOList = new ArrayList<PolicyDocumentDO>();
public java.util.List<PolicyDocumentDO> getListPolicyDocumentDOList() {
return this.policyDocumentDOList;
}
public void setListPolicyDocumentDOList(java.util.List<PolicyDocumentDO> list) {
policyDocumentDOList.clear();
policyDocumentDOList = list;
}
PolicyDocumentDO.hbm.xml
<many-to-one name="parentGuidObj" class="dataobjects.policy.PolicyDO" not-null="true" >
<column name="POLICYSEQ" />
</many-to-one>
When ever I tried to query something from database like below
当我尝试从数据库中查询如下内容时
session = sessionFactory.openSession();
Query query = session.createQuery(strBuff.toString());
List listQuery = query.list();
I get following error
我收到以下错误
org.hibernate.HibernateException: A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance:
dataobjects.policy.PolicyDO.listPolicyDocumentDOList
dataobjects.policy.PolicyDO.listPolicyDocumentDOList
So after googling I did following changes while setting listPolicyDocumentDOList in PolicyDO
因此，在谷歌搜索之后，我在 PolicyDO 中设置 listPolicyDocumentDOList 时做了以下更改
public void setListPolicyDocumentDOList(java.util.List<PolicyDocumentDO> list) {
policyDocumentDOList.clear();
policyDocumentDOList = list;
}
Then also I am getting above error. What else I can do to solve this error. Thanks
然后我也遇到了上述错误。我还能做些什么来解决这个错误。谢谢
回答by Tomasz Fija?kowski
change
改变
public void setListPolicyDocumentDOList(java.util.List<PolicyDocumentDO> list) {
policyDocumentDOList.clear();
policyDocumentDOList = list;
}
to
到
public void setListPolicyDocumentDOList(java.util.List<PolicyDocumentDO> list) {
policyDocumentDOList.clear();
policyDocumentDOList.addAll(list);
}
