Java 休眠按条件删除错误
我有一个名为SourceCondition的实体(在mongodb上持久化),其属性为workflowID,我想删除具有特定workflowID的所有SourceCondition对象 该实体为:Java 休眠按条件删除错误,java,hibernate,hql,hibernate-ogm,Java,Hibernate,Hql,Hibernate Ogm,我有一个名为SourceCondition的实体(在mongodb上持久化),其属性为workflowID,我想删除具有特定workflowID的所有SourceCondition对象 该实体为: @Entity @Table(name="source_conditions") public class SourceCondition { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @TableGene
@Entity
@Table(name="source_conditions")
public class SourceCondition {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@TableGenerator(
name = "source_conditions"
)
private ObjectId id;
public String getId() { return id.toString(); }
public void setId(ObjectId id) { this.id = id; }
@Column(name="workflowID")
private String workflowID;
public SourceCondition() {}
public String getWorkflowID() {
return workflowID;
}
public void setWorkflowID(String workflowID) {
this.workflowID = workflowID;
}
}
我执行的查询是:
Session s = HibernateUtil.getSessionFactory().openSession();
Query query = s.createQuery("delete from SourceCondition where workflowID = :wid");
query.setParameter("wid", "sampleID");
int result = query.executeUpdate();
我收到以下错误:
查询中出现语法错误:[从com.backend.Models.Source.SourceCondition中删除,其中workflowID=:wid]
我还尝试了:
Query query = s.createQuery("delete SourceCondition where workflowID = :wid");
query.setParameter("wid", "sampleID");
int result = query.executeUpdate();
但我收到了同样的错误
=====================
编辑
我用以下方法绕过这个问题:
Query query1 = s.createQuery("from SourceCondition sc where sc.workflowID = :wid");
query1.setParameter("wid", "sampleID");
List l1 = query1.list();
Iterator<?> it1 = l1.iterator();
while (it1.hasNext())
{
SourceCondition sc = (SourceCondition) it1.next();
s.delete(sc);
s.flush();
}
queryquery1=s.createQuery(“来自SourceCondition sc,其中sc.workflowID=:wid”);
query1.setParameter(“wid”、“sampleID”);
List l1=query1.List();
迭代器it1=l1.Iterator();
while(it1.hasNext())
{
SourceCondition sc=(SourceCondition)it1.next();
s、 删除(sc);
s、 冲洗();
}
这不是实现删除的最佳方法,但目前它仍能正常工作。您需要为
SourceCondition
提供一个变量名:
delete from SourceCondition sc where sc.workflowID = :wid
我总是在查询中收到语法错误:[从com.backend.Models.Source.SourceCondition sc删除,其中sc.workflowID=:wid]:(