休眠选择数据:批量更新从更新[0]返回意外行数;实际行数:0;预期:1

时间:2018-02-16 12:16:12

标签: java hibernate jpa

当我尝试为@OneToMany关系选择数据时,我收到此错误, 这是我的实体:

@Entity
@Table(name = "PERSON")
@DynamicInsert

public class Person
    implements java.io.Serializable
{

//properties ....

private Set<Adress> adresses = new HashSet<Adress>( 0 );

    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "person")
    public Set<Adress> getAdresses()
    {
        return this.adresses;
    }

    public void setAdresses( Set<Adress> adresses )
    {
        this.adresses = adresses;
    }

}

//Adress class

@Entity
@Table(name = "ADRESS")
public class Adress
    implements java.io.Serializable
{

//properties ....

private Person person;

   @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "NO_PERSON")
    public Constat getPerson()
    {
        return this.person;
    }

    public void setPerson( Person person )
    {
        this.person = person;
    }
}

当我尝试获取一个Adress对象时,我收到错误,这是我的服务:

  public Adress findLastAdressByType( String noPerson, String type )
    {
        List<Adress> result = getHibernateTemplate().find( "from Adress as Adress where Adress.person.noPerson = ? and Adress.type = ? order by dateCreation desc ", noPerson, type );
        if ( !result.isEmpty() )
        {
            return result.get( 0 );
        }
        else
        {
            return null;
        }
    }

这是我的getHibernateTemplate()。find()服务:

  @SuppressWarnings("unchecked")
    public <T> List<T> find( String queryString, Object... values )
        throws DataAccessException
    {
        Query query = getSessionFactory().getCurrentSession().createQuery( queryString );
        for ( int i = 0; i < values.length; i++ )
        {
            query.setParameter( i, values[i] );
        }
        return query.list();
    }

我收到错误&#34;批量更新从update [0]返回意外的行数;实际行数:0;预期:1&#34;在ligne:

 return query.list();

List<Adress> result = getHibernateTemplate().find( "from Adress as Adress where Adress.person.noPerson = ? and Adress.type = ? order by dateCreation desc ", noPerson, type );

任何人都可以帮我知道究竟是什么问题,这是hibernate的一个问题,还是我的关系注释有问题。

问候!

0 个答案:

没有答案