我有2个实体
PayoutHeader.java
@Entity
public class PayoutHeader extends GenericDomain implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@Column
private Integer month;
@Column
private Integer year;
@OneToOne
private Bank bank;
@Column
private Double tdsPercentage;
@Temporal(javax.persistence.TemporalType.DATE)
private Date **chequeIssuedDate**;
@Temporal(javax.persistence.TemporalType.DATE)
private Date entryDate;
}
PayoutDetails .java
@Entity
public class PayoutDetails {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@ManyToOne
private PayoutHeader payoutHeader;
@Column
private Double amount;
@Column
private String bankName;
@Temporal(javax.persistence.TemporalType.DATE)
private Date clearingDate;
@OneToOne
private Advisor advisor;
@Column
private Long **advisorId**;
}
我想用Hibernate Criteria编写查询
Select pd.* from PayoutDetails pd, PayoutHeader ph where pd.payoutheaderId = ph.id and pd.advisorId = 1 and and ph.chequeIssuedDate BETWEEN STR_TO_DATE('01-01-2011', '%d-%m-%Y') AND STR_TO_DATE('31-12-2011', '%d-%m-%Y') ";
我写了这样的查询
public List<PayoutDetails> getPayoutDetails(AdvisorReportForm advisorReportForm) {
Criteria criteria = getSession().createCriteria(PayoutDetails.class);
if (advisorReportForm.getAdvisorId() != null && advisorReportForm.getAdvisorId() > 0) {
criteria.add(Restrictions.eq("advisorId", advisorReportForm.getAdvisorId().toString()));
}
criteria.setFetchMode("PayoutHeader", FetchMode.JOIN)
.add(Restrictions.between("chequeIssuedDate", advisorReportForm.getFromDate(), advisorReportForm.getToDate()));
return criteria.list();
}
但是给出了错误
org.hibernate.QueryException:无法解析属性:chequeIssuedDate:org.commission.domain.payout.PayoutDetails
我想是试图在 PayoutDetails
找到 chequeIssuedDate
字段,但是这个字段在 PayoutHeader
. 如何在加入期间指定别名?
1 回答
criteria.setFetchMode("PayoutHeader", FetchMode.JOIN)
只是指定您希望通过连接获取标头,在这种情况下可能不需要 . 它不会更改限制中使用的表 . 为此,您可能希望创建一个附加条件或别名,或多或少,如下所示:或(使用别名)
有关此示例,请参见the Hibernate docs on Criteria Queries .
将
advisorId
转换为字符串也可能不合适,因为它实际上是Long
并且可能映射到sql中的数字字段 .如果映射
advisor
,并且使用基于advisor
字段的限制,类似于处理payoutHeader
字段的方式,通常也不会映射类似于此advisorId
字段的内容 .我不担心从 Headers 中获取所有字段,但如果让
createCriteria
版本工作,它可能会有所不同 .