java - 在 jpql 查询 select 中传递参数

Question

我有一个 jpql 查询在 select 子句中实例化一个 java 对象

public List<ChampEtatOT> getEtatOT(Date dateDebut, Date dateFin) {      
    Query query = em.createQuery("SELECT NEW ChampEtatOT( ot.numero, uo.denominationFr, ot.etat, ot.dateDebutReelle , ot.dateFinReelle, :dateParam1, :dateParam2, :dateParam3) FROM ordre ot  JOIN ot.unite uo")
            .setParameter("dateParam1", dateDebut, TemporalType.DATE)
            .setParameter("dateParam2", dateFin, TemporalType.DATE)
            .setParameter("dateParam3", new Date("2015-01-01"), TemporalType.DATE);
    return query.getResultList();
}

我放了3个参数，这样我就可以在构造函数中传递它我收到此错误

Caused by: Exception [EclipseLink-6137] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.QueryExceptionException Description: An Exception was thrown while executing a ReportQuery with a constructor expression: java.lang.NoSuchMethodException: dz.elit.gmao.commun.reporting.classe.ChampEtatOT.<init>(java.lang.String, java.lang.String, java.lang.String, java.util.Date, java.util.Date)Query: ReportQuery(referenceClass=TravOrdreTravail jpql="SELECT NEW dz.elit.gmao.commun.reporting.classe.ChampEtatOT( ot.numero, uo.denominationFr, ot.etat, ot.dateDebutReelle , ot.dateFinReelle, :dateParam1, :dateParam2, :dateParam3) FROM TravOrdreTravail ot  JOIN ot.uniteOrganisationnellle uo")

我认为不可能将参数放在 select 子句中，所以有人知道吗，构造函数方法如下:

public ChampEtatOT(String numero, String denominationFr, String etat, Date dateDebutReelle, Date dateFinReelle, Date dateParam1, Date dateParam2, Date dateParam3) {
    this.numero = numero;
    this.denominationFr = denominationFr;

    if (etat.equals("OUV")) {
        if (dateDebutReelle.before(dateParam1)) {
            etatEntreeSortie = "En instance debut du mois";
        } else {
            if (dateDebutReelle.before(dateParam2)) {
                etatEntreeSortie = "En instance fin du mois";
            } else {
                if (dateDebutReelle.after(dateParam1) && dateDebutReelle.before(dateParam2)) {
                    etatEntreeSortie = "Entree/Mois";
                }
            }
        }
    } 
}

Answer 1

问题已解决，正如您建议的那样，bRIMOs Bor 无法在 SELECT 子句中传递参数，因此我检索了列表中的所有结果，然后根据三个日期 date1、date2、date3 过滤结果

Query query = em.createQuery("SELECT NEW ChampEtatAteliers"
            + "( ot.numero, uo.denominationFr, ot.etat, ot.dateDebutReelle, ot.dateFinReelle) "
            + "FROM ordre ot  JOIN ot.unite uo");
    List<ChampEtatAteliers> champEtatAtelierses = query.getResultList();

    for (ChampEtatAteliers champEtatAtelierse : champEtatAtelierses) {

        if (champEtatAtelierse.getDateDebutReelle().compareTo(date1) >= 0 && champEtatAtelierse.getDateDebutReelle().compareTo(date2) <= 0) {
            champEtatAtelierList2.add(new ChampEtatAteliers(champEtatAtelierse.getNumero(), champEtatAtelierse.getDenominationFr(), "Entree/Mois"));
        }

        if (champEtatAtelierse.getEtat().equals("OUV")) {
            if (champEtatAtelierse.getDateDebutReelle().compareTo(date1) < 0) {
                champEtatAtelierse.setEtatEntreeSortie("En instance début du mois");
            } else {
                if (champEtatAtelierse.getDateDebutReelle().compareTo(date2) <= 0) {
                    champEtatAtelierse.setEtatEntreeSortie("En instance fin du mois");
                }
            }
        } 
    }