HQL: Недопустимый путь в множества различных Присоединяется

Question

Я пытаюсь преобразовать этот SQL-запрос в HQL:

SELECT 
elements of t2 
FROM 
    debitant t2 
    INNER JOIN debit t3 ON t2.id_debit = t3.id 
    INNER JOIN l_debit_saci t7 ON t3.id = t7.id_debit AND t7.principal = 1 
    INNER JOIN rushServices t8 ON t7.code_acs = t8.acs 
    INNER JOIN bulletin_correction t10 ON t2.id = t10.id_debitant 
    LEFT OUTER JOIN l_debitant_complement t9 ON t2.adr_info = t9.id 
    INNER JOIN commune t6 ON t3.adr_cc = t6.id 
WHERE 
     t2.id = @debitant_id AND t10.annee = @PECAnnee 
ORDER BY 
    t3.adr_cp , t2.id 

HQL код, который я попытался это:

buffer = new StringBuilder(); 
buffer.append("SELECT D "); 
buffer.append("FROM " + getEntityClassName() + " D "); 
buffer.append("INNER JOIN FETCH D.debit DE "); 
buffer.append("INNER JOIN FETCH DE.sacis DS "); 
buffer.append("INNER JOIN FETCH DS.service RS "); 
buffer.append("INNER JOIN BulletinCorrectionMod.debitant BC "); 
buffer.append("LEFT OUTER JOIN D.adresseInfo DEC "); 
buffer.append("INNER JOIN FETCH DE.adresseCommune CO ");    
buffer.append("WHERE DS.principal = 1 "); 
buffer.append("AND D.id = :debitantId "); 
buffer.append("AND DC.annee = :annee "); 
buffer.append("ORDER BY DE.adresseCodePostal, D.id"); 

hqlQuery = session.createQuery(buffer.toString()); 
hqlQuery.setInteger("debitantId", debitantId); 
hqlQuery.setInteger("annee", year); 

Этот код возврата эта ошибка: Недопустимый путь: 'BulletinCorrectionMod.debitant'

Здесь все DAO с их отношений:

DebitantMod:

@Entity 
@Table(name = "debitant") 
public class DebitantMod implements Serializable 
{ 
@Id 
@Column(name = "id", nullable = false) 
@GeneratedValue(strategy = GenerationType.AUTO, generator = "sequence_name") 
@SequenceGenerator(name = "sequence_name", sequenceName = "debitant_id_seq") 
private Integer id = null; 

@Column(name = "adr_info", nullable = true) 
private Integer adresseInfo = null; 

@ManyToOne(fetch = FetchType.LAZY) 
@JoinColumn(name = "id_debit", nullable = false) 
private DebitMod debit = null; 

.... 
} 

DebitMod:

@Entity 
@Table(name = "debit") 
public class DebitMod implements Serializable 
{ 
@Id 
@Column(name = "id", nullable = false) 
@GeneratedValue(strategy = GenerationType.AUTO, generator = "sequence_name") 
@SequenceGenerator(name = "sequence_name", sequenceName = "debit_id_seq") 
private Integer id = null; 

@OneToMany(mappedBy = "debit", fetch = FetchType.LAZY) 
private Set<DebitantMod> debitants = null; 

@ManyToOne(fetch = FetchType.LAZY) 
@JoinColumn(name = "adr_cc", nullable = true, columnDefinition = "bpchar") 
private CommuneMod adresseCommune = null; 

... 
} 

DebitSaciMod:

@Entity 
@Table(name = "l_debit_saci") 
public class DebitSaciMod implements Serializable 
{ 

@Id 
@Column(name = "id", nullable = false) 
@GeneratedValue(strategy = GenerationType.AUTO, generator = "sequence_name") 
@SequenceGenerator(name = "sequence_name", sequenceName = "l_debit_saci_id_seq") 
private Integer id = null; 

@ManyToOne(fetch = FetchType.LAZY) 
@JoinColumn(name = "id_debit", nullable = false) 
private DebitMod debit = null; 

@ManyToOne(fetch = FetchType.LAZY) 
@JoinColumn(name = "code_acs", nullable = false) 
private RushServiceMod service = null; 

... 
} 

RushServiceMod:

@Entity 
@Table(name = "rushservices") 
public class RushServiceMod implements Serializable 
{ 

@Id 
@Column(name = "acs", nullable = false) 
private String acs = null; 

... 
} 

BulletinCorrectionMod:

@Entity 
@Table(name = "bulletin_correction") 
public class BulletinCorrectionMod implements Serializable{ 

@ManyToOne(fetch = FetchType.LAZY) 
@JoinColumn(name = "id_debitant", nullable = false) 
private DebitantMod debitant = null; 

@Column(name = "annee", nullable = false) 
private Integer annee = null; 

... 
} 

DebitantComplementMod:

@Entity 
@Table(name = "l_debitant_complement") 
public class DebitantComplementMod implements Serializable{ 

@Id 
@Column(name = "id", nullable = false) 
@GeneratedValue(strategy = GenerationType.AUTO, generator = "sequence_name") 
@SequenceGenerator(name = "sequence_name", sequenceName = "l_debitant_complement_id_seq") 
private Integer id = null; 

... 
} 

CommuneMod:

@Entity 
@Table(name = "commune") 
public class CommuneMod implements Serializable 
{ 

@Id 
@Column(name = "id", nullable = false, columnDefinition = "bpchar") 
private String id = null; 

... 
} 

Answer 1

Проблема в том, что синтаксис недействителен. До Hibernate 5.1 вы можете присоединиться только к связанным объектам, и в вашем случае DebitantMod не имеет отношения к BulletinCorrectionMod.

Вы должны поставить обе сущности в ЕКОМ и добавить contition в WHERE:

`buffer = new StringBuilder(); 
buffer.append("SELECT D "); 
buffer.append("FROM " + getEntityClassName() + " D "); 
buffer.append("INNER JOIN FETCH D.debit DE "); 
buffer.append("INNER JOIN FETCH DE.sacis DS "); 
buffer.append("INNER JOIN FETCH DS.service RS "); 
// buffer.append("INNER JOIN BulletinCorrectionMod.debitant BC "); // invalid - remove this line 
buffer.append("LEFT OUTER JOIN D.adresseInfo DEC "); 
buffer.append("INNER JOIN FETCH DE.adresseCommune CO ");    
buffer.append(", BulletinCorrectionMod BC ");   // add this line 
buffer.append("WHERE DS.principal = 1 "); 
buffer.append("AND D.id = :debitantId "); 
buffer.append("AND DC.annee = :annee "); 
buffer.append("AND BC.debitant = D ");     // and this one 
buffer.append("ORDER BY DE.adresseCodePostal, D.id"); 

Как BulletinCorrectionMod имеет отношение к DebitantMod, другой способ написать запрос является:

buffer = new StringBuilder(); 
buffer.append("SELECT D "); 
buffer.append("FROM BulletinCorrectionMod BC "); 
buffer.append("INNER JOIN BC.debitant D "); 
buffer.append("INNER JOIN FETCH D.debit DE "); 
buffer.append("INNER JOIN FETCH DE.sacis DS "); 
buffer.append("INNER JOIN FETCH DS.service RS "); 
buffer.append("LEFT OUTER JOIN D.adresseInfo DEC "); 
buffer.append("INNER JOIN FETCH DE.adresseCommune CO ");    
buffer.append("WHERE DS.principal = 1 "); 
buffer.append("AND D.id = :debitantId "); 
buffer.append("AND DC.annee = :annee "); 
buffer.append("ORDER BY DE.adresseCodePostal, D.id"); 

И если вы находитесь на Hibernate 5.1 или выше, вы можете присоединиться к несвязанным объектам, взгляните на this