HQL org.hibernate.QueryException：無法解析屬性

Question

我想編寫簡單的不存在where子句的HQL查詢。我對Hibernate並不熟悉，並且遇到了一些小問題。

我的查詢是這樣的：

from Day as d 
where d.IDFest = 27 
and not exists (
    from tickets t 
    where t.IDUser = 1 
    and t.IDFest = 27 
) 

我想選擇與切割含門票天買的那一天ID用戶所所有的日子。所有這些都與IDFest的節日相關聯。

我的堆棧跟蹤：

org.hibernate.QueryException: could not resolve property: IDFest of: entities.Day [from entities.Day as d where d.IDFest = 27 and not exists ( from tickets t  where t.IDUser = 1 and t.IDFest = 27) ] 
at org.hibernate.QueryException.generateQueryException(QueryException.java:137)  
at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:120)  
at org.hibernate.hql.internal.classic.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:247)  
at org.hibernate.hql.internal.classic.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:209)  
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:126)  
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:88)  
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:190) 
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)  
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)  
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1796) 
Caused by: org.hibernate.QueryException: could not resolve property: IDFest of: entities.Day  
at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:83)  
at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:77) 
at org.hibernate.persister.entity.AbstractEntityPersister.toType(AbstractEntityPersister.java:1978)  
at org.hibernate.hql.internal.classic.PathExpressionParser.getPropertyType(PathExpressionParser.java:291) 
at org.hibernate.hql.internal.classic.PathExpressionParser.end(PathExpressionParser.java:334) 
at org.hibernate.hql.internal.classic.WhereParser.doPathExpression(WhereParser.java:371)  
at org.hibernate.hql.internal.classic.WhereParser.doToken(WhereParser.java:404)  
at org.hibernate.hql.internal.classic.WhereParser.token(WhereParser.java:285) 
at org.hibernate.hql.internal.classic.ClauseParser.token(ClauseParser.java:107)  
at org.hibernate.hql.internal.classic.PreprocessingParser.token(PreprocessingParser.java:131) 
at org.hibernate.hql.internal.classic.ParserHelper.parse(ParserHelper.java:61) 
at org.hibernate.hql.internal.classic.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:239)  ... 9 more 

類映射：

Day.java

package entities; 
// Generated Feb 17, 2017 1:18:27 AM by Hibernate Tools 4.3.1 

/** 
* Day generated by hbm2java 
*/ 
@Entity 
@Table(name = "day", catalog = "pia" 
) 
public class Day implements java.io.Serializable { 

private Integer idday; 
private Festivals festivals; 
private Date date; 
private int totalTickets; 
private int leftTickets; 

public Day() { 
} 

@Id 
@GeneratedValue(strategy = IDENTITY) 

@Column(name = "IDDay", unique = true, nullable = false) 
public Integer getIdday() { 
    return this.idday; 
} 

public void setIdday(Integer idday) { 
    this.idday = idday; 
} 

@ManyToOne(fetch = FetchType.EAGER) 
@JoinColumn(name = "IDFest", nullable = false) 
public Festivals getFestivals() { 
    return this.festivals; 
} 

public void setFestivals(Festivals festivals) { 
    this.festivals = festivals; 
} 

@Temporal(TemporalType.DATE) 
@Column(name = "date", nullable = false, length = 10) 
public Date getDate() { 
    return this.date; 
} 

public void setDate(Date date) { 
    this.date = date; 
} 

@Column(name = "totalTickets", nullable = false) 
public int getTotalTickets() { 
    return this.totalTickets; 
} 

public void setTotalTickets(int totalTickets) { 
    this.totalTickets = totalTickets; 
} 

@Column(name = "leftTickets", nullable = false) 
public int getLeftTickets() { 
    return this.leftTickets; 
} 

public void setLeftTickets(int leftTickets) { 
    this.leftTickets = leftTickets; 
} 

} 

Festivals.java

package entities; 
// Generated Feb 17, 2017 1:18:27 AM by Hibernate Tools 4.3.1 

/** 
* Festivals generated by hbm2java 
*/ 
@Entity 
@Table(name = "festivals", catalog = "pia" 
) 
public class Festivals implements java.io.Serializable { 

private Integer idfest; 
private String name; 
private String place; 
private Date begin; 
private Date end; 
private int priceDay; 
private int priceFestival; 
private String facebook; 
private String twitter; 
private String instagram; 
private String youtube; 
private long visited; 
private int ticketsPerUser; 
private int ticketsPerDay; 
private int totalRating; 
private int numberRatings; 
private Set<Users> userses = new HashSet<Users>(0); 
private Set<Messages> messageses = new HashSet<Messages>(0); 
private Set<Files> fileses = new HashSet<Files>(0); 
private Set<Day> days = new HashSet<Day>(0); 
private Set<Performers> performerses = new HashSet<Performers>(0); 
private Set<Tickets> ticketses = new HashSet<Tickets>(0); 
private Set<Comments> commentses = new HashSet<Comments>(0); 

public Festivals() { 
} 

@Id 
@GeneratedValue(strategy = IDENTITY) 

@Column(name = "IDFest", unique = true, nullable = false) 
public Integer getIdfest() { 
    return this.idfest; 
} 

public void setIdfest(Integer idfest) { 
    this.idfest = idfest; 
} 

@Column(name = "name", nullable = false, length = 45) 
public String getName() { 
    return this.name; 
} 

public void setName(String name) { 
    this.name = name; 
} 

@Column(name = "place", nullable = false, length = 45) 
public String getPlace() { 
    return this.place; 
} 

public void setPlace(String place) { 
    this.place = place; 
} 

@Temporal(TemporalType.DATE) 
@Column(name = "begin", nullable = false, length = 10) 
public Date getBegin() { 
    return this.begin; 
} 

public void setBegin(Date begin) { 
    this.begin = begin; 
} 

@Temporal(TemporalType.DATE) 
@Column(name = "end", nullable = false, length = 10) 
public Date getEnd() { 
    return this.end; 
} 

public void setEnd(Date end) { 
    this.end = end; 
} 

@Column(name = "priceDay", nullable = false) 
public int getPriceDay() { 
    return this.priceDay; 
} 

public void setPriceDay(int priceDay) { 
    this.priceDay = priceDay; 
} 

@Column(name = "priceFestival", nullable = false) 
public int getPriceFestival() { 
    return this.priceFestival; 
} 

public void setPriceFestival(int priceFestival) { 
    this.priceFestival = priceFestival; 
} 

@Column(name = "facebook", length = 100) 
public String getFacebook() { 
    return this.facebook; 
} 

public void setFacebook(String facebook) { 
    this.facebook = facebook; 
} 

@Column(name = "twitter", length = 100) 
public String getTwitter() { 
    return this.twitter; 
} 

public void setTwitter(String twitter) { 
    this.twitter = twitter; 
} 

@Column(name = "instagram", length = 100) 
public String getInstagram() { 
    return this.instagram; 
} 

public void setInstagram(String instagram) { 
    this.instagram = instagram; 
} 

@Column(name = "youtube", length = 100) 
public String getYoutube() { 
    return this.youtube; 
} 

public void setYoutube(String youtube) { 
    this.youtube = youtube; 
} 

@Column(name = "visited", nullable = false) 
public long getVisited() { 
    return this.visited; 
} 

public void setVisited(long visited) { 
    this.visited = visited; 
} 

@Column(name = "ticketsPerUser", nullable = false) 
public int getTicketsPerUser() { 
    return this.ticketsPerUser; 
} 

public void setTicketsPerUser(int ticketsPerUser) { 
    this.ticketsPerUser = ticketsPerUser; 
} 

@Column(name = "ticketsPerDay", nullable = false) 
public int getTicketsPerDay() { 
    return this.ticketsPerDay; 
} 

public void setTicketsPerDay(int ticketsPerDay) { 
    this.ticketsPerDay = ticketsPerDay; 
} 

@Column(name = "totalRating", nullable = false) 
public int getTotalRating() { 
    return this.totalRating; 
} 

public void setTotalRating(int totalRating) { 
    this.totalRating = totalRating; 
} 

@Column(name = "numberRatings", nullable = false) 
public int getNumberRatings() { 
    return this.numberRatings; 
} 

public void setNumberRatings(int numberRatings) { 
    this.numberRatings = numberRatings; 
} 

@ManyToMany(fetch = FetchType.EAGER, mappedBy = "festivalses") 
public Set<Users> getUserses() { 
    return this.userses; 
} 

public void setUserses(Set<Users> userses) { 
    this.userses = userses; 
} 

@OneToMany(fetch = FetchType.EAGER, mappedBy = "festivals") 
public Set<Messages> getMessageses() { 
    return this.messageses; 
} 

public void setMessageses(Set<Messages> messageses) { 
    this.messageses = messageses; 
} 

@OneToMany(fetch = FetchType.EAGER, mappedBy = "festivals") 
public Set<Files> getFileses() { 
    return this.fileses; 
} 

public void setFileses(Set<Files> fileses) { 
    this.fileses = fileses; 
} 

@OneToMany(fetch = FetchType.EAGER, mappedBy = "festivals") 
public Set<Day> getDays() { 
    return this.days; 
} 

public void setDays(Set<Day> days) { 
    this.days = days; 
} 

@OneToMany(fetch = FetchType.EAGER, mappedBy = "festivals") 
public Set<Performers> getPerformerses() { 
    return this.performerses; 
} 

public void setPerformerses(Set<Performers> performerses) { 
    this.performerses = performerses; 
} 

@OneToMany(fetch = FetchType.EAGER, mappedBy = "festivals") 
public Set<Tickets> getTicketses() { 
    return this.ticketses; 
} 

public void setTicketses(Set<Tickets> ticketses) { 
    this.ticketses = ticketses; 
} 

@OneToMany(fetch = FetchType.EAGER, mappedBy = "festivals") 
public Set<Comments> getCommentses() { 
    return this.commentses; 
} 

public void setCommentses(Set<Comments> commentses) { 
    this.commentses = commentses; 
} 

} 

Tickets.java

package entities; 
// Generated Feb 17, 2017 1:18:27 AM by Hibernate Tools 4.3.1 

/** 
* Tickets generated by hbm2java 
*/ 
@Entity 
@Table(name = "tickets", catalog = "pia" 
) 
public class Tickets implements java.io.Serializable { 

private Integer idtic; 
private Festivals festivals; 
private Users users; 
private int isBought; 
private int price; 
private Date date; 

public Tickets() { 
} 

@Id 
@GeneratedValue(strategy = IDENTITY) 

@Column(name = "IDTic", unique = true, nullable = false) 
public Integer getIdtic() { 
    return this.idtic; 
} 

public void setIdtic(Integer idtic) { 
    this.idtic = idtic; 
} 

@ManyToOne(fetch = FetchType.EAGER) 
@JoinColumn(name = "IDFest", nullable = false) 
public Festivals getFestivals() { 
    return this.festivals; 
} 

public void setFestivals(Festivals festivals) { 
    this.festivals = festivals; 
} 

@ManyToOne(fetch = FetchType.EAGER) 
@JoinColumn(name = "IDUser", nullable = false) 
public Users getUsers() { 
    return this.users; 
} 

public void setUsers(Users users) { 
    this.users = users; 
} 

@Column(name = "isBought", nullable = false) 
public int getIsBought() { 
    return this.isBought; 
} 

public void setIsBought(int isBought) { 
    this.isBought = isBought; 
} 

@Column(name = "price", nullable = false) 
public int getPrice() { 
    return this.price; 
} 

public void setPrice(int price) { 
    this.price = price; 
} 

@Temporal(TemporalType.DATE) 
@Column(name = "date", nullable = false, length = 10) 
public Date getDate() { 
    return this.date; 
} 

public void setDate(Date date) { 
    this.date = date; 
} 

} 

Answer 1

你應該在你的查詢（不SQL）使用HQL像

where d.festivals.id = 27