org.hibernate.MappingException using annotations
I am using JPA annotations for these two classes:
@Entity
@RooJavaBean
@RooToString
@RooEntity
@MappedSuperclass
public abstract class BaseEntity {
@Temporal(TemporalType.TIMESTAMP)
@DateTimeFormat(style = "S-")
private Calendar created;
@Temporal(TemporalType.TIMESTAMP)
@DateTimeFormat(style = "S-")
private Calendar updated;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "id")
private Long id;
@Version
@Column(name = "version")
protected Integer version;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Integer getVersion() {
return version;
}
public void setVersion(Integer version) {
this.version = version;
}
@PrePersist
protected void onCreate() {
created = Calendar.getInstance();
}
@PreUpdate
protected void onUpdate() {
updated = Calendar.getInstance();
}
}
@Entity
@RooJavaBean
@RooToString
@RooEntity
public class Event extends BaseEntity {
private Score challenger;
private Score defender;
...
}
@Entity
@RooJavaBean
@RooToString
@RooEntity
public class Score extends BaseEntity {
@ManyToOne
private Team team;
private Event event;
private Integer score;
private Boolean accepted;
}
I get an exception though:
Caused by: org.hibernate.MappingException: Could not determine type for: edu.unlv.cs.ladders.entities.Score, at table: event, for columns: [org.hibernate.mapping.Column(challenger)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:269)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
at org.hibernate.mapping.Property.isValid(Property.java:185)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:440)
at org.hibernate.mapping.RootClass.validate(RootClass.java:192)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1108)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1293)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:859)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
Does this have to do with having two separate fields that access the same class? Do I have to be more descriptive and specif开发者_JS百科y column names or something?
You need to annotate the Score
properties with ManyToOne
or OneToOne
.
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