J'ai une simple hiérarchie de classes que j'essaie d'utiliser avec Hibernate/JPA.Séparation d'une entité Hibernate entre 2 tables
Fondamentalement, ce que je veux, c'est que les données de mouvement soient dans leur propre table avec un FK à l'id entier de la table de véhicule principal dans la base de données.
Est-ce que je fais quelque chose de mal? Comment puis-je accomplir quelque chose de similaire? Je suis sûr que je suis la spécification JPA. (EJB3 En action dit cela devrait fonctionner: EJB3 In Action: @SecondaryTable
est ici une partie de l'exception que je reçois:
SEVERE: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session)
org.hibernate.AssertionFailure: Table MOVEMENT_DATA not found
at org.hibernate.persister.entity.JoinedSubclassEntityPersister.getTableId(JoinedSubclassEntityPersister.java:480)
at org.hibernate.persister.entity.JoinedSubclassEntityPersister.<init>(JoinedSubclassEntityPersister.java:259)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:87)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:261)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)
Voici quelques-unes des informations de log d'Hibernate qui concerne le véhicule ... Il dirait qu'il reconnaît tout va bien .. Ensuite, il jette l'exception pour une raison quelconque.
INFO: Binding entity from annotated class: com.dataobject.Vehicle
FINE: Import with entity name Vehicle
INFO: Bind entity com.dataobject.Vehicle on table VEHICLE
INFO: Adding secondary table to entity com.dataobject.Vehicle -> MOVEMENT_DATA
FINE: Processing com.dataobject.Vehicle property annotation
FINE: Processing annotations of com.dataobject.Vehicle.id
FINE: Binding column id. Unique false. Nullable false.
FINE: id is an id
FINE: building SimpleValue for id
FINE: Building property id
FINEST: Cascading id with null
FINE: Bind @Id on id
FINE: Processing annotations of com.dataobject.Vehicle.color
FINE: Binding column COLOR. Unique false. Nullable true.
FINE: binding property color with lazy=false
FINE: building SimpleValue for color
FINE: Building property color
FINEST: Cascading color with null
FINE: Processing annotations of com.dataobject.Vehicle.movementData
FINE: Binding column movementData. Unique false. Nullable true.
FINE: Binding component with path: com.dataobject.Vehicle.movementData
FINE: Processing com.dataobject.MovementData property annotation
FINE: Processing annotations of com.dataobject.MovementData.latitude
FINE: Column(s) overridden for property latitude
FINE: Binding column LATITUDE. Unique false. Nullable true.
FINE: binding property latitude with lazy=false
FINE: building SimpleValue for latitude
FINE: Building property latitude
FINEST: Cascading latitude with null
FINE: Processing annotations of com.dataobject.MovementData.longitude
FINE: Column(s) overridden for property longitude
FINE: Binding column LONGITUDE. Unique false. Nullable true.
FINE: binding property longitude with lazy=false
FINE: building SimpleValue for longitude
FINE: Building property longitude
FINEST: Cascading longitude with null
FINE: Processing annotations of com.dataobject.MovementData.speed
FINE: Column(s) overridden for property speed
FINE: Binding column SPEED. Unique false. Nullable true.
FINE: binding property speed with lazy=false
FINE: building SimpleValue for speed
FINE: Building property speed
FINEST: Cascading speed with null
FINE: Processing annotations of com.dataobject.MovementData.timeOfPosition
FINE: Column(s) overridden for property timeOfPosition
FINE: Binding column TIME_OF_POSITION. Unique false. Nullable true.
FINE: binding property timeOfPosition with lazy=false
FINE: building SimpleValue for timeOfPosition
FINE: Building property timeOfPosition
FINEST: Cascading timeOfPosition with null
FINE: Building property movementData
FINEST: Cascading movementData with null
FINE: Processing annotations of com.dataobject.Vehicle.numWheels
FINE: Binding column NUM_WHEELS. Unique false. Nullable true.
FINE: binding property numWheels with lazy=false
FINE: building SimpleValue for numWheels
FINE: Building property numWheels
FINEST: Cascading numWheels with null
INFO: Binding entity from annotated class: com.dataobject.Car
FINE: Binding column id. Unique false. Nullable false.
FINE: Subclass joined column(s) created
FINE: Import with entity name Car
INFO: Bind entity com.dataobject.Car on table CAR
FINE: Processing com.dataobject.Car property annotation
FINE: Processing annotations of com.dataobject.Car.make
FINE: Binding column MAKE. Unique false. Nullable true.
FINE: binding property make with lazy=false
FINE: building SimpleValue for make
FINE: Building property make
véhicule est la classe parente
/**
* Entity implementation class for Entity: Vehicle
*
*/
@Entity
@Table(name="VEHICLE")
@Inheritance(strategy=InheritanceType.JOINED)
@SecondaryTable(name="MOVEMENT_DATA",
pkJoinColumns = {
@PrimaryKeyJoinColumn(name = "ID")
}
)
public class Vehicle implements Serializable {
private int numWheels;
private String color;
private int id;
private MovementData movementData;
private static final long serialVersionUID = 1L;
public Vehicle() {
super();
}
@Embedded
@AttributeOverrides({
@AttributeOverride(
name = "speed",
column = @Column(name = "SPEED",
table = "MOVEMENT_DATA")
),
@AttributeOverride(
name = "timeOfPosition",
column = @Column(name = "TIME_OF_POSITION",
table = "MOVEMENT_DATA")
),
@AttributeOverride(
name = "longitude",
column = @Column(name = "LONGITUDE",
table = "MOVEMENT_DATA")
),
@AttributeOverride(
name = "latitude",
column = @Column(name = "LATITUDE",
table = "MOVEMENT_DATA")
)
})
public MovementData getMovementData() {
return movementData;
}
public void setMovementData(MovementData movementData) {
this.movementData = movementData;
}
@Column(name="NUM_WHEELS")
public int getNumWheels() {
return this.numWheels;
}
public void setNumWheels(int numWheels) {
this.numWheels = numWheels;
}
@Column(name="COLOR")
public String getColor() {
return this.color;
}
public void setColor(String color) {
this.color = color;
}
@Id
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
}
étend voiture véhicule
/**
* Entity implementation class for Entity: Car
*/
@Entity
@Table(name="CAR")
public class Car extends Vehicle implements Serializable {
private String make;
private static final long serialVersionUID = 1L;
public Car() {
super();
}
/**
* @return
*/
@Column(name="MAKE")
public String getMake() {
return this.make;
}
/**
* @param make
*/
public void setMake(String make) {
this.make = make;
}
}
MovementData est intégré dans des véhicules
@Embeddable
public class MovementData implements Serializable {
private double speed;
private Date timeOfPosition;
private double latitude;
private double longitude;
private static final long serialVersionUID = 1L;
public MovementData() {
super();
}
/**
* @return
*/
@Column(name="SPEED")
public double getSpeed() {
return this.speed;
}
/**
* @param speed
*/
public void setSpeed(double speed) {
this.speed = speed;
}
/**
* @return
*/
@Column(name="TIME_OF_POSITION")
public Date getTimeOfPosition() {
return this.timeOfPosition;
}
/**
* @param timeOfPosition
*/
public void setTimeOfPosition(Date timeOfPosition) {
this.timeOfPosition = timeOfPosition;
}
/**
* @return
*/
@Column(name="LONGITUDE")
public double getLongitude() {
return this.longitude;
}
/**
* @param longitude
*/
public void setLongitude(double longitude) {
this.longitude = longitude;
}
/**
* @return
*/
@Column(name="LATITUDE")
public double getLatitude() {
return this.latitude;
}
/**
* @param latitude
*/
public void setLatitude(double latitude) {
this.latitude = latitude;
}
}
Unité Persistance:
<properties>
<!-- The database dialect to use -->
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
<!-- drop and create tables at deployment -->
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<!-- Hibernate Query Language (HQL) parser. -->
<!-- property name="hibernate.cache.provider_class" value="net.sf.ehcache.hibernate.EhCacheProvider" /-->
<!-- property name="hibernate.cache.provider_class" value="org.hibernate.cache.JbossCacheProvider" /-->
<property name ="hibernate.show_sql" value="false" />
<property name ="hibernate.format_sql" value="false" />
<property name="hibernate.cache.provider_class" value="net.sf.ehcache.hibernate.SingletonEhCacheProvider" />
</properties>
je create-drop set (voir mon persistence.xml ci-dessus). Je l'ai juste essayé avec la mise à jour à la place, et cela ne fonctionne toujours pas avec la même erreur. – systemoutprintln
REMARQUE pour toute personne ayant ce problème: Réponse a été sélectionnée automatiquement ... Cela ne fonctionne pas. – systemoutprintln