Hi at all,
I have a configuration problem with JPA. I have a class Measurement which is referencing a class Metric. In my database the tables T_Measurement and T_Metric. T_Measurement references the primary key METRIC_ID from T_Metric. I have problems to reflect this structure in JPA.
@Entity
@Table(name="T_MEASUREMENT")
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="DISCRIMINATOR", discriminatorType=DiscriminatorType.STRING)
public class Measurement {
@Id
@Column(name="MEASUREMENT_ID")
private String id; //measurement_id/primary key
@ManyToOne //bi-directional many-to-one association to Metric
@JoinColumn(name="METRIC_ID")
private Metric metricObject;
...
-------------------
@Entity
@Table(name="T_METRIC")
public class Metric {
@Id
@Column(name="METRIC_ID")
private String id;
@Column(name="METRIC_NAME")
private String name;
//bi-directional many-to-one association to MetricType
@ManyToOne
@JoinColumn(name="METRIC_TYPE_ID")
private MetricType metricType;
@OneToMany(mappedBy = "metricObject") //bi-directional many-to-one association to Measurement
private Set<Measurement> measurements = new HashSet<Measurement>();
...
-------------------
Hibernate always references false column name:
DEBUG [main] org.hibernate.SQL: insert into T_MEASUREMENT (metricObject_METRIC_ID, timestamp, VALUE_LONG, DISCRIMINATOR, MEASUREMENT_ID) values (?, ?, ?, 'VALUE_LONG', ?)
I would like to have: insert into T_MEASUREMENT (METRIC_ID, timestamp, VALUE_LONG, DISCRIMINATOR, MEASUREMENT_ID) values (?, ?, ?, 'VALUE_LONG', ?)
Does anyone know what I'm doing wrong?
Thank you for your answers!
aness2
