The order of deletes for OpenJPA 2.3.x are happening in the wrong order and I
can't figure out why.
Given these JPA mappings
// grandparent
@Entity
@Table(name = "three_phase_motor_input")
public class ThreePhaseMotorInput implements IThreePhaseMotorInput,
Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Version
private Integer version;
@OneToOne(orphanRemoval = true, cascade = CascadeType.ALL,
optional =
true, targetEntity = UnapprovedThreePhaseMotor.class)
@JoinColumn(name = "unapproved_id")
private IThreePhaseMotor unapprovedMotor;
// parent
@Entity
@Table(name = "unapproved_three_phase_motor")
public class UnapprovedThreePhaseMotor extends ThreePhaseMotor {
@OneToMany(orphanRemoval = true, cascade = CascadeType.ALL,
fetch =
FetchType.LAZY, targetEntity = UnapprovedThreePhaseWire.class)
@JoinColumn(name = "motor_id", referencedColumnName = "id",
nullable =
false)
@OrderColumn(name = "idx")
private List<IThreePhaseWire> wires;
// child - Abstract
@MappedSuperclass
@Access(AccessType.FIELD)
public abstract class ThreePhaseWire implements IThreePhaseWire,
Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
// child concrete
@Entity
@Table(name = "unapproved_three_phase_wire")
public class UnapprovedThreePhaseWire extends ThreePhaseWire {
Order of SQL statements in log file when setting unapprovedMotor in
grandparent to null
572353115 UPDATE three_phase_motor_input SET status = ?, version = ?,
approved_id = ?, unapproved_id = ? WHERE id = ? AND version = ?
[params=(int) 1, (int) 8, (null) null, (null) null, (long) 896, (int) 7]
1683522521 DELETE FROM unapproved_three_phase_motor WHERE id = ? AND
version = ? [params=(long) 209938, (int) 1]
446470297 DELETE FROM unapproved_three_phase_wire WHERE id = ?
[params=(long) 1394]
This causes a foreign key constraint error since the child still exists when
the parent delete statement is executed.
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