In Junit join columns return as null

Hibernate ORM
1

Hi. There is next mapping

@Data
@Entity
@Table(name = "user_selections_log")
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class UserSelectionLog {
    @EmbeddedId
    private UserSelectionLogId id;

    @EqualsAndHashCode.Exclude
    @ToString.Exclude
    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "logged_as_merchant", insertable = false, updatable = false, nullable = false)
    private Merchant loggedAsMerchant;

    @EqualsAndHashCode.Exclude
    @ToString.Exclude
    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "selected_merchant", insertable = false, updatable = false, nullable = false)
    private Merchant selectedMerchant;

    @Column(nullable = false)
    @UpdateTimestamp
    private Timestamp lastSelectedAt;
}

@Data
@AllArgsConstructor
@NoArgsConstructor
@Embeddable
public class UserSelectionLogId implements Serializable {
    @AttributeOverrides(value = {
            @AttributeOverride(name = "value", column = @Column(name = "logged_as_merchant", nullable = false, unique = true))
    })
    private MerchantId loggedAsMerchant;

    @AttributeOverrides(value = {
            @AttributeOverride(name = "value", column = @Column(name = "selected_merchant", nullable = false, unique = true))
    })
    private MerchantId selectedMerchant;

    @AttributeOverrides(value = {
            @AttributeOverride(name = "value", column = @Column(name = "user_id", nullable = false, unique = true))
    })
    private UserId userId;

}

When I try to fetch object in Junit, EmbeddedId is mapped correctly, but loggedAsMerchant, selectedMerchant are NULL

Why?

image
image2488×518 176 KB

When I try to fetch object via REST API - I get Hibernate Proxy in those fields

        userSelectionLogRepository.save(
            UserSelectionLog.builder()
                .id(new UserSelectionLogId(currentMerchant.getId(), selectedMerchant.getId(), user.getId()))
                .build());

Whats wrong with Junit? Please assist.

2

Found a solution

    entityManager.flush();
    entityManager.clear();

Need to use code above between insert and fetch in Junit

“The issue was that the database population and the test were running in the same transaction, and hibernate cache wasn’t cleaned between these two steps.”