Databases
StackOverflow2013
Postsdbo
POID from parent to child in hibernate
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POID from parent to child in hibernate
    primarykey
    data
    text
    <p>Here is my code. I would like to generate an automatic ID based on parent class. I'm using a method to create Airport, so my ID it's coming with is a null value. ID in AirportModel will be generated, but I don't know how to make it in child class.</p> <pre><code>@Entity(name = "Airport") @Table(name = "ai_airport") public class AirportModel { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "id", nullable = false) private Long id; @OneToMany(cascade = CascadeType.ALL, orphanRemoval = true) @JoinColumn(name = "airport_id") private List&lt;AirportTranslatedModel&gt; translations; </code></pre> <p>Second class(child):</p> <pre><code> @Entity(name = "AirportTranslated") @IdClass(AirportTranslatedModelKey.class) @Table(name = "ai_translated_airport") public class AirportTranslatedModel @Id @Column(name="airport_id") private Long airportId; @Id @Column(name="language_code", length=2) private String languageCode; </code></pre> <p>Third one(keys):</p> <pre><code>@Embeddable public class AirportTranslatedModelKey implements Serializable { @Column(name="airport_id") private Long airportId; @Column(name="language_code", length=2) private String languageCode; </code></pre> <p>I still got the same errors; log:</p> <pre><code>Hibernate: insert into ai_airport (active, airport_code, city_code, country_code, externa l_id, is_default, latitude, longitude, market_code, min_connection_time_DD, min_connection_time_DI, min_connection_time_id, min_connection_time_II, time_diff, VERSION) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) Hibernate: insert into ai_translated_airport (airport_long_name, airport_short_name, airp ort_id, language_code) values (?, ?, ?, ?) ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper - Column 'airport_id' cannot be null </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USMarcin Erbel
    1. USMarcin Erbel
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POID from parent to child in hibernate
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POID from parent to child in hibernate
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    3. VO
      singulars
      1. POID from parent to child in hibernate
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWhat's the question? You want `airportId` in `AirportTranslatedModelKey` to be the generated `id` from `AirportModel`?
      singulars
      1. POID from parent to child in hibernate
      1. USDannyMo
    2. COi think this link will help http://stackoverflow.com/questions/2611619/onetomany-and-composite-primary-keys
      singulars
      1. POID from parent to child in hibernate
      1. USGopal
    3. COyes, exatly that Damo
      singulars
      1. POID from parent to child in hibernate
      1. USMarcin Erbel
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload