Saving OneToMany , foreign key not set

[fv967]

I've two tables: TaStock and TaStockPrice. Field tastockid in table TaStockPrice is the foreign key to table TaStock.

    @Entity  
    public class TaStock {  
      
        @Id  
        @GeneratedValue(strategy = GenerationType.IDENTITY)  
        Integer id  
      
        @OneToMany(mappedBy = "taStock", fetch = FetchType.LAZY, cascade = CascadeType.ALL)  
        private List<TaStockPrice> tastockpriceList;  
      
        public void addTaStockPrice(TaStockPrice taStockPrice) {  
           if (taStockPrice == null) {  
               return;  
           }  
           taStockPrice.setTaStock(this);  
           if (tastockpriceList == null) {  
               tastockpriceList = new ArrayList<TaStockPrice>();  
               tastockpriceList.add(taStockPrice);  
           } else if (!tastockpriceList.contains(taStockPrice)) {  
               tastockpriceList.add(taStockPrice);  
           }  
        }  
        ....  
    } 

    @Entity  
    public class TaStockPrice {  
      
        @Id  
        @GeneratedValue(strategy = GenerationType.IDENTITY)  
        Integer id  
      
        @Column(insertable = true)   
        private Integer tastockid;  
      
      
        @ManyToOne(fetch = FetchType.LAZY)  
        @JoinColumn(name = "tastockid", nullable = false, updatable = false, insertable = false)  
        private TaStock taStock;  
        ...  
    } 

persisting taStock with Children

@Test  
@Transactional(propagation = Propagation.REQUIRES_NEW)  
public void createTaStock() throws Exception {  
    TaStock taStock = new TaStock();  
             ...  
  
    TaStockPrice taStockPrice = new TaStockPrice();  
    taStockPrice.setTaStock(taStock);  
             ...  
  
    taStock.addTaStockPrice(taStockPrice);  
    taStockService.persist(taStock);  
} 

When persisting a parent class, hibernate automatically persist the children of that class. But instead, the following exception occurs:

javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationExcepti on: ERROR: null value in column "tastockid" violates not-null constraint

The DB table looks like this:

CREATE TABLE tastockprice
(
id serial NOT NULL,
tastockid integer NOT NULL,
...
CONSTRAINT tastockprice_pkey PRIMARY KEY (id ),
CONSTRAINT tastockprice_tastockid_fkey FOREIGN KEY (tastockid)
REFERENCES tastock (id) MATCH SIMPLE
ON UPDATE CASCADE ON DELETE CASCADE
) 

Many thanks for help,

Frank

[fv967]

I removed "private Integer tastockid" from TaStockPrice, and modified
@JoinColumn(name = "tastockid", nullable = false, updatable = false, insertable = true)

solved.