Question

我有两个扩展JpaRepository的存储库，它们与@OneToMany关系相关联。

我发现当我添加一个新子节点并调用save（）方法时，新子节点不仅会被保存，而且父节点和我附加的所有子节点都会更新，即使它们不是脏的。 / p>

这是预期的吗？

父：

public virtual ObjectResult<long?> GetMaximumIDsCount2(Nullable<int> appID, Nullable<int> isBurnCenter, Nullable<int> burnCenterID)
        {
            var appIDParameter = appID.HasValue ?
                new ObjectParameter("AppID", appID) :
                new ObjectParameter("AppID", typeof(int));

            var isBurnCenterParameter = isBurnCenter.HasValue ?
                new ObjectParameter("isBurnCenter", isBurnCenter) :
                new ObjectParameter("isBurnCenter", typeof(int));

            var burnCenterIDParameter = burnCenterID.HasValue ?
                new ObjectParameter("BurnCenterID", burnCenterID) :
                new ObjectParameter("BurnCenterID", typeof(int));

            return ((IObjectContextAdapter)this).ObjectContext.ExecuteStoreQuery<Nullable<long>>("GetMaximumIDsCount @AppID, @isBurnCenter, @BurnCenterID", appIDParameter, isBurnCenterParameter, burnCenterIDParameter);
        }

子：

@ToString(callSuper=true)
@EqualsAndHashCode(exclude={"id", "version", "exchangeName"}, callSuper=false, doNotUseGetters=true)
@NoArgsConstructor
@Entity()
@Table(name = "Exchanges") // uniqueConstraints = {@UniqueConstraint(columnNames = {"mask", "group"})}
public class ExchangeDbo extends Auditable<String> {
  Id @GeneratedValue    
  @Getter private Long id;

  @Version
  private long version;

  @Getter private String exchangeName;  

  @Column(unique = true)
  @Getter private String exchangeNameLowercase;

  @OneToMany(mappedBy = "exchange", 
        cascade = CascadeType.ALL, 
        orphanRemoval = true, 
        fetch = FetchType.EAGER) //temp change fetch to lazy
  @BatchSize(size=100)
  @Getter private List<CurrencyPairDbo> listCurrencyPair = new ArrayList<>();
  public ExchangeDbo(@NonNull String name) {
    this.exchangeName = name;
    this.exchangeNameLowercase = exchangeName.toLowerCase();
  }

  public CurrencyPairDbo addCurrencyPair(CurrencyPair currencyPair) {
    CurrencyPairDbo currencyPairDbo = new CurrencyPairDbo(currencyPair, this);
    listCurrencyPair.add( currencyPairDbo );
    return currencyPairDbo;
  }
}

}

服务程序：

@EqualsAndHashCode(exclude={"id","version", "currencyPair"}, doNotUseGetters=true, callSuper=false)
@NoArgsConstructor
@Entity()
@Table(name = "Coinpairs",
   indexes =  { @Index(columnList = "currencyPair_lowercase", unique = true) 
}
  ) 


public class CurrencyPairDbo extends Auditable<String> {
  @Id @GeneratedValue   
  @Getter private Long id;

  @Version
  private long version;

  @Column(unique=true)
  @Convert(converter = CurrencyPairConverter.class) 
  @Getter private CurrencyPair currencyPair;

  @Column(unique = true, name="currencyPair_lowercase")
  @Getter private String currencyPairNameLowercase;

  @ManyToOne(fetch=FetchType.EAGER) //temp change fetch to lazy
  @Getter private ExchangeDbo exchange;

  @OneToMany(mappedBy = "currencyPair", 
        cascade = CascadeType.ALL, 
        orphanRemoval = true, 
        fetch = FetchType.EAGER) //temp change fetch to lazy
  @BatchSize(size=100)
  @Getter private List<TradeDbo> listTrades = new ArrayList<>();

  @Override
public String toString() {
  ...
}       

public CurrencyPairDbo(@NonNull CurrencyPair currencyPair, 
        @NonNull ExchangeDbo exchangeDbo) {
    this.currencyPair = currencyPair;
    this.currencyPairNameLowercase = currencyPair.toString().toLowerCase();
    this.exchange = exchangeDbo;
}

public void addNewTrade(Trade trade) {
    listTrades.add( new TradeDbo(trade, this) );
}

JpaRepository进行意外更新

0 个答案: