删除实体

Question

我有四个实体Client，ClientAccount，ClientProductAccount和ClientProduct。客户端包含一组ClientAccounts，而ClientAccount包含一组ClientProductAccount，ClientProductAccount具有对ClientProduct的引用。客户也有一组ClientProducts。我正在做的是删除ClientProduct，所以我要做的是删除具有给定ClientProduct的ClientProductAccount，然后从Client中删除ClientProduct。 经过这个过程，我得到

  

org.hsqldb.HsqlException：违反完整性约束：外键   没有行动FK_7DMBVW6DMUIW2SFWLAQPS42HQ表：CLIENTPRODUCTACCOUNT

到目前为止，我只删除ClientProductAccount并删除了该实体，结果sql为：

Hibernate: 
    delete 
    from
        ClientProductAccount 
    where
        id=? 
        and version=?

另一方面，当我添加任务的下一部分以从客户端实体中删除ClientProduct时，我遇到了违反完整性约束和以下sql命令的异常：

Hibernate: 
    update
        ClientProductAccount 
    set
        version=?,
        accountPriority=? 
    where
        id=? 
        and version=?
Hibernate: 
    delete 
    from
        ClientProduct 
    where
        id=? 
        and version=?

型号：

@Entity
public class Client {
        ...
    @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
    @JoinColumn(name = "client_id", nullable = false, updatable = false)
    private Set<ClientAccount> accounts = new HashSet<>();

    @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
    @JoinColumn(name = "client_id", nullable = false, updatable = false)
    private Set<ClientProduct> products = new HashSet<>();
        ...
}

@Entity
public class ClientAccount {
        ...
    @OneToMany(fetch = FetchType.LAZY, cascade = {CascadeType.ALL}, orphanRemoval = true)
    @JoinColumn(name = "clientAccount_id", nullable = false, updatable = false)
    Set<ClientProductAccount> productOfAccountSet = new HashSet<>();
        ...
}

@Entity
public class ClientProductAccount {
    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    @JoinColumn(name = "clientProduct_id", nullable = false, updatable = false)
    ClientProduct product;
        ...
}

和ClientProduct：

@Entity
public class ClientProduct {
    @NotNull
    @Enumerated(EnumType.STRING)
    @Column(nullable = false, length = CommonColumns.ENUM_LENGTH)
    ProductType productType;
    ...
}

负责删除的代码：

        Set<ProductType> toBeDeletedProductsSet = client.getProducts().stream()
                .map(ClientProduct::getProductType)
                .filter(productType -> !productTypeList.contains(productType))
                .collect(toSet());
        client.getAccounts().forEach(
                clientAccount -> clientAccount.getProductOfAccountSet().removeIf(
                        clientProductAccount -> toBeDeletedProductsSet.contains(clientProductAccount.getProduct().getProductType())
                )
        );

        client.getProducts()
                .removeIf(clientProduct -> !productTypeList.contains(clientProduct.getProductType()));

结果应该是，应删除给定ClientProduct的ClientProductAccount，也应删除Client Entity中的ClientProduct。但我得到以下异常：

  

由于：org.hsqldb.HsqlException：违反完整性约束：   外键无动作； FK_7DMBVW6DMUIW2SFWLAQPS42HQ表：   org.hsqldb.error.Error.error处的CLIENTPRODUCTACCOUNT（来源未知）     在org.hsqldb.StatementDML.performReferentialActions（未知来源）     在org.hsqldb.StatementDML.delete（未知来源）处   org.hsqldb.StatementDML.executeDeleteStatement（来源未知）   org.hsqldb.StatementDML.getResult（未知源）位于   org.hsqldb.StatementDMQL.execute（未知来源）位于   org.hsqldb.Session.executeCompiledStatement（未知来源）位于   org.hsqldb.Session.execute（未知来源）...还有63个