4

我有以下代码在 HQL 查询List的子句中设置参数NOT IN

private static final String FIND_AVAILABLE_OPERATORS = "FROM Domain domain WHERE domain.type = :type AND domain.operators NOT IN (:operators)";

@SuppressWarnings("unchecked")
@Override
public List<Domain> findAvailableOperators(Domain domain) {
    Query query = null;
    if (domain.getOperators().isEmpty()) {
        query = getCurrentSession().createQuery(FIND_BY_DOMAIN_TYPE); // run another query
    } else {
        query = getCurrentSession().createQuery(FIND_AVAILABLE_OPERATORS);
        query.setParameterList("operators", domain.getOperators());
    }

    query.setParameter("type", DomainType.OPERATOR);
    return query.list();
}

但是SQLGrammarException当我List的不是空的时候我得到一个

org.hibernate.exception.SQLGrammarException: No value specified for parameter 2

我使用setParameterList() 不正确吗？

执行的 SQL 似乎是

Hibernate: select domain0_.domain_id as domain1_2_, domain0_.country as country2_, domain0_.name as name2_, domain0_.type as type2_ from domain domain0_ cross join domain_operators operators1_, domain domain2_ where domain0_.domain_id=operators1_.parent and operators1_.child=domain2_.domain_id and (. not in  (?)) and domain0_.type=?

我从来没有见过(. not in (?))。

编辑：我的Domain实体

@Entity
@Table
public class Domain {
    @Id
    @GenericGenerator(name = "generator", strategy = "increment")
    @GeneratedValue(generator = "generator")
    @Column(name = "domain_id")
    private Long domainId;

    @Column(nullable = false, unique = true)
    @NotNull
    private String name;

    @Column(nullable = false)
    @NotNull
    @Enumerated(EnumType.STRING)
    private DomainType type;

    @ManyToMany(cascade = {
            CascadeType.PERSIST,
            CascadeType.MERGE
    }, fetch = FetchType.EAGER)
    @JoinTable(joinColumns = {
            @JoinColumn(name = "domain_id")
    }, inverseJoinColumns = {
            @JoinColumn(name = "code")
    })
    private Set<NetworkCode> networkCodes = new HashSet<>();

    @ManyToMany(fetch = FetchType.EAGER)
    @JoinTable(joinColumns = {
            @JoinColumn(name = "parent", referencedColumnName = "domain_id")
    }, inverseJoinColumns = {
            @JoinColumn(name = "child", referencedColumnName = "domain_id")
    })
    private Set<Domain> operators = new HashSet<>();

    @ManyToOne(optional = false, fetch = FetchType.EAGER)
    private Country country;

    public Domain() {}
        ... setters/getters
    }
4

1 回答 1

17

正如您在HQL 参考中所见，[not] in谓词仅适用于单值表达式。

您将不得不使用如下查询：

private static final String FIND_AVAILABLE_OPERATORS = "SELECT d FROM Domain as d LEFT OUTER JOIN d.operators as o WHERE d.type = :type AND o.domainID not in (:operators)";

List<Long>然后，您可以仅使用domain.getOperators()ID构建一个并在setParameterList()方法中使用它。

于 2013-08-12T21:04:38.173 回答