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我有一个Instrument包含这些字段的实体：

@OneToMany(fetch = FetchType.EAGER, cascade = { CascadeType.PERSIST, CascadeType.MERGE })
@JoinColumn(referencedColumnName = "instrumentId", nullable = false)
public Set<InstrumentSymbol> getSymbols() {
    return this.symbols;
}

@Column
@JsonProperty("statusCode")
public Integer getStatusCode() {
    return statusCode;
}

InstrumentSymbol现在在数据库中有一个名为symbold_instrumentIdHibernate 自动创建的列，但没有与之关联的属性。我怎样才能找到所有InstrumentSymbolwhere statusCodeis 1？

我试过了

    CriteriaBuilder builder = session.getCriteriaBuilder();
    CriteriaQuery<InstrumentSymbol> query = builder.createQuery(InstrumentSymbol.class);
    Root<InstrumentSymbol> rootSymbol = query.from(InstrumentSymbol.class);

    Subquery<Long> subquery = query.subquery(Long.class);
    Root<Instrument> rootInstrument = subquery.from(Instrument.class);
    subquery.select(rootInstrument.get(Instrument_.instrumentId));
    subquery.where(builder.equal(rootInstrument.get(Instrument_.statusCode), 1));

    query.where(builder.in(rootSymbol.get("symbols_instrumentId")).in(subquery)); // <--- Fails here

但这失败了

java.lang.IllegalArgumentException: Unable to locate Attribute  with the the given name [symbols_instrumentId] on this ManagedType [....InstrumentSymbol]

然后我尝试将自定义字段添加到我的@StaticMetamodel：

public static volatile SingularAttribute<InstrumentSymbol, Long> symbols_instrumentId; // NOSONAR Hibernate 5 requires this

但不幸的是，Hibernate 忽略了它：

    // Hibernate fills these fields for me
    assertEquals("Instrument#instrumentId(BASIC)", Instrument_.instrumentId.toString());
    assertEquals("InstrumentSymbol#instrumentSymbolId(BASIC)", InstrumentSymbol_.instrumentSymbolId.toString());
    // But not this...
    assertEquals(null, InstrumentSymbol_.symbols_instrumentId);

如何创建有效的查询？

作为参考，这是以下的静态元数据InstrumentSymbol：

@StaticMetamodel(InstrumentSymbol.class)
public class InstrumentSymbol_ { // NOSONAR Hibernate 5 requires this
    public static volatile SingularAttribute<InstrumentSymbol, String> externalInstrumentSymbolId; // NOSONAR Hibernate 5 requires this
    public static volatile SingularAttribute<InstrumentSymbol, Long> instrumentSymbolId; // NOSONAR Hibernate 5 requires this
    public static volatile SingularAttribute<InstrumentSymbol, String> symbol; // NOSONAR Hibernate 5 requires this
    public static volatile SingularAttribute<InstrumentSymbol, String> symbolType; // NOSONAR Hibernate 5 requires this
}

（没有 FK 的列Instrument）。这是自动生成的 DDL：

create table InstrumentSymbol (
    instrumentSymbolId int8 not null,
    externalInstrumentSymbolId varchar(50) not null,
    symbol varchar(40) not null,
    symbolType varchar(20) not null,
    symbols_instrumentId int8 not null,  /* Additional column, not visible from Java */
    primary key (instrumentSymbolId)
);

alter table InstrumentSymbol 
   add constraint FKcb138lkaiji2wh11275m77byk 
   foreign key (symbols_instrumentId) 
   references Instrument;
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