Vito Lipari's questions

我有一个带有实体@Transient 字段的实体，当我运行查询时出现错误。

查询与实体瞬时字段有连接

@Entity
@Table(name = "OTHER")
public class OtherEntity implements Serializable {
    @Id
    private Long id
   
    @Column( name = "code" )
    private String code;
}

@Entity
@Table(name = "MARKER")
public class MarkerEntity implements Serializable {
    @Id
    private Long id
    
    @Column(name = "OTHER_FIELD")
    private Long otherId;

    @Transient
    private OtherEntity other;

    public MarkerEntity(Long otherId, OtherEntity other) {
        this.otherId = otherId;
        this.other = other;
    }
}

这是 jpa 查询

@Query("SELECT " +
  "new MarkerEntity(" +
  "  o.id, " +
  "  new OtherEntity(o.id, o.code)" +
  ") m " +
  "JOIN OtherEntity o")
public List<MarkerEntity> entities(@Param("id") Long id)