Question

我一直在尝试实现休眠过滤器，但是似乎得到了一些奇怪的结果。

当我得到一个列表时，当我移到下一个对象时，Ship Entity的第一个结果似乎已经获得了正确的BuildFormula。

1st：itemType =发货第二名：itemType =建筑物

Session session = entityManager.unwrap(Session.class);

session.enableFilter(BY_USER_ID_PLANET_ID_STAR_ID)
.setParameter(USER_ID, UserInfoHolder.getLocation().getUserId())
.setParameter(PLANET_ID, UserInfoHolder.getLocation().getPlanetId())
.setParameter(STAR_ID, UserInfoHolder.getLocation().getStarId());

session.enableFilter(TYPE).setParameter("itemType", SHIP);

List<Ship> buildingList = session.createQuery("FROM Ship", Ship.class).getResultList();
return buildingList.stream().map(this::convertToVO).collect(Collectors.toList());

主要实体

@Data
@Table
@Entity
public class Ship {

    public static final String SHIP = "ship";

    @Id
    private Integer id;

    private String name;

    private String description;

    @OneToMany(cascade = CascadeType.ALL)
    @JoinColumn(name = "itemId", referencedColumnName="id", insertable = false, updatable = false)
    @Filter(name = "byType", condition = "item_type = :itemType")
    private List<BuildFormulas> buildFormulas;


    @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
    @JoinColumn(name = "shipId", insertable = false, updatable = false)
    @Filter(name = "byUserIdPlanetIdStarId")
    private List<ShipToUser> shipToUser;

}

还有BuildFormulas类

@Data
@Entity
@FilterDef(
        name = "byType",
        defaultCondition = "item_type = :itemType",
        parameters = {
                @ParamDef(name = "itemType", type = "string")
        }
)
public class BuildFormulas {

    @Id
    private Integer itemId;

    private String metalCost;

    private String crystalCost;

    private String deuteriumCost;

    private String energyCost;

    private String speed;

    private String itemType;
}

还有ShipToUser

@Data
@Entity
@FilterDef(
        name = "byUserIdPlanetIdStarId",
        defaultCondition = "user_id = :userId AND planet_id = :planetId AND star_id = :starId",
        parameters = {
                @ParamDef(name = "userId", type = "int"),
                @ParamDef(name = "planetId", type = "string"),
                @ParamDef(name = "starId", type = "string")
        }
)
public class ShipToUser {

    @EmbeddedId
    private ShipToUserKey shipToUserKey;

    private int amount;

}

为解开这个谜团提供任何帮助。

休眠过滤器

0 个答案: