Hibernate@过滤器不工作在儿童与FetchType。懒惰

Question

我的问题是：当我对父实体（合同）执行查询时，在子实体（ContractHeader）上应用过滤器并使用FetchType。LAZY，LAZY规则应用正确，但当我尝试访问子列表（ContractHeader）时，过滤器不会应用于子对象，所有子对象都加载到列表中。有人能帮我回答这个问题吗？过滤器应与fetchtype一起使用。懒惰？

有人成功地实施了这样的事情吗？

Tks！

我拥有以下实体：

@Entity
@Table(name = "contract")
@FilterDefs ({
    @FilterDef(name = "calculatedFilter",       parameters = {@ParamDef(name = "calculated",        type = "java.lang.String"  )}),
    @FilterDef(name = "headerStatusFilter",     parameters = {@ParamDef(name = "headerStatus",      type = "java.lang.String"  )})
})
public class Contract {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "contract_id")
    private Long contractId;

    @OneToMany(mappedBy="contract",fetch = FetchType.LAZY, cascade = {CascadeType.ALL}, orphanRemoval=true)
    @Filters( {
        @Filter(name="calculatedFilter",        condition="calculated = :calculated"),
        @Filter(name="headerStatusFilter",      condition="header_status = :headerStatus")
    })
    @JsonManagedReference
    private List<ContractHeader> contractHeader;
}
@Entity
@Table(name = "contract_header")
@JsonIdentityInfo(generator=ObjectIdGenerators.PropertyGenerator.class, property="contractHeaderId", resolver=EntityIdResolver.class, scope = ContractHeader.class)
@Data
html" target="_blank">public class ContractHeader implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "contract_header_id")
    private Long contractHeaderId;

    @Column(name = "branch")
    private Integer branch;


    @Column(name = "calculated")
    private String calculated;

    @Column(name = "header_status")
    private String headerStatus;

    @ManyToOne(optional=false)
    @JoinColumn(name = "contract_id", updatable=false)
    @JsonBackReference
    private Contract contract;
}    

在调用查询之前，我已经启用了过滤器：

一场enableFilter（“calculatedFilter”）。setParameter（“计算的”，“S”）；一场enableFilter（“headerStatusFilter”）。setParameter（“headerStatus”，“A”）；

查询生成：

访问孩子之前：

select
    contract0_.contract_id as contract1_2_
from
    contract contract0_ 
where
    exists (
        select
            contracthe1_.contract_header_id 
        from
            contract_header contracthe1_ 
        where
            contract0_.contract_id=contracthe1_.contract_id 
            and contracthe1_.calculated = ? 
            and contracthe1_.header_status = ?

        )

访问孩子时：

select
    contracthe0_.contract_id as contrac28_6_0_,
    contracthe0_.contract_header_id as contract1_6_0_,
    contracthe0_.contract_header_id as contract1_6_1_,
    contracthe0_.calculated as calculat5_6_1_,
    contracthe0_.header_status as header_6_6_1_
from
    contract_header contracthe0_ 
where
    contracthe0_.contract_id=?

Answer 1

我发现了发生的事情，问题与我对@Transactional的注释位置有关。

问题解决了！