Question

我有一个SQL查询

select * from LEASINGPRODUCTGROUP lg join DFE_APPLICATION da ON lg.APPLICATIONID = da.id where lg.applicationid in (1,62);

DFE_APPLICATION是我已经决定的实体，因为我只需要该表中的ID，因此在我的命名查询中，我决定使用私有列表应用程序；如下所述

public class LeasingProductGroupOB extends BaseOB {

    @ElementCollection
    private List<Long> applications;

    @JoinTable(name = "LEASINGPRODUCTGROUPAPP", joinColumns = {
            @JoinColumn(name = "GROUPID", referencedColumnName = "ID", nullable = false) }, inverseJoinColumns = {
            @JoinColumn(name = "APPID", referencedColumnName = "ID", nullable = false) })
    @ManyToMany(fetch = FetchType.LAZY)
    public List<Long> getApplications() {
        return applications;
    }

    public void setApplications(List<Long> applications) {
        this.applications = applications;
    }
} 

Now i want to perform the sql query as above only now i dont have the whole entity, Im not sure exactly how to go about it.
My idea

first leasingproductgroup has
id, name, applicationid on the table 

dfe_application has
ID, EMvalue, name

The manytomany relationship has a table 
LEASINGPRODUCTGROUPAPP with ids and fk from dfe_application and leasingproductgroup


Using named query i got stopped here as am not sure how to continue since in the class i have list<Long> of applications and not the whole entity.

 @NamedQuery(name = "LeasingProductGroupOB.findActiveByApp", query = "SELECT p FROM LeasingProductGroupOB p join fetch p.applications a  p.applicationId = a. "

关于如何继续的任何建议？

在命名查询中将@ElementCollections与join语句一起使用

0 个答案: