jpa - NamedQuery selectively define attributes -

i have namedquery in entity class defined

@namedquery(name = "emp.findall",  query = " select new test.entity.emp(o.empno, o.salary, o.project) emp o ")  

constructor

public emp(string empno, string salary, project project) {         this.empno = empno;         this.salary=  salary;         this.project = project;         }   

and generated sql is

select t0.emp_no, t0.salary, t1.project_id, t1.project_name, t1.project_desc emp t0, projects t1 (t1.project_id (+) = t0.project_id) 

in namedquery how selectively declare projectid , projectname instead of attributes project class? wouldn't display attributes of project class in namedquery.

how can achieve this?

update 1

public emp(string empno, string salary, long projectid, string projectname) {         project pr = new project();         this.empno = empno;         this.salary=  salary;         pr.setprojectid = projectid;         pr.setprojectname = projectname;         } 

try (and update constructor accordingly)

@namedquery(name = "emp.findall",  query = " select new test.entity.emp(o.empno, o.salary, p.projectid, p.projectname) emp o inner join o.project p ") 

constructor this

public emp(string empno, string salary, long projectid, string projectname) {     this.empno = empno;     this.salary=  salary;     project pr = new project();     pr.setprojectid(projectid);     pr.setprojectname(projectname);      this.project = pr; }