java - JPA/JPQL JOIN Subselect/Subquery -


i have trouble translate easy sql statement jpql, because of used subquery, not supported jpql.

can give me hint, how achieve same result jpql or jpa2 criteria api?

given (simplified fake data demonstrate problem):

create table person (id integer, name text); create table phone (id integer, person_id integer, type text, number text);  insert person values (1, "john"); insert person values (2, "mike"); insert person values (3, "paul"); insert person values (4, "walter");  insert phone values (1, 1, "mobile", "+49-123-11111"); insert phone values (2, 1, "home"  , "+49-123-22222"); insert phone values (3, 2, "work"  , "+49-123-33333"); insert phone values (4, 4, "mobile", "+49-123-44444");  -- select person , mobile number if possible -- query has translated jpql  select person.name, mobile.number person left join (   select * phone type = "mobile" ) mobile on person.id = mobile.person_id; 

expected result:

| name   | number        | |--------|---------------| | john   | +49-123-11111 | | mike   |               | | paul   |               | | walter | +49-123-44444 | 

java:

class person {     string name;     list<phone> phones; }  class phone {     string type;     string number; } 

jpql (not working expected :-( ):

select person.name, phone.number person person     left join person.phones phone     phone.type = "mobile" 

select person.name, phone.number     person person left join person.phones phone     on phone.type = 'mobile' 

you can replace on keyword hibernate specific with:

select person.name, phone.number     person person left join person.phones phone     phone.type = 'mobile' 

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