[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1283) ScrollableResults JoinFetch don't set child collection correctly after the second parent object

[Tim Downey (JIRA)]

    [ https://hibernate.onjira.com/browse/HHH-1283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=45568#comment-45568 ] 

Tim Downey commented on HHH-1283:
---------------------------------

I agree with Frans...we've been applying and using the patch for a number of years with no side effects.

> ScrollableResults JoinFetch don't set child collection correctly　after the second parent object
> -----------------------------------------------------------------------------------------------
>
>                 Key: HHH-1283
>                 URL: https://hibernate.onjira.com/browse/HHH-1283
>             Project: Hibernate ORM
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.1
>         Environment:  Hibernate 3.1
> Oracle10gR2
> Oracle JDBC Driver 10.2.0.1.0
> Sun JDK 1.5.0_06
> Spring 1.2.6
>            Reporter: Masahiro Hirashima
>         Attachments: fetch-scroll-collection-3.5.4.patch, ScrollableCollectionFetchingTest.java, ScrollableResults.zip
>
>
> ScrollableResults JoinFetch set child collection correctly at first parent object.
> but after the second parent object, It set only the first  element of a child collection.
> I made the following tables.
> CREATE TABLE owners (
>     id         NUMBER(36, 0) NOT NULL PRIMARY KEY,
>     first_name VARCHAR(30),
>     last_name  VARCHAR(30),
>     address    VARCHAR(255),
>     city       VARCHAR(80),
>     telephone  VARCHAR(20),
>     version    NUMBER(36, 0) DEFAULT 0
> );
> CREATE TABLE types (
>     id      NUMBER(36, 0) NOT NULL PRIMARY KEY,
>     name    VARCHAR(80),
>     version NUMBER(36, 0) DEFAULT 0
> );
> CREATE TABLE pets (
>     id         NUMBER(36, 0) NOT NULL PRIMARY KEY,
>     name       VARCHAR(30),
>     birth_date DATE,
>     type_id    NUMBER(36, 0),
>     owner_id   NUMBER(36, 0),
>     version    NUMBER(36, 0) DEFAULT 0
> );
> and inserted the following data.
> INSERT INTO owners VALUES (1,  'Betty',   'Davis',     '638 Cardinal Ave.',     'Sun Prairie', '6085551749', 0);
> INSERT INTO owners VALUES (2,  'Eduardo', 'Rodriquez', '2693 Commerce St.',     'McFarland',   '6085558763', 0);
> INSERT INTO pets VALUES (1,  'Leo',      '2000-09-07', 1,  1, 0);
> INSERT INTO pets VALUES (2,  'Basil',    '2002-08-06', 2,  1, 0);
> INSERT INTO pets VALUES (3,  'Rosy',     '2001-04-17', 3,  2, 0);
> INSERT INTO pets VALUES (4,  'Jewel',    '2000-03-07', 4,  2, 0);
> INSERT INTO pets VALUES (5,  'Iggy',     '2000-11-30', 5,  2, 0);
> INSERT INTO types VALUES (1, 'cat', 0);
> INSERT INTO types VALUES (2, 'dog', 0);
> INSERT INTO types VALUES (3, 'lizard', 0);
> INSERT INTO types VALUES (4, 'snake', 0);
> INSERT INTO types VALUES (5, 'bird', 0);
> and I execute following code.
> String hqlJoinFetchTest = 
>     "from Owner owner " +
>     "left outer join fetch owner.pets as pets " +
>     "left outer join fetch pets.type " +
>     "order by owner.firstName, owner.lastName";
> Query query = session.createQuery(hqlJoinFetchTest);
> ScrollableResults cursor = query.scroll();
> while ( cursor.next() ) {
>     Owner owner = (Owner)cursor.get(0);
>     System.out.println(owner);
> }
> result  of this code is following.
> petclinic.domain.Owner at 15d616e[id=1,version=0,firstName=Betty,lastName=Davis,
>   petclinic.domain.Pet at 136d9d8[id=2,version=0,name=Basil,birthDate=2002-08-06,
>     petclinic.domain.PetType at 1be2893[id=2,version=0,name=dog]
>   petclinic.domain.Pet at 14a75bb[id=1,version=0,name=Leo,birthDate=2000-09-07,
>     petclinic.domain.PetType at 17779e3[id=1,version=0,name=cat]
> petclinic.domain.Owner at e3570c[id=2,version=0,firstName=Eduardo,lastName=Rodriquez
>   petclinic.domain.Pet at 167e3a5[id=4,version=0,name=Jewel,birthDate=2000-03-07,
>     petclinic.domain.PetType at 1926e90[id=4,version=0,name=snake]
> First owner object set collection collectly.
> but second owner object don't set second pet object(id=5) and third pet object(id=6).

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