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From "Oleg Artyukevich (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CAY-1796) ROP: All entity's to-many relationships getting faulted from database when using it as a parameter in qualifier expression.
Date Wed, 29 Jan 2014 14:08:09 GMT

     [ https://issues.apache.org/jira/browse/CAY-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Oleg Artyukevich updated CAY-1796:
----------------------------------

    Attachment: cay1796test_v2.1.patch

Hi, Andrus. 
Send patch for test file. Add ordering in select operations. It's working clearly with h2,
derby and other dbs now.

> ROP: All entity's to-many relationships getting faulted from database when using it as
a parameter in qualifier expression.
> ---------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CAY-1796
>                 URL: https://issues.apache.org/jira/browse/CAY-1796
>             Project: Cayenne
>          Issue Type: Bug
>          Components: ROP
>    Affects Versions: 3.1B2
>            Reporter: Dzmitry Kazimirchyk
>             Fix For: 3.2.M2
>
>         Attachments: cay1796.patch, cay1796_2.patch, cay1796_3.patch, cay1796_v4.patch,
cay1796test.patch, cay1796test_v2.1.patch, cay1796test_v2.patch
>
>
> If entity is used as a parameter in qualifier expression all its unfaulted to-many relationships
are faulted prior to actual query sent to server. For example:
> Expression exp = ExpressionFactory.matchExp(Painting.ARTIST_PROPERTY, artist);
> context.performQuery(new SelectQuery(Painting.class, exp));
> Before actual query will be sent to server all artist's to-many relationships will be
faulted. What I see is that in the process of query serialization on client side PersistentObjectList.size()
is invoked which triggers relationships' faulting from database.



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