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From "Andrus Adamchik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAY-1796) ROP: All entity's to-many relationships getting faulted from database when using it as a parameter in qualifier expression.
Date Fri, 17 Jan 2014 11:13:19 GMT

    [ https://issues.apache.org/jira/browse/CAY-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13874680#comment-13874680
] 

Andrus Adamchik commented on CAY-1796:
--------------------------------------

[~olegart] : yeah, I'd keep this check around for now. You may add a comment in the code that
it is unlikely to happen though. We may change our minds later. 

> 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: 3.1B3
>
>         Attachments: cay1796.patch, cay1796_2.patch, cay1796_3.patch, cay1796test.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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