Mailing-List: contact user-help@cayenne.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cayenne.apache.org
Received-SPF: pass (athena.apache.org: domain of razumovsky.andrey@gmail.com
 designates 74.125.82.43 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:from:date:message-id:subject:to
         :content-type;
        b=hHwra/K//gsneF9EcYHlULCA8zi3/eEmY1WUfhPG5Sc16h40WBG+kyRHRXSHzUbhs2
         UIDrtLzqKPqhaVNgCBzo89gACMTa4M0JuIOUYiCObZD8PQoR3jWHNEsop9WoOMs1wDbX
         JiyNDizgksxs/fLF/ycBSBtVeNjCjgcP52E+U=
MIME-Version: 1.0
In-Reply-To: <70CF30D5-20D6-4576-AC98-6530722ADFF7@lindesay.co.nz>
References: <70CF30D5-20D6-4576-AC98-6530722ADFF7@lindesay.co.nz>
From: Andrey Razumovsky <razumovsky.andrey@gmail.com>
Date: Sun, 7 Feb 2010 13:40:04 +0300
Message-ID: <3219fff71002070240x5ed09d0q4c55bf46c8245f17@mail.gmail.com>
Subject: Re: ObjectIdQuery Question
To: user@cayenne.apache.org
Content-Type: multipart/alternative; boundary=0016e6d99a21e970be047f004f37

--0016e6d99a21e970be047f004f37
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

DataContext should be created via DataContext.createDataContext() if you're
using shared configuration (cayenne.xml in classpath). Although there could
be changes in 3.1 shapshot - I think Andrus i=D1=8B reworking something the=
re.
Also the simplest way to get DataObject for PK is Cayenne.objectForPk(...)
in 3.1 and DataObjectUtils.objectForPk(...) in 3.0

2010/2/7 Andrew Lindesay <apl@lindesay.co.nz>

> Hello;
>
> I am using 3.1 snapshot and am trying to do this in order to get an
> DataObject instance for the ObjectId which I have;
>
>        DataContext dc =3D new DataContext();
>        ObjectId xyzObjectId =3D xyzObjectIds.get(i);
>        XYZ xyz =3D (XYZ) dc.performQuery(new
> ObjectIdQuery(xyzObjectId)).get(0);
>
> I get an NPE here;
>
>
>  org.apache.cayenne.util.ObjectContextQueryAction.runQuery(ObjectContextQ=
ueryAction.java:335)
> at
> org.apache.cayenne.util.ObjectContextQueryAction.execute(ObjectContextQue=
ryAction.java:96)
> at
> org.apache.cayenne.access.DataContext.onQuery(DataContext.java:1049) at
>
> org.apache.cayenne.access.DataContext.performQuery(DataContext.java:1038)
>
> Which is this in code;
>
>        protected void runQuery()
>        { this.response =3D actingContext.getChannel().onQuery(actingConte=
xt,
> query); }
>
> The problem is that there is no channel on the context.
>
> Am I using the API correctly?
>
> Regards;
>
> ___
> Andrew Lindesay
> www.lindesay.co.nz
>
>


--=20
Andrey

--0016e6d99a21e970be047f004f37--