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From "Lars Vogel" <lars.vo...@googlemail.com>
Subject Re: Annotation of Arraylist<String> myList;
Date Mon, 21 Apr 2008 06:09:31 GMT
Hi Catatina,

thank you. Best regards, Lars


2008/4/15, catalina wei <catalina.wei@gmail.com>:
>
> Hi Lars,
> See my comment below
>
>
> On 4/13/08, Lars Vogel <lars.vogel@googlemail.com> wrote:
> >
> > Hi Catalina,
> >
> > is it correct that this will be serialized as a BLOB?
>
>
>
> I think it means that instances of datamodel.impl.Person when serialized,
> the field nickNameList will be serialized as a BLOB.
>
>
>
> >
> > I receive the message: 1469  people  WARN   [main] openjpa.MetaData -
> > OpenJPA cannot map field "datamodel.impl.Person.nickNameList"
> efficiently.
> > It is of an unsupported type. The field value will be serialized to a
> BLOB
> > by default.
> >
> > You are pointing to a directory which I do not have (I downloaded
> > apache-openjpa-1.0.2). Can you please tell me how I can get this
> > directory?
> >
>
>
> OpenJPA source code can be extracted from svn repository location:
> http://svn.apache.org/repos/asf/openjpa
> The release you are interested in is under branch 1.0.x.
> The samples are under openjpa-persistence-jdbc/src/test folder.
>
>
> >
> > Best regards, Lars
> >
> >
> > 2008/4/13, catalina wei <catalina.wei@gmail.com>:
> > >
> >
> > > Hi Lars,
> > > Want to correct my previous email.
> > > OpenJPA does have this feature implemented already, an example can be
> > > found
> > > in
> > >
> > >
> >
> org.apache.openjpa.persistence.annotations.common.apps.annotApp.annotype.OrderByEntity:
> > >     @PersistentCollection
> > >     @OrderBy
> > >     private List<String> strings = new ArrayList();
> > >
> > > If you search for "@PersistentCollection" under
> > > openjpa-persistence-jdbc/src/test/java folder,
> > > you will get lots of examples.
> > >
> > >
> > > Catalina
> > >
> > >
> > > On 4/12/08, Janko Heilgeist <janko.heilgeist@rzg.mpg.de> wrote:
> > > >
> > > > catalina wei wrote:
> > > >
> > > > > Hi Lars,
> > > > > The feature you are looking for has been addressed in the draft
> > > of  JPA
> > > > > 2.0
> > > > > spec Section 2.1.5 Collections of Embeddable Classes and Basic
> > Types.
> > > > > I don't think we have this feature implemented in the current
> > OpenJPA
> > > > > releases.
> > > > >
> > > > > Catalina
> > > > >
> > > > > On 4/11/08, Lars Vogel <lars.vogel@googlemail.com> wrote:
> > > > >
> > > > > > Hello,
> > > > > >
> > > > > > I would like to persist a object which contains a list of
> > primitives
> > > > > > (Strings). It is possible or can JPA only store real objects?
> > > > > >
> > > > > > I tried it an received an error.
> > > > > >
> > > > > > Best regards, Lars
> > > > > >
> > > > > >
> > > > >
> > > > Hi,
> > > >
> > > > what about @org.apache.openjpa.persistence.PersistentCollection?
> I've
> > > > never used it myself, but someone mentioned this feature a few days
> > ago
> > > on
> > > > this mailinglist.
> > > >
> > > > @Entity
> > > > public MyObject {
> > > >
> > > > @PersistentCollection
> > > > private Collection<String> users;
> > > >
> > > > }
> > > >
> > > > It is not standard-JPA, though.
> > > >
> > > > Janko
> > > >
> > > >
> > >
> >
>

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