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Message-ID: <8f985b960604220516v5cfb70afqefb11c1dd4a5d885@mail.gmail.com>
Date: Sat, 22 Apr 2006 08:16:26 -0400
From: "Mike Kienenberger" <mkienenb@gmail.com>
To: cayenne-user@incubator.apache.org
Subject: Re: does Cayenne creates objects by hisself?
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References: 
 <570FE5C299B4CC4587C95EF5680619C1867DD6@FNHH-SVMEXDB003.Freenet-AG.de>
	 <57E6EEB0-BA45-46CD-9341-2FDDF51D1156@objectstyle.org>
	 <006f01c66480$b7323430$14b2a8c0@PC>
	 <45B7A54B-6F3D-4918-BAB5-2C8F711D3194@pfrog.com>
	 <76A40C7C-14CD-447B-ACCA-48771D909181@objectstyle.org>
	 <000f01c665f0$5c751050$14b2a8c0@PC>
	 <002801c665fe$8991f360$14b2a8c0@PC>
	 <8f985b960604220457i7d71feb7qd554736598e9d0ea@mail.gmail.com>
	 <004101c66605$86259f40$14b2a8c0@PC>

setUser() or addToVisitorList() are standard cgen-created wrapper
methods which call setToOneTarget() or  addToManyTarget().   They
provide you with type-checking.   Also, in theory, if you ever had to
migrate away from Cayenne (undoubtably due to some political decision
rather than a technical one (-: ), it's easier to write code-generated
wrapper methods than to replace code that calls Cayenne classes
directly in your application classes.

    public void setDependentIndividual(SecIndividual dependentIndividual) {
        setToOneTarget("dependentIndividual",
(com.gvea.admindb.entity.cayenne.SecIndividual)dependentIndividual,
true);
    }

    public void addToParentRoleList(SecGroup obj) {
        addToManyTarget("parentRoleList",
(com.gvea.admindb.entity.cayenne.SecGroup)obj, true);
    }


On 4/22/06, WONDER <mmmmmmmmm53@web.de> wrote:
> Ok. thx
>
> ps: why do you use setUser() or addToVisitorList() methods?
> Is it not better to use setToOneTarget() or  addToManyTarget()? I thought
> this will saves you to create the inverse relationship!
>
>
> peaSakoe
> ----- Original Message -----
> From: "Mike Kienenberger" <mkienenb@gmail.com>
> To: <cayenne-user@incubator.apache.org>
> Sent: Saturday, April 22, 2006 1:57 PM
> Subject: Re: does Cayenne creates objects by hisself?
>
>
> No, you'd have to associate the visitor with a particular user
> somehow.   By default the relationship will be null.
>
> visitor.setUser(user)
>
> or
>
> user.addToVisitorList(visitor)
>
>
>
> On 4/22/06, WONDER <mmmmmmmmm53@web.de> wrote:
> > Hi,
> >
> > I have the folloging situation.
> >
> > Entity "User"  has relation toMany "Visitor" its name is visitors.
> >
> > Usually if I "Fetch" the object Visitor from DB and then call
> >
> > visitor.user()
> >
> > Cayenne fetches the object User from the DB automatically.
> >
> >
> > Now, creating a Visitor object.
> >
> > Visitor visitor =3D new Visitor();
> >
> > and calling
> >
> > visitor.user()
> >
> > will Cayenne here creates the object User automatically, or I have to d=
o
> it by myself?
> >
> > Thanks.
> >
>
>