Re: [Wicket-user] Cyclic parent/child relationship
On Mon, 11 Jun 2007, James McLaughlin wrote:
> class MyBrainDamagedModel implements IModel
...
> public Object getObject() {
> return this;
> }
> }
>
> Turns out this an excellent way to exercise your cpu. I don't know if
> there is anything wicket can do to prevent the hapless user the
> shame and frustration of falling into such a sandtrap. Maybe a note in
Yep, generic models, once that feature of the old 2.0 will be
resurrected in some more fortunate version.
- Timo
--
Timo Rantalaiho
Reaktor Innovations Oyhttp://www.ri.fi/ >
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Re: [Wicket-user] Cyclic parent/child relationship
Speaking of sanity, awhile back, I was guilty of this fine piece of
brain damage:
class MyBrainDamagedModel implements IModel
{
// some interesting members
// some interesting methods
public Object getObject() {
return this;
}
}
Turns out this an excellent way to exercise your cpu. I don't know if
there is anything wicket can do to prevent the hapless user the
shame and frustration of falling into such a sandtrap. Maybe a note in
the javadoc. Maybe this message will be enough. Maybe such users
should not be allowed near wicket in the first place :).
best,
jim
On 6/11/07, Nart Seine <[EMAIL PROTECTED]> wrote:
> Yeah agreed. I was just wondering if a sanity check is needed at that point
> in the code.
> Thanks.
>
>
> On 6/11/07, Alex Objelean < [EMAIL PROTECTED]> wrote:
> >
> > You just have to respect the hierarchy you have defined in the markup.
> >
> >
> > Nart Seine wrote:
> > >
> > > Hello,
> > >
> > > I made an innocent programming error that day by adding a Form as a
> child
> > > component of a TextField thats already the child of the Form. In that
> > > case,
> > > execution gets stuck in an infinite loop in Component.findParent(final
> > > Class
> > > c). I still am only scratching the surface of wicket, but are there any
> > > cases when two component can be parents of each other, as in, is this
> the
> > > case with some component types? Could a check be added in the code to
> > > prevent adding a component, if the component being added is already the
> > > parent of 'this' component? Or should I just ensure I have enough
> caffeine
> > > in my system before I start putting together component hierarchies ? :)
> > >
> > > Thanks
> > >
> > >
> -
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> >
> > --
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> http://www.nabble.com/Cyclic-parent-child-relationship-tf3900804.html#a11058487
> > Sent from the Wicket - User mailing list archive at Nabble.com.
> >
> >
> >
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Re: [Wicket-user] Cyclic parent/child relationship
On 6/11/07, Nart Seine <[EMAIL PROTECTED]> wrote: > Yeah agreed. I was just wondering if a sanity check is needed at that point > in the code. > Thanks. It would be possible to build this in, but it would come at the price of increased processing overhead. Tbh, I'm not sure if the problem is common enough to justify this. Eelco - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Cyclic parent/child relationship
Yeah agreed. I was just wondering if a sanity check is needed at that point in the code. Thanks. On 6/11/07, Alex Objelean <[EMAIL PROTECTED]> wrote: You just have to respect the hierarchy you have defined in the markup. Nart Seine wrote: > > Hello, > > I made an innocent programming error that day by adding a Form as a child > component of a TextField thats already the child of the Form. In that > case, > execution gets stuck in an infinite loop in Component.findParent(final > Class > c). I still am only scratching the surface of wicket, but are there any > cases when two component can be parents of each other, as in, is this the > case with some component types? Could a check be added in the code to > prevent adding a component, if the component being added is already the > parent of 'this' component? Or should I just ensure I have enough caffeine > in my system before I start putting together component hierarchies ? :) > > Thanks > > - > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > ___ > Wicket-user mailing list > Wicket-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wicket-user > > -- View this message in context: http://www.nabble.com/Cyclic-parent-child-relationship-tf3900804.html#a11058487 Sent from the Wicket - User mailing list archive at Nabble.com. - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Cyclic parent/child relationship
You just have to respect the hierarchy you have defined in the markup. Nart Seine wrote: > > Hello, > > I made an innocent programming error that day by adding a Form as a child > component of a TextField thats already the child of the Form. In that > case, > execution gets stuck in an infinite loop in Component.findParent(final > Class > c). I still am only scratching the surface of wicket, but are there any > cases when two component can be parents of each other, as in, is this the > case with some component types? Could a check be added in the code to > prevent adding a component, if the component being added is already the > parent of 'this' component? Or should I just ensure I have enough caffeine > in my system before I start putting together component hierarchies ? :) > > Thanks > > - > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > ___ > Wicket-user mailing list > Wicket-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wicket-user > > -- View this message in context: http://www.nabble.com/Cyclic-parent-child-relationship-tf3900804.html#a11058487 Sent from the Wicket - User mailing list archive at Nabble.com. - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
