Rene Brun wrote:
>
> Hi Manuel,
> Your proposal is pretty simple to implement.
> If no objections or other proposals, I will add the feature
> in the next version.
>
> Rene Brun
>
Hi Rene,
Fine with me, but instead of the character '-' I would suggest to
use '&' or something like that.
The reason for this is that it is very likely that people already
used '//---' or something like this to denote comment fields.
Cheers,
Nick.
> Manuel Sanchez wrote:
> >
> > Hello Rooters,
> >
> > I would like to ask your opinion on a new "automatic split" feature,
> > the idea is as simple as having the posibilty to mark some data members
> > in a class so they won't be processed by the automatic split algorithm;
> > that is, the responsability to create the appropiate branches for those
> > members is left to the user. For instance, it coud be something like:
> > 'if the comment field of a data members starts with '-' then it won't be
> > processed by automatic split'.
> >
> > This would be different from marking that data member as not
> > persistent (using '!' as the first character in the comment field) in
> > the sense that the particular data member is persistent (it is stored
> > when the automatically generated Streamer() method is used) but the
> > responsability to generate the branches (in split mode) is left to the
> > user.
> >
> > This change would make easier to implement automatic split
> > strategies different from the default one.
> >
> > I think the changes in the code are as simple as adding one single
> > line to TTree::Branch() and TBranchObject::SetAddress() ( is this right?
> > )
> >
> > There are at least two workarounds (i'm using one of them):
> >
> > 1.- Mark the data member as non-persistent (using '!') and then
> > generate the Streamer function by hand
> >
> > 2.- Use the '-' in the comment field and use different Branch() and
> > SetAddress() methods from those which come with Root. (as external
> > functions or inheriting new classes from TTree and TBranchObject ...)
> >
> > 3.- Any more?
> >
> > Thanks for your attention,
> > Manuel.
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