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 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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