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Re: Adapter from Genfit to Pnd objects checked in [message #8851 is a reply to message #8848]

Thu, 11 June 2009 19:52

Sebastian Neubert
Messages: 282
Registered: March 2006
Location: Munich

first-grade participant

From: *adsl.alicedsl.de

Hi Stefano!

What you describe is a problem with the ownership of the object that is pointed to. When this object is living in a different branch, possibly in a different file then using standard pointers does indeed not work. One could use TRef but I do not recommend it. I have not made good experience with that.

Anyhow the situation we are having here is different: The Parameter object clearly is owned by the PndTrack object. This case can be handled by ROOT without any problem. You can even define a TClonesArray INSIDE your object to store several objects (See the Event class example that comes with ROOT). I do this all the time. It works well.

The only thing that you should care about in such a situation is the split level of the branch. I have good experiences with NOT allowing root to split such a branch.

Cheers! Sebastian.

Sebastian Neubert
Technische Universität München
Department Physik E18
sneubert@e18.physik.tu-muenchen.de
tel: +49-8928912592

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[Message index]

		Adapter from Genfit to Pnd objects checked in By: Anonymous Poster on Thu, 04 June 2009 19:58
		Re: Adapter from Genfit to Pnd objects checked in By: Tobias Stockmanns on Fri, 05 June 2009 09:13
		Re: Adapter from Genfit to Pnd objects checked in By: Anonymous Poster on Fri, 05 June 2009 09:40
		Re: Adapter from Genfit to Pnd objects checked in By: Anonymous Poster on Thu, 11 June 2009 09:57
		Re: Adapter from Genfit to Pnd objects checked in By: Ralf Kliemt on Thu, 11 June 2009 11:07
		Re: Adapter from Genfit to Pnd objects checked in By: Anonymous Poster on Thu, 11 June 2009 11:27
		Re: Adapter from Genfit to Pnd objects checked in By: Ralf Kliemt on Thu, 11 June 2009 11:54
		Re: Adapter from Genfit to Pnd objects checked in By: StefanoSpataro on Thu, 11 June 2009 13:46
		Re: Adapter from Genfit to Pnd objects checked in By: Sebastian Neubert on Thu, 11 June 2009 19:52
		Re: Adapter from Genfit to Pnd objects checked in By: Anonymous Poster on Thu, 11 June 2009 20:17

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