[ROOT] TChain: .root files only?

From: Pasha Murat (630)840-8237@169G ((630)840-8237@169G)
Date: Wed Jun 06 2001 - 20:40:20 MEST


Dear ROOT'ers,

I'd like to reiterate on an issue raised some time earlier:
right now it is only possible to combine into TChain files which have 
extention ".root", otherwise one gets the following diagnostics:

    Error("AddFile","a chain element name must contain the string .root");

We are thinking about storing the ROOT files with the trees in there in the 
data handling system and writing them to tape. An immediate consequence of this 
is that freedom of choosing the file names and extentions at random goes away 
and we no longer can have files with their extentions being ".root". 
At the same time we'd like to continue chaining the trees stored in the files. 
So let me ask the question about what is the limitation which requires chained 
files to have predefined extention (.root) once again,

					thanks a lot, Pasha



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