Add new files to the list of files to be analyzed.
 The filename may use wildcards to add multiple files all at once.
 returns the actual number of files added or zero.
 Actually adds files by repeated calls to AddFile().

 Add a single file to the list of files to be analyzed.
 Returns a negative number if the files could not be opened.
 On first file opened, must initialize the reader.

 Add a single file to the list of epic files to be analyzed.
 Returns a negative number if the files could not be opened.
 On first file opened, must initialize the reader.

 Read the next event and make the contends available.

 Returns the number of files in the current list of files to be analyzed.

 Main reset of class. Clean up and return to reading the very first event.

 Read a specific event from the run with runnum.
 THIS IS EXPENSIVE! We need to SEARCH for that specific event. 
 Usually you want to use Next() or GetEntry() which are both quite a bit faster.

 Returns the event number of the event actually read. Since it is possible the 
 event is not found

 Specify runnum if you want to search for a runnum other than the current one.

 This is the "generic" version you may which to override.
 This is currently the stupid way to do this, should be a binary search.
 It is the user's responsibility to load files with different runnumbers in 
 sequential order.

 Find a specific event in the list of events. The n-th event is returned,
 not the event with event_number = entry! For that use the ReadEvent() method.

 Return total number of entries in the chain.

 Fast way to return the number of entries in the chain by regurgitating a
 stored value. This value may not be accurate. (See TChain::GetEntriesFast )

Returns the EPIC value associated with fName

 Browse the class with Browser b.

 Same as the TChain::Draw command, allows you to make instant plots of variables in the 
 files. This is harder to implement and so not all readers will support this!

 Return a TObjArray containing a list of the currently attached files. See TChain::GetFiles()

 Return the number of trees attached. See TChain::GetNtrees()

 Return the number of the current tree being read. See TChain::GetTreeNum()

 Routine that will call the Notify set by SetNotify.

 This cannot be implemented here, it must be implemented in the
 actual reader.  
 The argument must be a class that is derived from TObject and has
 a sensible Notify() method.
 The SetNotify call will set a hook to call the Notify() of your 
 class whenever a new file is opened. I.e. the first file, or when
 you go from the first to the second, etc. This is useful for 
 initializations that depend on the file being there already, and 
 it is useful for detecting runnumber changes.

 Get the number of particles in this event. Calls GetNRows("EVNT")

 Return the momentum 3 vector for a particle at index indx, for this event.

 Return the vertex 3 vector for a particle at index indx, for this event.

 Return the particle ID (SEB style) for the particle at index indx for this event.

 Return the charge of the particle at index indx for this event.

 Return the type of the reader that is implemented.

Return current EPIC

 Return the HEADER bank for the current event.

 Return the helicity of the current event: -1 or 1 for proper helicity, 0 for error.

 Return a pointer to the TChain. 
 If reader is not capable of returning a TChain, it will return NULL.

 Print to the screen a summary of the status for this event. Useful for debugging.

 Print to the screen a summary of the status for this event. Useful for debugging.

Print the position of current EPIC

 Return the number of rows for the bank with "bankname" for this event.

 Return a pointer to the ClasBank bank object with name "bankname" at row nrow.

 Return the current number of the event from the HEADER. I.e. the actual event number.

 Return the current run number of the event from the HEADER. 

 Return the current number of the event in the sequence, i.e. the n-th event number.