class AliMUONTreeManager: public TObject

 Default ctor

 Dtor

 Equivalent to tree.GetEvent(event) is NDEBUG is not defined,
 otherwise insure that selected branches have a non-zero address
 (the contrary indicating we'll get a memory leak when reading the
 tree).

 Show main branches status and address

 Adds a association (pattern,className) to the UserInfo() of tree
 It is mandatory to use this method in MakeBranches(), as this is the key
 to get an automatic container creation from a tree.

 Create a branch in the tree

 Set the address for one branch

 Object creation from tree, using
 the (pattern,className) pairs stored in the UserInfo() of TTree.

 Loop over tree branches and set their status if their name matches
 the pattern :
 - zero if branch address is null and
 - one otherwise
 This will avoid memory leak, if we set the address to only part
 of the branches before doing a tree.GetEvent(i)

 WARNING : this is a time consuming operation, as we loop over branches
 at least twice (one here, and the TTree::SetBranchStatus is itself
 a loop). So use only when necessary.

 Find out, using the TTree::UserInfo, the classname corresponding to
 pattern.
 If makeDefault=true and we cannot find the pattern in the UserInfo,
 we return DefaultClassName(pattern)

 For backward compatibility only. Decides, based on the tree name and a
 pattern, which store class should be used.