HCategory & TClonesArray
HCategory ? generalized TClonesArray
- Extra features
- Does not imply a linear internal structure
- This is left to the concrete implementation
- Ex: HSplitCategory puts data in an array of TClonesArray
- Provide matrix-like random access
- To access one particular object one specifies sector number, module number, ...
- May decide how they are split to build a ROOT tree
- That is, the final branch layout of the output tree depends on the chosen categories