The head node of a RDF computation graph.
Encapsulates the columns defined by the user.
std::shared_ptr< GraphDrawing::GraphNode > GetGraph()
void ClearValueReaders(unsigned int slot) final
void FinalizeSlot(unsigned int) final
void Run(unsigned int slot, Long64_t entry) final
void * PartialUpdate(unsigned int slot) final
This method is invoked to update a partial result during the event loop, right before passing the res...
void InitSlot(TTreeReader *r, unsigned int slot) final
std::unique_ptr< RActionBase > fConcreteAction
void TriggerChildrenCount() final
bool HasRun() const final
A simple, robust and fast interface to read values from ROOT columnar datasets such as TTree,...