ConfigurableColumnExampleTool.cxx File Reference

#include <ColumnarExampleTools/ConfigurableColumnExampleTool.h>

Include dependency graph for ConfigurableColumnExampleTool.cxx:

Go to the source code of this file.

Functions
namespace	ADD_CMODE (columnar)

Function Documentation

ADD_CMODE()

namespace ADD_CMODE

(

columnar

)

Author

Nils Krumnack

Definition at line 1 of file ConfigurableColumnExampleTool.cxx.

{
  ConfigurableColumnExampleTool ::
  ConfigurableColumnExampleTool (const std::string& name)
    : AsgTool (name)
  {}
 
 
 
  StatusCode ConfigurableColumnExampleTool ::
  initialize ()
  {
    if (m_ptVar.empty())
    {
      ATH_MSG_ERROR ("no pt variable specified");
      return StatusCode::FAILURE;
    }
    // set the accessor for the pt variable the user configured
    resetAccessor (ptAcc, *this, m_ptVar.value());
 
    // give the base class a chance to initialize the column accessor
    // backends
    ANA_CHECK (initializeColumns());
    return StatusCode::SUCCESS;
  }
 
 
 
  void ConfigurableColumnExampleTool ::
  callEvents (columnar::EventContextRange events) const
  {
    // loop over all events and particles.  note that this is
    // deliberately looping by value, as the ID classes are very small
    // and can be copied cheaply.  this could have also been written as
    // a single loop over all particles in the event range, but I chose
    // to split it up into two loops as most tools will need to do some
    // per-event things, e.g. retrieve `EventInfo`.
    for (columnar::EventContextId event : events)
    {
      for (columnar::ParticleId particle : particlesHandle(event))
      {
        selectionDec(particle) = (ptAcc(particle) > m_ptCut.value());
      }
    }
  }
}