on constructWriterManager  
  return(createManager(#writer_manager, getClassVariable("writer.manager.class")))
end

on deconstructWriterManager  
  return(removeManager(#writer_manager))
end

on getWriterManager  
  tMgr = getObjectManager()
  if not tMgr.managerExists(#writer_manager) then
    return(constructWriterManager())
  end if
  return(tMgr.getManager(#writer_manager))
end

on createWriter tID, tMetrics 
  return(getWriterManager().create(tID, tMetrics))
end

on removeWriter tID 
  return(getWriterManager().Remove(tID))
end

on getWriter tID, tDefault 
  return(getWriterManager().GET(tID, tDefault))
end

on writerExists tID 
  return(getWriterManager().exists(tID))
end

on printWriters  
  return(getWriterManager().print())
end

on handlers  
  return([])
end