FilterSelector< ACollectorItem, ACollectionItem, AFilter > Class Template Reference

Selector to remove all weighted relations, where a definable Filter gives NaN as a result. More...

#include <FilterSelector.h>

Inheritance diagram for FilterSelector< ACollectorItem, ACollectionItem, AFilter >:

Public Types
using	WeightedRelationItem = WeightedRelation<ACollectorItem, const ACollectionItem>
	Shortcut class name for a weighted relation between a collector item and a collection item.
using	Super = Findlet<WeightedRelation<ACollectorItem, const ACollectionItem>>
	The parent class.
using	IOTypes
	Types that should be served to apply on invocation.
using	IOTypes
	Types that should be served to apply on invocation.
using	IOVectors
	Vector types that should be served to apply on invocation.
using	IOVectors
	Vector types that should be served to apply on invocation.

Public Member Functions
	FilterSelector ()
	Add the chosen filter as a process signal listener.
void	exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) override
	Expose the parameters of the filter.
void	apply (std::vector< WeightedRelationItem > &weightedRelations) override
	Main function of the class: calculate the filter result and remove all relations, where the filter returns NaN.
virtual std::string	getDescription ()
	Brief description of the purpose of the concrete findlet.
virtual std::string	getDescription ()
	Brief description of the purpose of the concrete findlet.
virtual void	apply (ToVector< AIOTypes > &... ioVectors)=0
	Main function executing the algorithm.
void	initialize () override
	Receive and dispatch signal before the start of the event processing.
void	beginRun () override
	Receive and dispatch signal for the beginning of a new run.
void	beginEvent () override
	Receive and dispatch signal for the start of a new event.
void	endRun () override
	Receive and dispatch signal for the end of the run.
void	terminate () override
	Receive and dispatch Signal for termination of the event processing.

Protected Types
using	ToVector
	Short hand for ToRangeImpl.
using	ToVector
	Short hand for ToRangeImpl.

Protected Member Functions
void	addProcessingSignalListener (ProcessingSignalListener *psl)
	Register a processing signal listener to be notified.
int	getNProcessingSignalListener ()
	Get the number of currently registered listeners.

Private Attributes
AFilter	m_filter
	The filter to use.
std::vector< ProcessingSignalListener * >	m_subordinaryProcessingSignalListeners
	References to subordinary signal processing listener contained in this findlet.
bool	m_initialized
	Flag to keep track whether initialization happened before.
bool	m_terminated
	Flag to keep track whether termination happened before.
std::string	m_initializedAs
	Name of the type during initialisation.

Detailed Description

template<class ACollectorItem, class ACollectionItem, class AFilter>
class Belle2::TrackFindingCDC::FilterSelector< ACollectorItem, ACollectionItem, AFilter >

Selector to remove all weighted relations, where a definable Filter gives NaN as a result.

Will also update all stored weights with the result of the filter. Please note that all other stored weights will be overridden!

Most likely, the full stack is used as follows:

• match two lists of elements (Collectors and Collections) resulting in a list of weighted relations among those
• select only some relations using a certain criteria (this is where the difference between Collector and Collections comes into place)
• add the found relations by absorbing the collection items into the collector items.

Please note that the CollectionItems are therefore const whereas the CollectorItems are not. All the passed WeightedRelations lists must be sorted.

Most of the provided selectors are built to match many collection items to one collector item.

Definition at line 45 of file FilterSelector.h.

Member Typedef Documentation

IOTypes [1/2]

using IOTypes

inherited

Types that should be served to apply on invocation.

Definition at line 30 of file Findlet.h.

IOTypes [2/2]

using IOTypes

inherited

Types that should be served to apply on invocation.

Definition at line 30 of file Findlet.h.

IOVectors [1/2]

using IOVectors

inherited

Vector types that should be served to apply on invocation.

Definition at line 53 of file Findlet.h.

IOVectors [2/2]

using IOVectors

inherited

Vector types that should be served to apply on invocation.

Definition at line 53 of file Findlet.h.

Super

template<class ACollectorItem, class ACollectionItem, class AFilter>

using Super = Findlet<WeightedRelation<ACollectorItem, const ACollectionItem>>

The parent class.

Definition at line 52 of file FilterSelector.h.

ToVector [1/2]

using ToVector

protectedinherited

Short hand for ToRangeImpl.

Definition at line 49 of file Findlet.h.

ToVector [2/2]

using ToVector

protectedinherited

Short hand for ToRangeImpl.

Definition at line 49 of file Findlet.h.

WeightedRelationItem

template<class ACollectorItem, class ACollectionItem, class AFilter>

using WeightedRelationItem = WeightedRelation<ACollectorItem, const ACollectionItem>

Shortcut class name for a weighted relation between a collector item and a collection item.

Definition at line 49 of file FilterSelector.h.

Constructor & Destructor Documentation

FilterSelector()

template<class ACollectorItem, class ACollectionItem, class AFilter>

FilterSelector ( )

inline

Add the chosen filter as a process signal listener.

Definition at line 55 of file FilterSelector.h.

                       : Super()
      {
        Super::addProcessingSignalListener(&m_filter);
      }

Member Function Documentation

addProcessingSignalListener()

void addProcessingSignalListener ( ProcessingSignalListener * psl )

protectedinherited

Register a processing signal listener to be notified.

Definition at line 53 of file CompositeProcessingSignalListener.cc.

{
  m_subordinaryProcessingSignalListeners.push_back(psl);
}

apply()

template<class ACollectorItem, class ACollectionItem, class AFilter>

void apply ( std::vector< WeightedRelationItem > & weightedRelations )

inlineoverride

Main function of the class: calculate the filter result and remove all relations, where the filter returns NaN.

Definition at line 68 of file FilterSelector.h.

      {
        for (WeightedRelationItem& weightedRelation : weightedRelations) {
          const Weight weight = m_filter(weightedRelation);
          weightedRelation.setWeight(weight);
        }
 
        const auto& weightIsNan = [](const WeightedRelationItem & item) {
          return std::isnan(item.getWeight());
        };
 
        // Erase all items with a weight of NAN
        erase_remove_if(weightedRelations, weightIsNan);
 
        std::sort(weightedRelations.begin(), weightedRelations.end());
      }

beginEvent()

void beginEvent ( )

overrideinherited

Receive and dispatch signal for the start of a new event.

Definition at line 36 of file CompositeProcessingSignalListener.cc.

{
  Super::beginEvent();
  for (ProcessingSignalListener* psl : m_subordinaryProcessingSignalListeners) {
    psl->beginEvent();
  }
}

beginRun()

void beginRun ( )

overrideinherited

Receive and dispatch signal for the beginning of a new run.

Definition at line 33 of file CompositeProcessingSignalListener.cc.

{
  Super::beginRun();
  for (ProcessingSignalListener* psl : m_subordinaryProcessingSignalListeners) {
    psl->beginRun();
  }
}

endRun()

void endRun ( )

overrideinherited

Receive and dispatch signal for the end of the run.

Definition at line 39 of file CompositeProcessingSignalListener.cc.

{
  for (ProcessingSignalListener* psl : reversedRange(m_subordinaryProcessingSignalListeners)) {
    psl->endRun();
  }
  Super::endRun();
}

exposeParameters()

template<class ACollectorItem, class ACollectionItem, class AFilter>

void exposeParameters ( ModuleParamList * moduleParamList, const std::string & prefix )

inlineoverridevirtual

Expose the parameters of the filter.

Reimplemented from CompositeProcessingSignalListener.

Definition at line 61 of file FilterSelector.h.

      {
        Super::exposeParameters(moduleParamList, prefix);
        m_filter.exposeParameters(moduleParamList, prefix);
      }

getDescription() [1/2]

virtual std::string getDescription ( )

inlinevirtualinherited

Brief description of the purpose of the concrete findlet.

Definition at line 60 of file Findlet.h.

      {
        return "(no description)";
      }

getDescription() [2/2]

virtual std::string getDescription ( )

inlinevirtualinherited

Brief description of the purpose of the concrete findlet.

Definition at line 60 of file Findlet.h.

      {
        return "(no description)";
      }

getNProcessingSignalListener()

int getNProcessingSignalListener ( )

protectedinherited

Get the number of currently registered listeners.

Definition at line 56 of file CompositeProcessingSignalListener.cc.

{
  return m_subordinaryProcessingSignalListeners.size();
}

initialize()

void initialize ( )

overrideinherited

Receive and dispatch signal before the start of the event processing.

Definition at line 30 of file CompositeProcessingSignalListener.cc.

{
  Super::initialize();
  for (ProcessingSignalListener* psl : m_subordinaryProcessingSignalListeners) {
    psl->initialize();
  }
}

terminate()

void terminate ( )

overrideinherited

Receive and dispatch Signal for termination of the event processing.

Definition at line 42 of file CompositeProcessingSignalListener.cc.

{
  for (ProcessingSignalListener* psl : reversedRange(m_subordinaryProcessingSignalListeners)) {
    psl->terminate();
  }
  Super::terminate();
}

Member Data Documentation

m_filter

template<class ACollectorItem, class ACollectionItem, class AFilter>

AFilter m_filter

private

The filter to use.

Definition at line 87 of file FilterSelector.h.

m_initialized

bool m_initialized

privateinherited

Flag to keep track whether initialization happened before.

Definition at line 52 of file ProcessingSignalListener.h.

m_initializedAs

std::string m_initializedAs

privateinherited

Name of the type during initialisation.

Definition at line 58 of file ProcessingSignalListener.h.

m_subordinaryProcessingSignalListeners

std::vector<ProcessingSignalListener*> m_subordinaryProcessingSignalListeners

privateinherited

References to subordinary signal processing listener contained in this findlet.

Definition at line 60 of file CompositeProcessingSignalListener.h.

m_terminated

bool m_terminated

privateinherited

Flag to keep track whether termination happened before.

Definition at line 55 of file ProcessingSignalListener.h.

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The documentation for this class was generated from the following file:

• tracking/trackFindingCDC/collectors/selectors/include/FilterSelector.h