GaudiAlg::ID Class Reference

ID class for Histogram and Ntuples. More...

#include <GaudiAlg/GaudiHistoID.h>

Collaboration diagram for GaudiAlg::ID:

Public Types
typedef int	NumericID
	type for internal numeric ID More...
typedef std::string	LiteralID
	type for internal literal ID More...

Public Member Functions
	ID (const NumericID id=-1)
	Implicit constructor from a numeric ID. More...
	ID (LiteralID &&id)
	Implicit 'move' constructor from a literal ID. More...
	ID (const LiteralID &id)
	Implicit 'copy' constructor from a literal ID. More...
	ID (const char *id)
	Implicit constructor from a literal ID. More...
	~ID ()=default
	Destructor. More...
bool	numeric () const noexcept
	Is this ID numeric. More...
bool	literal () const noexcept
	Is this ID numeric. More...
bool	undefined () const noexcept
	Is this ID undefined. More...
const LiteralID &	literalID () const noexcept
	Returns the ID as a LiteralID. More...
NumericID	numericID () const noexcept
	Returns the numerical ID. More...
GAUDI_API LiteralID	idAsString () const
	Return ID as string, for both numeric and literal IDs. More...
	operator std::string () const
	cast operator to std::string More...
bool	operator== (const ID &id) const noexcept
	Implement the operator == Implementation depends on type of ID. More...
bool	operator!= (const ID &id) const
	Implement the != operator, using the == operator. More...
bool	operator< (const ID &id) const noexcept
	Implement the operator < Implementation depends on type of ID. More...
GAUDI_API std::ostream &	fillStream (std::ostream &s) const
bool	operator! () const noexcept
	good ID? More...
size_t	hash () const noexcept
	return hash value (for python) More...
size_t	__hash__ () const noexcept
	return hash value (for python) More...

Private Attributes
NumericID	m_nID {-1}
	Internal numeric ID. More...
LiteralID	m_aID
	Internal alpha-numeric ID. More...
size_t	m_hash {0}
	the hash value of ID More...

Detailed Description

ID class for Histogram and Ntuples.

Internally handles both numeric and string like IDs

Author

Chris Jones Chris.nosp@m.toph.nosp@m.er.Ro.nosp@m.b.Jo.nosp@m.nes@c.nosp@m.ern..nosp@m.ch

Date

2005-08-12

Definition at line 44 of file GaudiHistoID.h.

Member Typedef Documentation

typedef std::string GaudiAlg::ID::LiteralID

type for internal literal ID

Definition at line 51 of file GaudiHistoID.h.

typedef int GaudiAlg::ID::NumericID

type for internal numeric ID

Definition at line 49 of file GaudiHistoID.h.

Constructor & Destructor Documentation

GaudiAlg::ID::ID ( const NumericID  id = -1 )

inline

Implicit constructor from a numeric ID.

Definition at line 56 of file GaudiHistoID.h.

: m_nID( id ), m_hash( boost::hash_value( id ) ) {}

GaudiAlg::ID::ID ( LiteralID &&  id )

inline

Implicit 'move' constructor from a literal ID.

Definition at line 58 of file GaudiHistoID.h.

: m_aID( std::move( id ) ), m_hash( boost::hash_value( m_aID ) ) {}

GaudiAlg::ID::ID ( const LiteralID &  id )

inline

Implicit 'copy' constructor from a literal ID.

Definition at line 60 of file GaudiHistoID.h.

: m_aID( id ), m_hash( boost::hash_value( m_aID ) ) {}

GaudiAlg::ID::ID ( const char *  id )

inline

Implicit constructor from a literal ID.

Definition at line 62 of file GaudiHistoID.h.

: m_aID( id ), m_hash( boost::hash_value( m_aID ) ) {}

GaudiAlg::ID::~ID ( )

default

Destructor.

Member Function Documentation

size_t GaudiAlg::ID::__hash__ ( ) const

inlinenoexcept

return hash value (for python)

Definition at line 119 of file GaudiHistoID.h.

{ return hash(); }

std::ostream & GaudiAlg::ID::fillStream

(

std::ostream &

s

)

const

Definition at line 29 of file GaudiHistoID.cpp.

{
  if ( numeric() ) {
    s << numericID();
  } else if ( literal() ) {
    s << literalID();
  } else {
    s << "UNDEFINED";
  }
  return s;
}

size_t GaudiAlg::ID::hash ( ) const

inlinenoexcept

return hash value (for python)

Definition at line 117 of file GaudiHistoID.h.

{ return m_hash; }

GaudiAlg::ID::LiteralID GaudiAlg::ID::idAsString

(

)

const

Return ID as string, for both numeric and literal IDs.

Definition at line 20 of file GaudiHistoID.cpp.

{
  std::ostringstream s;
  fillStream( s );
  return s.str();
}

bool GaudiAlg::ID::literal ( ) const

inlinenoexcept

Is this ID numeric.

Definition at line 68 of file GaudiHistoID.h.

{ return !m_aID.empty(); }

const LiteralID& GaudiAlg::ID::literalID ( ) const

inlinenoexcept

Returns the ID as a LiteralID.

Definition at line 72 of file GaudiHistoID.h.

{ return m_aID; }

bool GaudiAlg::ID::numeric ( ) const

inlinenoexcept

Is this ID numeric.

Definition at line 66 of file GaudiHistoID.h.

{ return -1 != m_nID; }

NumericID GaudiAlg::ID::numericID ( ) const

inlinenoexcept

Returns the numerical ID.

Definition at line 74 of file GaudiHistoID.h.

{ return m_nID; }

GaudiAlg::ID::operator std::string ( ) const

inline

cast operator to std::string

Definition at line 78 of file GaudiHistoID.h.

{ return idAsString(); }

bool GaudiAlg::ID::operator! ( ) const

inlinenoexcept

good ID?

Definition at line 112 of file GaudiHistoID.h.

{ return undefined(); }

bool GaudiAlg::ID::operator!= ( const ID &  id ) const

inline

Implement the != operator, using the == operator.

Definition at line 92 of file GaudiHistoID.h.

{ return !( *this == id ); }

bool GaudiAlg::ID::operator< ( const ID &  id ) const

inlinenoexcept

Implement the operator < Implementation depends on type of ID.

Returns

boolean indicating the order of the IDs

Definition at line 97 of file GaudiHistoID.h.

    {
      return
          // hash () < id.hash () ? true  :
          // hash () > id.hash () ? false :
          numeric() && id.numeric()
              ? numericID() < id.numericID()
              : literal() && id.literal() ? literalID() < id.literalID() : idAsString() < id.idAsString();
    }

bool GaudiAlg::ID::operator== ( const ID &  id ) const

inlinenoexcept

Implement the operator == Implementation depends on type of ID.

Returns

boolean indicating if the IDs are equal

Definition at line 83 of file GaudiHistoID.h.

    {
      return hash() != id.hash()
                 ? false
                 : numeric() && id.numeric()
                       ? id.numericID() == numericID()
                       : literal() && id.literal() ? id.literalID() == literalID() : idAsString() == id.idAsString();
    }

bool GaudiAlg::ID::undefined ( ) const

inlinenoexcept

Is this ID undefined.

Definition at line 70 of file GaudiHistoID.h.

{ return !numeric() && !literal(); }

Member Data Documentation

LiteralID GaudiAlg::ID::m_aID

private

Internal alpha-numeric ID.

Definition at line 126 of file GaudiHistoID.h.

size_t GaudiAlg::ID::m_hash {0}

private

the hash value of ID

Definition at line 131 of file GaudiHistoID.h.

NumericID GaudiAlg::ID::m_nID {-1}

private

Internal numeric ID.

Definition at line 124 of file GaudiHistoID.h.

---

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

• GaudiAlg/GaudiAlg/GaudiHistoID.h
• GaudiAlg/src/lib/GaudiHistoID.cpp