Containers::key_traits< KEY > Struct Template Reference

Key traits class. More...

#include <GaudiKernel/KeyedTraits.h>

Public Types
typedef KEY	key_type
	Declaration of key-type. More...
typedef KeyedObject< key_type >	obj_type
	Declaration of keyed object type. More...

Static Public Member Functions
static key_type	makeKey (long k)
	Create key from its full integer representation. More...
static key_type	makeKey (int k)
static long	identifier (const key_type &k)
	Full unhashed key identifier. More...
static long	hash (const key_type &key_value)
	Hash function for this key. More...
static void	setKey (obj_type *v, const key_type &k)
	Set object key when inserted into the container. More...
static bool	checkKey (obj_type *v, const key_type &k)
	Check the validity of the object's key. More...
static long	addRef (obj_type *v)
	Add reference counter to object when inserted into the container. More...
static long	release (obj_type *v)
	Release reference to object. More...

Detailed Description

template<class KEY>
struct Containers::key_traits< KEY >

Key traits class.

Definition of the key traits class.

This is the default class for keys. This implementation works "as is" for integer, long etc. keys.

For all other types of keys, this class must be either partially or completely specialized.

Author

M.Frank CERN/LHCb

Version

1.0

Definition at line 38 of file KeyedTraits.h.

Member Typedef Documentation

template<class KEY>

typedef KEY Containers::key_traits< KEY >::key_type

Declaration of key-type.

Definition at line 73 of file KeyedTraits.h.

template<class KEY>

typedef KeyedObject<key_type> Containers::key_traits< KEY >::obj_type

Declaration of keyed object type.

Definition at line 75 of file KeyedTraits.h.

Member Function Documentation

template<class KEY>

static long Containers::key_traits< KEY >::addRef ( obj_type *  v )

inlinestatic

Add reference counter to object when inserted into the container.

Definition at line 104 of file KeyedTraits.h.

{ return ( v ) ? v->addRef() : 0; }

template<class KEY>

static bool Containers::key_traits< KEY >::checkKey ( obj_type *  v, const key_type &  k  )

inlinestatic

Check the validity of the object's key.

Select if key-checks should be performed by switching on/off the macro CHECK_KEYED_CONTAINER.

Definition at line 95 of file KeyedTraits.h.

    {
#ifdef CHECK_KEYED_CONTAINER
      return ( v ) ? ( hash( v->key() ) == hash( k ) ) : false;
#else
      return true;
#endif
    }

template<class KEY>

static long Containers::key_traits< KEY >::hash ( const key_type &  key_value )

inlinestatic

Hash function for this key.

Definition at line 85 of file KeyedTraits.h.

{ return key_value; }

template<class KEY>

static long Containers::key_traits< KEY >::identifier ( const key_type &  k )

inlinestatic

Full unhashed key identifier.

Definition at line 83 of file KeyedTraits.h.

{ return k; }

template<class KEY>

static key_type Containers::key_traits< KEY >::makeKey ( long  k )

inlinestatic

Create key from its full integer representation.

Not implementing on specialization may inhibit the creation of keys, i.e. then a key must be supplied at insertion time.

Definition at line 80 of file KeyedTraits.h.

{ return key_type( k ); }

template<class KEY>

static key_type Containers::key_traits< KEY >::makeKey ( int  k )

inlinestatic

Definition at line 81 of file KeyedTraits.h.

{ return key_type( k ); }

template<class KEY>

static long Containers::key_traits< KEY >::release ( obj_type *  v )

inlinestatic

Release reference to object.

Definition at line 106 of file KeyedTraits.h.

{ return ( v ) ? v->release() : 0; }

template<class KEY>

static void Containers::key_traits< KEY >::setKey ( obj_type *  v, const key_type &  k  )

inlinestatic

Set object key when inserted into the container.

Definition at line 87 of file KeyedTraits.h.

    {
      if ( v ) v->setKey( k );
    }

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

• GaudiKernel/GaudiKernel/KeyedTraits.h