Auxiliary class to sample from a list of files. More...

#include <JTreeSampler.hh>

Inheritance diagram for JSUPPORT::JTreeSampler< T, JSampler_t >:

Public Types
typedef JSampler_t< T >	sampler_type

typedef JTemplate< JType_t >	template_type

typedef JObjectIterator< T >::pointer_type	pointer_type

Public Member Functions
	JTreeSampler (const sampler_type &sampler=sampler_type())
	Constructor.

	operator const JType_t & () const
	Type conversion.

	operator JType_t & ()
	Type conversion.

const JType_t *	operator-> () const
	Smart pointer operator.

JType_t *	operator-> ()
	Smart pointer operator.

template<class T , bool use_polymorphism = false>
const T &	get () const
	Get reference to object.

template<class T , bool use_polymorphism = false>
T &	get ()
	Get reference to object.

template_type &	set (const JType_t &value)
	Set value.

template<bool use_polymorphism, class T >
template_type &	set (const T &value)
	Set value.

virtual bool	hasNext () override
	Check availability of next element.

virtual const pointer_type &	next () override
	Get next element.

const JSampler_t< T > &	getSampler () const
	Get sampler.

JSampler_t< T > &	getSampler ()
	Get sampler.

virtual skip_type	skip (const skip_type ns)
	Skip items.

Protected Member Functions
const JType_t &	c_get (JBool< true > option) const
	Get reference to object.

JType_t &	c_get (JBool< true > option)
	Get reference to object.

template<class T >
template_type &	c_set (const T &value, JBool< true > option)
	Set value.

Protected Attributes
JType_t	object
	object

JRewindableObjectIterator< T > &	in

JSampler_t< T >	sampler

JPointer< T >	ps

bool	has_next

Detailed Description

template<class T, template< class > class JSampler_t = JSampler>
struct JSUPPORT::JTreeSampler< T, JSampler_t >

Auxiliary class to sample from a list of files.

Definition at line 28 of file JTreeSampler.hh.

Member Typedef Documentation

◆ sampler_type

template<class T , template< class > class JSampler_t = JSampler>

JSampler_t<T> JSUPPORT::JTreeSampler< T, JSampler_t >::sampler_type

Definition at line 33 of file JTreeSampler.hh.

◆ template_type

template<class JType_t >

JTemplate<JType_t> JLANG::JTemplate< JType_t >::template_type

inherited

Definition at line 42 of file JTemplate.hh.

◆ pointer_type

template<class T , template< class > class JSampler_t = JSampler>

JObjectIterator<T>::pointer_type JLANG::JObjectSampler< T, JSampler_t >::pointer_type

inherited

Definition at line 45 of file JObjectSampler.hh.

Constructor & Destructor Documentation

◆ JTreeSampler()

template<class T , template< class > class JSampler_t = JSampler>

JSUPPORT::JTreeSampler< T, JSampler_t >::JTreeSampler ( const sampler_type & sampler = sampler_type() )

inline

Constructor.

Parameters

sampler sampler

Definition at line 41 of file JTreeSampler.hh.

                                                               :
      JTemplate< JTreeScanner<T> >(),
      JObjectSampler<T, JSampler_t>(this->template get<JRewindableObjectIterator<T>,true>(), sampler)
    {}

Member Function Documentation

◆ operator const JType_t &()

template<class JType_t >

JLANG::JTemplate< JType_t >::operator const JType_t & ( ) const

inlineinherited

Type conversion.

Returns: reference to object

Definition at line 68 of file JTemplate.hh.

    {
      return object;
    }

◆ operator JType_t &()

template<class JType_t >

JLANG::JTemplate< JType_t >::operator JType_t & ( )

inlineinherited

Type conversion.

Returns: reference to object

Definition at line 79 of file JTemplate.hh.

    {
      return object;
    }

◆ operator->() [1/2]

template<class JType_t >

const JType_t * JLANG::JTemplate< JType_t >::operator-> ( ) const

inlineinherited

Smart pointer operator.

Returns: pointer to object

Definition at line 90 of file JTemplate.hh.

    { 
      return &object;
    }

◆ operator->() [2/2]

template<class JType_t >

JType_t * JLANG::JTemplate< JType_t >::operator-> ( )

inlineinherited

Smart pointer operator.

Returns: pointer to object

Definition at line 101 of file JTemplate.hh.

    { 
      return &object;
    }

◆ get() [1/2]

template<class JType_t >

template<class T , bool use_polymorphism = false>

const T & JLANG::JTemplate< JType_t >::get ( ) const

inlineinherited

Get reference to object.

Returns: reference to object

Definition at line 113 of file JTemplate.hh.

    {
      return this->c_get(JBool<use_polymorphism>().template c_switch<JConversion<JType_t, T>::is_derived, JConversion<JType_t, T>::is_same>());
    }

◆ get() [2/2]

template<class JType_t >

template<class T , bool use_polymorphism = false>

T & JLANG::JTemplate< JType_t >::get ( )

inlineinherited

Get reference to object.

Returns: reference to object

Definition at line 125 of file JTemplate.hh.

    {
      return this->c_get(JBool<use_polymorphism>().template c_switch<JConversion<JType_t, T>::is_derived, JConversion<JType_t, T>::is_same>());
    }

◆ set() [1/2]

template<class JType_t >

template_type & JLANG::JTemplate< JType_t >::set ( const JType_t & value )

inlineinherited

Set value.

Parameters

value value

Returns: this object

Definition at line 137 of file JTemplate.hh.

    {
      return c_set(value, JBool<true>());
    }

◆ set() [2/2]

template<class JType_t >

template<bool use_polymorphism, class T >

template_type & JLANG::JTemplate< JType_t >::set ( const T & value )

inlineinherited

Set value.

Parameters

value value

Returns: this object

Definition at line 150 of file JTemplate.hh.

    {
      return this->c_set(value, JBool<use_polymorphism>::template c_switch<JConstructor<JType_t, T>::has_constructor, JConversion<JType_t, T>::is_same>());
    }

◆ c_get() [1/2]

template<class JType_t >

const JType_t & JLANG::JTemplate< JType_t >::c_get ( JBool< true > option ) const

inlineprotectedinherited

Get reference to object.

Parameters

option true

Returns: reference to object

Definition at line 188 of file JTemplate.hh.

    {
      return object;
    }

◆ c_get() [2/2]

template<class JType_t >

JType_t & JLANG::JTemplate< JType_t >::c_get ( JBool< true > option )

inlineprotectedinherited

Get reference to object.

Parameters

option true

Returns: reference to object

Definition at line 200 of file JTemplate.hh.

    {
      return object;
    }

◆ c_set()

template<class JType_t >

template<class T >

template_type & JLANG::JTemplate< JType_t >::c_set	(	const T &	value,
		JBool< true >	option )

inlineprotectedinherited

Set value.

Parameters

value	value
option	true

Returns: this object

Definition at line 214 of file JTemplate.hh.

    {
      object = value;
 
      return *this;
    }

◆ hasNext()

template<class T , template< class > class JSampler_t = JSampler>

virtual bool JLANG::JObjectSampler< T, JSampler_t >::hasNext ( )

inlineoverridevirtualinherited

Check availability of next element.

Returns: true if the iteration has more elements; else false

Implements JLANG::JObjectIterator< T >.

Definition at line 78 of file JObjectSampler.hh.

    {
      while (!has_next) {
 
        if (!in.hasNext()) {
          in.rewind();
        }
 
        if (in.hasNext()) {
 
          ps.set(in.next());
          
          skip_type ns = sampler(*ps);
 
          if (ns == 0) {
 
            has_next = true;
 
          } else {
 
            while ((ns -= in.skip(ns)) != 0) {
              in.rewind();
            }
          }
 
        } else {
 
          // nothing to sample
          
          break;
        }
      }
 
      return has_next;
    }

◆ next()

template<class T , template< class > class JSampler_t = JSampler>

virtual const pointer_type & JLANG::JObjectSampler< T, JSampler_t >::next ( )

inlineoverridevirtualinherited

Get next element.

Returns: pointer to element

Implements JLANG::JObjectIterator< T >.

Definition at line 120 of file JObjectSampler.hh.

    {
      if (!has_next) {
        ps.reset(NULL);
      }
 
      has_next = false;
      
      return ps;
    }

◆ getSampler() [1/2]

template<class T , template< class > class JSampler_t = JSampler>

const JSampler_t< T > & JLANG::JObjectSampler< T, JSampler_t >::getSampler ( ) const

inlineinherited

Get sampler.

Returns: sampler

Definition at line 137 of file JObjectSampler.hh.

    {
      return sampler;
    }

◆ getSampler() [2/2]

template<class T , template< class > class JSampler_t = JSampler>

JSampler_t< T > & JLANG::JObjectSampler< T, JSampler_t >::getSampler ( )

inlineinherited

Get sampler.

Returns: sampler

Definition at line 148 of file JObjectSampler.hh.

    {
      return sampler;
    }

◆ skip()

template<class T >

virtual skip_type JLANG::JObjectIterator< T >::skip ( const skip_type ns )

inlinevirtualinherited

Skip items.

Parameters

ns	number of items to skip

Returns: number of items skipped

Definition at line 90 of file JObjectIterator.hh.

    {
      skip_type i = 0;
 
      for ( ; i != ns && hasNext(); ++i) {
        next();
      }
 
      return i;
    }

Member Data Documentation

◆ object

template<class JType_t >

JType_t JLANG::JTemplate< JType_t >::object

protectedinherited

object

Definition at line 222 of file JTemplate.hh.

◆ in

template<class T , template< class > class JSampler_t = JSampler>

JRewindableObjectIterator<T>& JLANG::JObjectSampler< T, JSampler_t >::in

protectedinherited

Definition at line 154 of file JObjectSampler.hh.

◆ sampler

template<class T , template< class > class JSampler_t = JSampler>

JSampler_t<T> JLANG::JObjectSampler< T, JSampler_t >::sampler

protectedinherited

Definition at line 155 of file JObjectSampler.hh.

◆ ps

template<class T , template< class > class JSampler_t = JSampler>

JPointer<T> JLANG::JObjectSampler< T, JSampler_t >::ps

protectedinherited

Definition at line 156 of file JObjectSampler.hh.

◆ has_next

template<class T , template< class > class JSampler_t = JSampler>

bool JLANG::JObjectSampler< T, JSampler_t >::has_next

protectedinherited

Definition at line 157 of file JObjectSampler.hh.

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

JTreeSampler.hh

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ sampler_type

◆ template_type

◆ pointer_type

Constructor & Destructor Documentation

◆ JTreeSampler()

Member Function Documentation

◆ operator const JType_t &()

◆ operator JType_t &()

◆ operator->() [1/2]

◆ operator->() [2/2]

◆ get() [1/2]

◆ get() [2/2]

◆ set() [1/2]

◆ set() [2/2]

◆ c_get() [1/2]

◆ c_get() [2/2]

◆ c_set()

◆ hasNext()

◆ next()

◆ getSampler() [1/2]

◆ getSampler() [2/2]

◆ skip()

Member Data Documentation

◆ object

◆ in

◆ sampler

◆ ps

◆ has_next