JLANG::JObjectMultiplexer< JDerived_t, JBase_t > Class Template Reference

Auxiliary class for multiplexing object iterators. More...

#include <JObjectIterator.hh>

Inheritance diagram for JLANG::JObjectMultiplexer< JDerived_t, JBase_t >:

Public Types
typedef JObjectIterator < JDerived_t >	iterator_type
typedef JObjectIterator < JBase_t >::pointer_type	pointer_type
typedef JSinglePointer < JObjectMultiplexer < JDerived_t, JBase_t > >	multiplexer_type
typedef JValve< JDerived_t >	valve_type

Public Member Functions
	JObjectMultiplexer (iterator_type &input, const valve_type &valve=valve_type())
	Constructor. More...
virtual bool	hasNext () override
	Check availability of next element. More...
virtual const pointer_type &	next () override
	Get next element. More...
virtual skip_type	skip (const skip_type ns)
	Skip items. More...

Public Attributes
valve_type	valve

Static Public Attributes
static multiplexer_type	multiplexer
	Multiplexer. More...

Private Attributes
iterator_type &	in
pointer_type	ps

Friends
void	operator| (JObjectMultiplexer &in, JObjectOutput< JBase_t > &out)
	Pipe operator. More...

Detailed Description

template<class JDerived_t, class JBase_t>
class JLANG::JObjectMultiplexer< JDerived_t, JBase_t >

Auxiliary class for multiplexing object iterators.

The template argument JDerived_t refers to a list of multiple object iterators which are sequentially processed.
The template argument JBase_t refers to a single object iterator which provides for a common interface to the multiple object iterators.

This class implements the JLANG::JObjectIterator interface.

Definition at line 37 of file JObjectIterator.hh.

Member Typedef Documentation

template<class JDerived_t, class JBase_t>

typedef JObjectIterator<JDerived_t> JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::iterator_type

Definition at line 38 of file JObjectMultiplexer.hh.

template<class JDerived_t, class JBase_t>

typedef JObjectIterator<JBase_t>::pointer_type JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::pointer_type

Definition at line 39 of file JObjectMultiplexer.hh.

template<class JDerived_t, class JBase_t>

typedef JSinglePointer< JObjectMultiplexer<JDerived_t, JBase_t> > JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::multiplexer_type

Definition at line 40 of file JObjectMultiplexer.hh.

template<class JDerived_t, class JBase_t>

typedef JValve<JDerived_t> JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::valve_type

Definition at line 41 of file JObjectMultiplexer.hh.

Constructor & Destructor Documentation

template<class JDerived_t, class JBase_t>

JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::JObjectMultiplexer ( iterator_type &  input, const valve_type &  valve = valve_type()  )

inline

Constructor.

Parameters

input	object iterator
valve	valve

Definition at line 50 of file JObjectMultiplexer.hh.

                                                               :
      valve(valve),
      in(input)
    {}

Member Function Documentation

template<class JDerived_t, class JBase_t>

virtual bool JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::hasNext ( )

inlineoverridevirtual

Check availability of next element.

Returns

true if the valve is open and the iteration has more elements; else false

Implements JLANG::JObjectIterator< JBase_t >.

Reimplemented in JLANG::JObjectMultiplexer< JTypeList< JHead_t, JTail_t >, JBase_t >.

Definition at line 62 of file JObjectMultiplexer.hh.

    {
      if (valve.is_open())
        return in.hasNext();
      else
        return false;
    }

template<class JDerived_t, class JBase_t>

virtual const pointer_type& JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::next ( )

inlineoverridevirtual

Get next element.

Returns

pointer to element

Implements JLANG::JObjectIterator< JBase_t >.

Reimplemented in JLANG::JObjectMultiplexer< JTypeList< JHead_t, JTail_t >, JBase_t >.

Definition at line 76 of file JObjectMultiplexer.hh.

    {
      ps.reset(in.next());
 
      return ps;
    }

virtual skip_type JLANG::JObjectIterator< JBase_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;
    }

Friends And Related Function Documentation

template<class JDerived_t, class JBase_t>

void operator| ( JObjectMultiplexer< JDerived_t, JBase_t > &  in, JObjectOutput< JBase_t > &  out  )

friend

Pipe operator.

Parameters

in	object multiplexer
out	object output

Definition at line 90 of file JObjectMultiplexer.hh.

    {
      in >> out;
    }

Member Data Documentation

template<class JDerived_t, class JBase_t>

valve_type JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::valve

Definition at line 95 of file JObjectMultiplexer.hh.

template<class JDerived_t, class JBase_t>

JSinglePointer< JObjectMultiplexer< JDerived_t, JBase_t > > JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::multiplexer

static

Multiplexer.

Definition at line 97 of file JObjectMultiplexer.hh.

template<class JDerived_t, class JBase_t>

iterator_type& JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::in

private

Definition at line 100 of file JObjectMultiplexer.hh.

template<class JDerived_t, class JBase_t>

pointer_type JLANG::JObjectMultiplexer< JDerived_t, JBase_t >::ps

private

Definition at line 101 of file JObjectMultiplexer.hh.

---

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

• JObjectIterator.hh
• JObjectMultiplexer.hh