JLANG::JStreamObjectIterator< T > Class Template Reference

Stream object iterator. More...

#include <JStreamObjectIterator.hh>

Inheritance diagram for JLANG::JStreamObjectIterator< T >:

Public Types
typedef JObjectIterator< T > ::pointer_type	pointer_type

Public Member Functions
	JStreamObjectIterator (std::istream &in)
	Constructor. More...
virtual bool	setObject (T &object) override
	Set object. 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...

Protected Attributes
std::istream &	__in
T	object
	object More...
bool	has_next
	status More...

Detailed Description

template<class T>
class JLANG::JStreamObjectIterator< T >

Stream object iterator.

This class implements the JAbstractObjectIterator interface.

Definition at line 25 of file JStreamObjectIterator.hh.

Member Typedef Documentation

template<class T>

typedef JObjectIterator<T>::pointer_type JLANG::JAbstractObjectIterator< T >::pointer_type

inherited

Definition at line 39 of file JAbstractObjectIterator.hh.

Constructor & Destructor Documentation

template<class T >

JLANG::JStreamObjectIterator< T >::JStreamObjectIterator ( std::istream &  in )

inline

Constructor.

Parameters

in	input stream

Definition at line 34 of file JStreamObjectIterator.hh.

                                          :
      __in(in)
    {}

Member Function Documentation

template<class T >

virtual bool JLANG::JStreamObjectIterator< T >::setObject ( T &  object )

inlineoverridevirtual

Set object.

Parameters

object

reference to object to be set

Returns

true if set; else false

Implements JLANG::JAbstractObjectIterator< T >.

Definition at line 45 of file JStreamObjectIterator.hh.

    {
      return (bool) (__in && __in >> object);
    }

template<class T>

virtual bool JLANG::JAbstractObjectIterator< 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 56 of file JAbstractObjectIterator.hh.

    {
      if (!has_next) {
        has_next = this->setObject(object);
      }

      return has_next;
    }

template<class T>

virtual const pointer_type& JLANG::JAbstractObjectIterator< T >::next ( )

inlineoverridevirtualinherited

Get next element.

Returns

pointer to element

Implements JLANG::JObjectIterator< T >.

Definition at line 71 of file JAbstractObjectIterator.hh.

    {
      if (has_next)
        ps.reset(&this->object);
      else
        ps.reset(NULL);

      has_next = false;
      
      return ps;
    }

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

Reimplemented in JLANG::JPipe< T >, JLANG::JPipe< JTail_t >, JLANG::JPipe< JHead_t >, JLANG::JSTDObjectIterator< T >, JLANG::JAbstractObjectReader< T >, JLANG::JAbstractObjectReader< JNullType >, JLANG::JAbstractObjectReader< const T >, JLANG::JAbstractObjectReader< JTail_t >, JLANG::JAbstractObjectReader< JHead_t >, JLANG::JAbstractObjectReader< KM3NETDAQ::KM3NETDAQ::JDAQEvent >, JLANG::JAbstractObjectReader< JDAQSummaryslice >, and JLANG::JAbstractObjectReader< JTypeList< JDAQEvent, JTypelist_t > >.

Definition at line 90 of file JObjectIterator.hh.

    {
      skip_type i = 0;

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

      return i;
    }

Member Data Documentation

template<class T >

std::istream& JLANG::JStreamObjectIterator< T >::__in

protected

Definition at line 51 of file JStreamObjectIterator.hh.

template<class T>

T JLANG::JAbstractObjectIterator< T >::object

protectedinherited

object

Definition at line 34 of file JAbstractObjectIterator.hh.

template<class T>

bool JLANG::JAbstractObjectIterator< T >::has_next

protectedinherited

status

Definition at line 35 of file JAbstractObjectIterator.hh.

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

• JStreamObjectIterator.hh