JLANG::JAbstractRewindableObjectReader< T > Struct Template Reference

Abstract interface for object reading with rewinding. More...

#include <JAbstractObjectReader.hh>

Inheritance diagram for JLANG::JAbstractRewindableObjectReader< T >:

Public Types
typedef JObjectIterator< T >::pointer_type	pointer_type

Public Member Functions
virtual JRewindableObjectIterator< T > *	getHelper () const override=0
	Get helper.
virtual void	rewind () override
	Rewind.
virtual bool	hasNext () override
	Check availability of next element.
virtual const pointer_type &	next () override
	Get next element.
virtual skip_type	skip (const skip_type ns) override
	Skip items.

Private Attributes
pointer_type	ps

Detailed Description

template<class T>
struct JLANG::JAbstractRewindableObjectReader< T >

Abstract interface for object reading with rewinding.

This class implements the JRewindableObjectIterator interface by transferring the interface methods to a helper object via a single interface method getHelper().

Definition at line 89 of file JAbstractObjectReader.hh.

Member Typedef Documentation

pointer_type

template<class T >

JObjectIterator<T>::pointer_type JLANG::JAbstractObjectReader< T >::pointer_type

inherited

Definition at line 27 of file JAbstractObjectReader.hh.

Member Function Documentation

getHelper()

template<class T >

virtual JRewindableObjectIterator< T > * JLANG::JAbstractRewindableObjectReader< T >::getHelper ( ) const

overridepure virtual

Get helper.

Returns

pointer to helper

Implements JLANG::JAbstractObjectReader< T >.

Implemented in JLANG::JRewindableObjectReader< T >, JLANG::JRewindableObjectReader< const event_type >, JLANG::JRewindableObjectReader< const T >, JLANG::JRewindableObjectReader< JHead_t >, and JLANG::JRewindableObjectReader< JTail_t >.

rewind()

template<class T >

virtual void JLANG::JAbstractRewindableObjectReader< T >::rewind ( )

inlineoverridevirtual

Rewind.

Implements JLANG::JRewindable< T >.

Reimplemented in JLANG::JSTDObjectReader< JTypeList< JHead_t, JTail_t > >.

Definition at line 104 of file JAbstractObjectReader.hh.

    {
      if (this->getHelper() != NULL) {
        this->getHelper()->rewind();
      }
    }

hasNext()

template<class T >

virtual bool JLANG::JAbstractObjectReader< 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 43 of file JAbstractObjectReader.hh.

    {
      return (this->getHelper() != NULL && this->getHelper()->hasNext());
    }

next()

template<class T >

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

inlineoverridevirtualinherited

Get next element.

Returns

pointer to element

Implements JLANG::JObjectIterator< T >.

Definition at line 54 of file JAbstractObjectReader.hh.

    {
      if (this->getHelper() != NULL)
        return this->getHelper()->next();
      else
        return ps;
    }

skip()

template<class T >

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

inlineoverridevirtualinherited

Skip items.

Parameters

ns	number of items to skip

Returns

number of items skipped

Reimplemented from JLANG::JObjectIterator< T >.

Definition at line 69 of file JAbstractObjectReader.hh.

    {
      if (this->getHelper() != NULL)
        return this->getHelper()->skip(ns);
      else
        return 0;
    } 

Member Data Documentation

ps

template<class T >

pointer_type JLANG::JAbstractObjectReader< T >::ps

privateinherited

Definition at line 78 of file JAbstractObjectReader.hh.

---

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

• JAbstractObjectReader.hh