iterator.hh

Go to the documentation of this file.

/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
 
#ifndef _D_ITERATOR_
#define _D_ITERATOR_
 
#include "rasodmg/collection.hh"
 
//@ManMemo: Module: {\bf rasodmg}
 
template <class T>
class r_Iterator
{
public:
    r_Iterator() = default;
    r_Iterator(const r_Iterator<T> &iter);
    explicit r_Iterator(r_Collection<T> &source, int removed_objects = 0);
    ~r_Iterator() = default;
 
    r_Iterator<T> &operator=(const r_Iterator<T> &iter);
    int is_equal(const r_Iterator<T> &iter) const;
 
    r_Iterator<T> &operator++();
    r_Iterator<T> operator++(int);
 
    void reset(int removed_objects = 0);
    bool not_done() const;
    void advance();
 
    T operator*();
    T get_element() const;
 
    bool next(T &element);
 
    void replace_element(const T &element);
 
private:
    bool ndone{false};
    r_Collection<T> *collection{NULL};
    typename r_Collection<T>::CNode *ptr{NULL};
};
 
class r_GMarray;
extern template class r_Iterator<r_GMarray *>;
class r_Ref_Any;
extern template class r_Iterator<r_Ref_Any>;
class r_Object;
template <typename T>
class r_Ref;
extern template class r_Iterator<r_Ref<r_Object>>;
extern template class r_Iterator<r_Ref<r_GMarray>>;
 
struct GenRefElement;
extern template class r_Iterator<GenRefElement *>;
 
#endif