/*
* 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>.
*/
#include "dbobjectiterator.hh"
#include "objectbroker.hh"
#include "dbref.hh"
#include "raslib/rmdebug.hh"

template<class T> 
DBObjectIterator<T>::DBObjectIterator(const DBObjectIterator<T>& oidlist)
	:	mySet(NULL),
		counter(0)
	{
	RMDBGONCE(7, RMDebug::module_adminif, "DBObjectIterator", "DBObjectIterator(const DBObjectIterator<T>&)");
	mySet = new OIdSet(*(oidlist.mySet));
	myIter = mySet->begin();
	}

template<class T> 
DBObjectIterator<T>::DBObjectIterator(const OIdSet& oidlist)
	:	mySet(NULL),
		counter(0)
	{
	RMDBGONCE(7, RMDebug::module_adminif, "DBObjectIterator", "DBObjectIterator(OIdSet)");
	mySet = new OIdSet(oidlist);
	myIter = mySet->begin();
	}

template<class T> void
DBObjectIterator<T>::reset()
	{
	RMDBGONCE(7, RMDebug::module_adminif, "DBObjectIterator","reset()"); 
	myIter = mySet->begin();
	counter = 0;
	}

template<class T> bool
DBObjectIterator<T>::not_done() const
	{
	RMDBGENTER(7, RMDebug::module_adminif, "DBObjectIterator","not_done()"); 
	bool retval = false;
	if (myIter == mySet->end())
		{
		retval = false;
		}
	else	{
		if (mySet->empty())
			{
			retval = false;
			}
		else	{
			if (counter == mySet->size())
				retval = false;
			else
				retval = true;
			}
		}
        RMDBGEXIT(7, RMDebug::module_adminif, "DBObjectIterator","not_done() " << retval);  
	return retval;
	}

template<class T> void
DBObjectIterator<T>::advance()
	{
        RMDBGONCE(7, RMDebug::module_adminif, "DBObjectIterator","advance() " << counter); 
	myIter++;
	counter++;
	}

template<class T> DBRef<T>
DBObjectIterator<T>::get_element() const
	{
	RMDBGONCE(7, RMDebug::module_adminif, "DBObjectIterator", "get_element() " << *myIter << " " << (*myIter).getType());
	return DBRef<T>(*myIter);
	}

template<class T>
DBObjectIterator<T>::~DBObjectIterator()
	{
	RMDBGONCE(7, RMDebug::module_adminif, "DBObjectIterator", "~DBObjectIterator()");
	delete mySet;
	mySet = NULL;
	counter = 0;
	}