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/*
* 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>.
*/
/*
* 2007-may-10 CJ fixed compilation errors (gcc 4.1)
*/
#ifndef _DBOBJECtIdIterATOR_HH_
#define _DBOBJECtIdIterATOR_HH_
template <class T> class DBObjectIdIterator;
template <class T> class DBRef;
class ObjectBroker;
#include "lists.h"
//@ManMemo: Module: {\bf reladminif}.
/*@Doc:
this object gets a set of oids. when an oid is accessed the iterator returns a DBRef to the oid.
*/
template<class T>
class DBObjectIdIterator
{
public:
DBObjectIdIterator(const std::set<DBRef<T>, std::less<DBRef<T> > >& oidlist);
/*@Doc:
constructs a new Iterator. the OIdSet will be deleted by the DBOBjectIdIterator.
there may be oids of objects with other classes present. you should be carefull
when using this feature - as in mddtypes/mddbasetypes/mdddim/domtypes
*/
DBObjectIdIterator(const DBObjectIdIterator<T>& it);
/*@Doc:
*/
~DBObjectIdIterator();
/*@Doc:
deletes the OIdSet passed to it in the constructor
*/
void reset();
/*@Doc:
resets the iterator to the beginning
*/
bool not_done() const;
/*@Doc:
checks if there are more elements
*/
void advance();
/*@Doc:
advances the iterator one entry
*/
DBRef<T> get_element() const;
/*@Doc:
returns an dbref<object>
*/
private:
typename std::set<DBRef<T>, std::less<DBRef<T> > >::iterator myIter;
/*@Doc:
internal pointer where the iterator is
*/
std::set<DBRef<T>, std::less<DBRef<T> > >* mySet;
/*@Doc:
the actual list which is used to lookup objects by the objectbroker
*/
unsigned int counter;
/*@Doc:
holds the actual position in set
*/
};
#ifdef EARLY_TEMPLATE
#ifdef __EXECUTABLE__
#include "dbobjectiditerator.cc"
#endif
#endif
#endif
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