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/* inmemory_positionlist.cc
*
* Copyright 1999,2000,2001 BrightStation PLC
* Copyright 2003,2009 Olly Betts
*
* This program 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 2 of the
* License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include "inmemory_positionlist.h"
#include "debuglog.h"
#include "omassert.h"
InMemoryPositionList::InMemoryPositionList(const OmDocumentTerm::term_positions & positions_)
: positions(positions_), mypos(positions.begin()),
iterating_in_progress(false)
{
}
void
InMemoryPositionList::set_data(const OmDocumentTerm::term_positions & positions_)
{
positions = positions_;
mypos = positions.begin();
iterating_in_progress = false;
}
Xapian::termcount
InMemoryPositionList::get_size() const
{
return positions.size();
}
Xapian::termpos
InMemoryPositionList::get_position() const
{
Assert(iterating_in_progress);
Assert(!at_end());
return *mypos;
}
void
InMemoryPositionList::next()
{
if (iterating_in_progress) {
Assert(!at_end());
++mypos;
} else {
iterating_in_progress = true;
}
}
void
InMemoryPositionList::skip_to(Xapian::termpos termpos)
{
if (!iterating_in_progress) iterating_in_progress = true;
while (!at_end() && *mypos < termpos) ++mypos;
}
bool
InMemoryPositionList::at_end() const
{
return (mypos == positions.end());
}
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