mosesdecoder/moses/TrellisPathList.h

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// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#ifndef moses_TrellisPathList_h
#define moses_TrellisPathList_h
#include <list>
#include <set>
#include "TrellisPath.h"
namespace Moses
{
2012-06-29 02:29:46 +04:00
/** used to return n-best list of Trellis Paths from the Manager to the caller.
* Used by phrase-based decoding
*/
class TrellisPathList
{
protected:
std::list<const TrellisPath*> m_collection;
public:
// iters
typedef std::list<const TrellisPath*>::iterator iterator;
typedef std::list<const TrellisPath*>::const_iterator const_iterator;
iterator begin() {
return m_collection.begin();
}
iterator end() {
return m_collection.end();
}
const_iterator begin() const {
return m_collection.begin();
}
const_iterator end() const {
return m_collection.end();
}
~TrellisPathList() {
// clean up
RemoveAllInColl(m_collection);
}
//! add a new entry into collection
void Add(TrellisPath *trellisPath) {
m_collection.push_back(trellisPath);
}
const TrellisPath *pop() {
const TrellisPath *top = m_collection.front();
// Detach
m_collection.pop_front();
return top;
}
size_t GetSize() const {
return m_collection.size();
}
const TrellisPath at(size_t position) const {
const_iterator iter = m_collection.begin();
for(size_t i = position; i>0; i--) {
iter++;
}
return **iter;
}
};
}
#endif