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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_TargetPhraseCollection_h
#define moses_TargetPhraseCollection_h
#include <vector>
#include <iostream>
#include "TargetPhrase.h"
#include "Util.h"
namespace Moses
{
//! a list of target phrases that is translated from the same source phrase
class TargetPhraseCollection
{
protected:
friend std::ostream& operator<<(std::ostream &, const TargetPhraseCollection &);
std::vector<TargetPhrase*> m_collection;
public:
// iters
typedef std::vector<TargetPhrase*>::iterator iterator;
typedef std::vector<TargetPhrase*>::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();
}
~TargetPhraseCollection() {
RemoveAllInColl(m_collection);
}
const std::vector<TargetPhrase*> &GetCollection() const {
return m_collection;
}
//! divide collection into 2 buckets using std::nth_element, the top & bottom according to table limit
void NthElement(size_t tableLimit);
//! number of target phrases in this collection
size_t GetSize() const {
return m_collection.size();
}
//! wether collection has any phrases
bool IsEmpty() const {
return m_collection.empty();
}
//! add a new entry into collection
void Add(TargetPhrase *targetPhrase) {
m_collection.push_back(targetPhrase);
}
void Prune(bool adhereTableLimit, size_t tableLimit);
void Sort(bool adhereTableLimit, size_t tableLimit);
};
}
#endif
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