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/*
* TrellisPaths.h
*
* Created on: 16 Mar 2016
* Author: hieu
*/
#pragma once
#include <vector>
#include <queue>
#include "PhraseBased/TrellisPath.h"
namespace Moses2
{
template<typename T>
struct CompareTrellisPath
{
bool operator()(const T* pathA, const T* pathB) const
{
return (pathA->GetFutureScore() < pathB->GetFutureScore());
}
};
template<typename T>
class TrellisPaths
{
public:
TrellisPaths() {}
virtual ~TrellisPaths()
{
while (!empty()) {
T *path = Get();
delete path;
}
}
bool empty() const
{
return m_coll.empty();
}
//! add a new entry into collection
void Add(T *trellisPath)
{
m_coll.push(trellisPath);
}
T *Get()
{
T *top = m_coll.top();
// Detach
m_coll.pop();
return top;
}
size_t GetSize() const
{ return m_coll.size(); }
protected:
typedef std::priority_queue<T*, std::vector<T*>,
CompareTrellisPath<T> > CollectionType;
CollectionType m_coll;
};
} /* namespace Moses2 */
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