mosesdecoder/moses/TranslationOptionCollectionLattice.h

// $Id$
#pragma once

#include "TranslationOptionCollection.h"
#include "InputPath.h"

namespace Moses
{

class WordLattice;

/** Holds all translation options, for all spans, of a lattice input. NOT confusion networks
 * No legacy phrase-tables, CANNOT be used with Zen's binary phrase-table.
 */
class TranslationOptionCollectionLattice : public TranslationOptionCollection
{
protected:
	/* forcibly create translation option for a 1 word.
		* call the base class' ProcessOneUnknownWord() for each possible word in the confusion network
		* at a particular source position
	*/
  void ProcessUnknownWord(size_t sourcePos); // do not implement

public:
  TranslationOptionCollectionLattice(const WordLattice &source, size_t maxNoTransOptPerCoverage, float translationOptionThreshold);

  void CreateTranslationOptions();

  void CreateTranslationOptionsForRange(const DecodeGraph &decodeStepList
      , size_t startPosition
      , size_t endPosition
      , bool adhereTableLimit
      , size_t graphInd); // do not implement

protected:
  void Extend(const InputPath &prevPath, const WordLattice &input);

};

}