/*
   * ASCLITE
   * Author: Jerome Ajot, Jon Fiscus, Nicolas Radde, Chris Laprun
   *
   * This software was developed at the National Institute of Standards and Technology by 
   * employees of the Federal Government in the course of their official duties. Pursuant
   * to title 17 Section 105 of the United States Code this software is not subject to
   * copyright protection and is in the public domain. ASCLITE is an experimental system.
   * NIST assumes no responsibility whatsoever for its use by other parties, and makes no
   * guarantees, expressed or implied, about its quality, reliability, or any other
   * characteristic. We would appreciate acknowledgement if the software is used.
   *
   * THIS SOFTWARE IS PROVIDED "AS IS."  With regard to this software, NIST MAKES NO EXPRESS
   * OR IMPLIED WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING MERCHANTABILITY,
   * OR FITNESS FOR A PARTICULAR PURPOSE.
   */
  	
  #ifndef LEVENSHTEINMATRIX_H
  #define LEVENSHTEINMATRIX_H
  
  #include "stdinc.h"
  #include "logger.h"
  
  const int C_UNCALCULATED = -1;
  
  /**
   * Generic class for the Levenshtein Cost Matrix (LCM)
   */
  class LevenshteinMatrix
  {
  	public:
  		LevenshteinMatrix();
  		virtual ~LevenshteinMatrix();
  	
  		virtual int GetCostFor(size_t* coordinates) = 0;
  		virtual void SetCostFor(size_t* coordinates, const int& cost) = 0 ;
  		virtual bool IsCostCalculatedFor(size_t* coordinates) = 0;	
  		virtual size_t GetNumberOfCalculatedCosts() = 0;
  	
  		virtual string ToString() = 0;
  };
  
  #endif