package org.lcsim.recon.tracking.trfbase;
   // Concrete Miss class for testing Miss and providing an example.
   
   import org.lcsim.recon.tracking.trfbase.ETrack;
   import org.lcsim.recon.tracking.trfbase.Miss;
   import org.lcsim.recon.tracking.trfbase.Surface;
   
   // Dummy miss class.
   
  public class MissTest extends Miss
  {
      
      // attributes
      
      // static pointer specifying the type
      static String _mytype = "MissTest";
      
      // surface
      private SurfTest _srf;
      
      // fixed likelihood -- in a real miss this would be calculated
      // from the track and surface
      private double _like;
      
      // constructor from surface and likelihood
      public MissTest(double par,double like)
      {
          _srf = new SurfTest(par);
          _like = like;
      }
      
      // return the type identifier
      public String type()
      { return _mytype; }
      
      //
      /** clone
       * @return new copy of this Miss
       */
      public Miss newCopy()
      {
          return new MissTest(_srf.parameter(0),_like);
      }
      
      // update the likelihood -- again should use track and surface;
      // here we simply decrease the old value by 10%
      /** update the likelihood
       * @param tre ETrack to update the likelihood
       */
      public void update( ETrack tre)
      { _like *= 0.9; }
      
      // return the surface
      public  Surface surface()
      {
          return new SurfTest(_srf);
      }
      
      // return the likelihood
      public double likelihood()
      { return _like; }
      
      public String toString()
      {
          return  "Miss Test layer with surface " + _srf
                  + "\n and fixed likelihood = " + _like;
          
      }
      
      public boolean equals( MissTest miss)
      {
          if( ! _srf.equals(miss._srf) ) return false;
          if( _like != miss._like ) return false;
          return true;
      }
      
  }