JSampler.hh

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#ifndef __JLANG__JSAMPLER__
#define __JLANG__JSAMPLER__
 
#include "JLang/JObjectIterator.hh"
 
 
/**
 * \author mdejong
 */
 
namespace JLANG {}
namespace JPP { using namespace JLANG; }
 
namespace JLANG {
 
  /**
   * Template class for sampling from a JRewindableObjectIterator.
   *
   * This class should be specialised for other samplings than complete.
   */
  template<class T>
  struct JSampler {
    /**
     * Default constructor.
     */
    JSampler()
    {}
 
    
    /**
     * Get number of objects to skip at given object (0 means accept).
     *
     * \param  object     object
     * \return            0
     */
    skip_type operator()(const T& object) const
    {
      return 0;
    }
  };
}
 
#endif