JStreamObjectIterator.hh

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#ifndef __JLANG__JSTREAMOBJECTITERATOR__
#define __JLANG__JSTREAMOBJECTITERATOR__

#include <istream>

#include "JLang/JAbstractObjectIterator.hh"


/**
 * \author mdejong
 */

namespace JLANG {}
namespace JPP { using namespace JLANG; }

namespace JLANG {


  /**
   * Stream object iterator.
   *
   * This class implements the JAbstractObjectIterator interface.
   */
  template<class T>
  class JStreamObjectIterator :
    public JAbstractObjectIterator<T>
  {
  public:
    /**
     * Constructor.
     *
     * \param  in         input stream
     */
    JStreamObjectIterator(std::istream& in) :
      __in(in)
    {}


    /**
     * Set object.
     *
     * \param  object     reference to object to be set
     * \return            true if set; else false
     */
    virtual bool setObject(T& object)
    {
      return (bool) (__in && __in >> object);
    }

  protected:
    std::istream& __in;
  };
}

#endif