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CdbPathNameItr.hh

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#ifndef CDB_PATH_NAME_ITR_HH
#define CDB_PATH_NAME_ITR_HH

// File and Version Information:
//      $Id: CdbPathNameItr.hh,v 1.4 2005/07/26 00:06:26 gapon Exp $

#include "CdbBase/CdbIItr.hh"
#include "CdbBase/CdbPathName.hh"

/// This class facilitates path name operations
/**
  * This implementation of the iterator makes its own private
  * copy of the collection (a path whose elements are meant
  * to be iterated).
  */
class CdbPathNameItr : public CdbIItr<CdbPathName> {

public:

  /// The default constructor
  /**
    * Initializes an iterator at the invalid state.
    *
    * @see CdbPathNameItr::IsValid()
    */
    CdbPathNameItr( );

  /// The normal constructor
  /**
    * Initialize the iterator.
    */
    CdbPathNameItr( const CdbPathName& thePath );

  /// The copy constructor
  /**
    * The constructed iterator borrows (not _shares_) the state of
    * the specified iterator.
    */
    CdbPathNameItr( const CdbPathNameItr& theItr );

  /// The destructor

    virtual ~CdbPathNameItr( );

  /// The assignment operator
  /**
    * The constructed iterator borrows (not _shares_) the state of
    * the specified iterator.
    */
    CdbPathNameItr& operator=( const CdbPathNameItr& theItr );

  /// Reset an iterator to its initial state.
  /**
    * Implements the corresponding method of the base class.
    *
    * @see CdbIItr::reset()
    */
    virtual CdbStatus reset( );

  /// Advance an iterator to the next position.
  /**
    * Implements the corresponding method of the base class.
    *
    * @see CdbIItr::next()
    */
    virtual bool next( );

  /// Obtain the currently reffered value.
  /**
    * Implements the corresponding method of the base class.
    *
    * @see CdbIItr::value()
    */
    virtual CdbPathName value( );

  /// Check if an iterator is valid.
  /**
    * Implements the corresponding method of the base class.
    *
    * @see CdbIItr::isValid()
    */
    virtual bool isValid( );

  /// Make a clone of itself
  /**
    * Implements the corresponding method of the base class.
    *
    * @see CdbIItr::clone()
    */
    virtual CdbIItr<CdbPathName>* clone( ) const;

private:

    bool _isValid;
    bool _isEverAdvanced;

    CdbPathName _myPath;

    unsigned int _current;
};

#endif  // CDB_PATH_NAME_ITR_HH

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