Bdb packages | Design docs | Source docs | Guidelines | Recent releases
	Search | Site Map .

                 

---

/CdbBdbShared/CdbBdbSTimeLineInterval.hh

Go to the documentation of this file.

#ifndef CDBBDBSHARED_TIMELINE_INTERVAL_HH
#define CDBBDBSHARED_TIMELINE_INTERVAL_HH

//-----------------------------------------------------------------------------
//
// File and Version Information:
//      $Id: CdbBdbSTimeLineInterval.hh,v 1.3 2002/05/09 20:49:33 gapon Exp $
//
// Description:
//      Class CdbBdbSTimeLineInterval. Objects of this embedded class represent
//      intervals in the "TimeLine" data structure.
//
//      This is a template class, whose only template parameter lets to specify
//      the actual contents (payload) of the interval.
//
//      The template parameter "V" is expected to provide the following public
//      interface:
//
//      - default constructor
//      - copy constructor
//      - non-virtual destructor
//      - assignment operator
//  
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Author List:
//      Igor A. Gaponenko               Original author
//
// Copyright Information:
//      Copyright (C) 2002              Lawrence Berkeley Laboratory
//
//-----------------------------------------------------------------------------

//--------------------
// Database Headers --
//--------------------

#include "BdbUtil/Bdb.hh"

//-------------------------------
// Collaborating Class Headers --
//-------------------------------

#include "CdbBase/CdbCommon.hh"

#include "BdbTime/BdbTime.hh"

//---------------
// C++ Headers --
//---------------

#include <iostream.h>

/// Objects of this class represent "TimeLine" intervals
/**
  * This is an embedded class, whose interface 
  */
template< class V >
class CdbBdbSTimeLineInterval {

public:

  /// Normal & also default constructor
  /**
    */
    explicit CdbBdbSTimeLineInterval( const BdbTime& theBegin = BdbTime::minusInfinity,
                                      const BdbTime& theEnd   = BdbTime::minusInfinity ) :
        begin(theBegin),
        end  (theEnd)
    { }

  /// Normal constructor requering non default value
  /**
    */
    explicit CdbBdbSTimeLineInterval( const V&       theValue,
                                      const BdbTime& theBegin = BdbTime::minusInfinity,
                                      const BdbTime& theEnd   = BdbTime::minusInfinity ) :
        value(theValue),
        begin(theBegin),
        end  (theEnd)
    { }

  /// Copy constructor
  /**
    */
    CdbBdbSTimeLineInterval( const CdbBdbSTimeLineInterval<V>& theInterval ) :
        value(theInterval.value),
        begin(theInterval.begin),
        end  (theInterval.end)
    { }

  /// The destructor
  /**
    * NOTE: The destructor is NOT virtual because this is an embedded
    *       class.
    */
    ~CdbBdbSTimeLineInterval( ) { }

  /// The assignment operator
  /**
    */
    CdbBdbSTimeLineInterval& operator=( const CdbBdbSTimeLineInterval<V>& theInterval )
    {
        if( this != &theInterval ) {
            value = theInterval.value;
            begin = theInterval.begin;
            end   = theInterval.end;
        }
        return *this;
    }

public:

  // The actual payload of the interval

    V value;

  // The meta-data information:

    BdbTime begin;      // Begin of the "validity" period
    BdbTime end;        // End   of the "validity" period
};

template< class V >
inline
ostream&
operator<<( ostream&                          o,
            const CdbBdbSTimeLineInterval<V>& theInterval )
{
    o << "[ " << theInterval.begin.getGmtSec( ) << "." << theInterval.begin.getGmtNsec( ) << " , "
      <<         theInterval.end.getGmtSec( )   << "." << theInterval.end.getGmtNsec( )   << " ) "
      << theInterval.value << endl;
    return o;
}

#endif  // CDBBDBSHARED_TIMELINE_INTERVAL_HH

 

---

BaBar Public Site | SLAC | News | Links | Who's Who | Contact Us

Page Owner: Jacek Becla
Last Update: October 04, 2002