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xxxxxxxxxx//# CalHistoryBuffer.h: Calibration table cal_history buffer//# Copyright (C) 1996,1997,1998,2001,2003//# Associated Universities, Inc. Washington DC, USA.//#//# This library is free software; you can redistribute it and/or modify it//# under the terms of the GNU Library General Public License as published by//# the Free Software Foundation; either version 2 of the License, or (at your//# option) any later version.//#//# This library is distributed in the hope that it will be useful, but WITHOUT//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public//# License for more details.//#//# You should have received a copy of the GNU Library General Public License//# along with this library; if not, write to the Free Software Foundation,//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.//#//# Correspondence concerning AIPS++ should be adressed as follows://# Internet email: aips2-request@nrao.edu.//# Postal address: AIPS++ Project Office//# National Radio Astronomy Observatory//# 520 Edgemont Road//# Charlottesville, VA 22903-2475 USA//#//#//# $Id$namespace casa { //# NAMESPACE CASA - BEGIN// <summary> // CalHistoryBuffer: Calibration table cal_history buffer// </summary>// <use visibility=export>// <reviewed reviewer="" date="" tests="" demos="">// <prerequisite>// <li> <linkto class="CalTable">CalTable</linkto> module// <li> <linkto class="CalIterBase">CalIterBase</linkto> module// </prerequisite>//// <etymology>// From "calibration history sub-table" and "buffer"// </etymology>//// <synopsis>// The CalHistoryBuffer class holds a buffer for the cal_history// sub-table, optionally connected to a calibration table // iterator (of base type CalIterBase). // </synopsis>//// <example>// <srcblock>// </srcblock>// </example>//// <motivation>// Encapsulate calibration table cal_history data buffer.// </motivation>//// <todo asof="01/12/26">// (i) Deal with non-standard columns.// </todo>class CalHistoryBuffer { public: // Default constructor. No connection to an underlying // calibration table iterator in this case. CalHistoryBuffer(); // Construct from a calibration table iterator. The calibration // buffer will remain synchronized with the iterator. CalHistoryBuffer (CalIterBase& calIter); // Default destructor virtual ~CalHistoryBuffer(); // Invalidate the current calibration buffer. This signals // that a re-read is required as the iterator has advanced. virtual void invalidate();