QMcBeaver: QMCCorrelationFunctionFactory.cpp Source File

00001 //            QMcBeaver
00002 //
00003 //         Constructed by 
00004 //
00005 //     Michael Todd Feldmann 
00006 //              and 
00007 //   David Randall "Chip" Kent IV
00008 //
00009 // Copyright 2000.  All rights reserved.
00010 //
00011 // drkent@users.sourceforge.net mtfeldmann@users.sourceforge.net
00012 
00013 #include "QMCCorrelationFunctionFactory.h"
00014 #include "Cambridge2CorrelationFunction.h"
00015 #include "Umrigar2CorrelationFunction.h"
00016 #include "Yukawa2CorrelationFunction.h"
00017 #include "Williamson2CorrelationFunction.h"
00018 #include "Anderson2CorrelationFunction.h"
00019 
00020 QMCCorrelationFunction * 
00021   QMCCorrelationFunctionFactory::correlationFunctionFactory(string & Type)
00022 {
00023   QMCCorrelationFunction * CorrelationFunction = 0;
00024   if( Type == "None" )
00025     {
00026       CorrelationFunction = new ZeroCorrelationFunction();
00027     }
00028   else if( Type == "Pade" )
00029     {
00030       CorrelationFunction = new PadeCorrelationFunction();
00031     }
00032   else if( Type == "FixedCuspPade" )
00033     {
00034       CorrelationFunction = new FixedCuspPadeCorrelationFunction();
00035     }
00036   else if( Type == "Cambridge2" )
00037     {
00038       CorrelationFunction = new Cambridge2CorrelationFunction();
00039     }
00040   else if( Type == "Umrigar2" )
00041     {
00042       CorrelationFunction = new Umrigar2CorrelationFunction();
00043     }
00044   else if( Type == "Yukawa" )
00045     {
00046       CorrelationFunction = new Yukawa2CorrelationFunction();
00047     }
00048   else if( Type == "Williamson" )
00049     {
00050       CorrelationFunction = new Williamson2CorrelationFunction();
00051     }
00052   else if( Type == "Anderson" )
00053     {
00054       CorrelationFunction = new Anderson2CorrelationFunction();
00055     }
00056   else if( Type == "Julius" )
00057     {
00058       CorrelationFunction = new JuliusCorrelationFunction();
00059     }
00060   else
00061     {
00062       cerr << "ERROR: Unknown correlation function type (" 
00063            << Type
00064            << ") being assigned in QMCCorrelationFunctionFactory!" << endl;
00065       exit(0);
00066     }
00067 
00068   return CorrelationFunction;
00069 }