ARow.cpp

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// ------------------------------------------------------------------------
// $RCSfile: ARow.cpp,v $
// ------------------------------------------------------------------------
// $Revision: 1.3 $
// ------------------------------------------------------------------------
// Copyright: see Copyright.readme
// ------------------------------------------------------------------------
//
// Class: ARow
//   Expression class. Generates a list of values from a TABLE() function.
//
// ------------------------------------------------------------------------
//
// $Date: 2002/01/22 15:16:02 $
// $Author: jsberg $
//
// ------------------------------------------------------------------------
 
#include "Expressions/ARow.h"
#include "AbstractObjects/Table.h"
 
#include <iostream>
 
 
// Class ARow
// ------------------------------------------------------------------------
 
namespace Expressions {
 
    ARow::ARow(const ARow &rhs):
        OArray<double>(rhs), tabName(rhs.tabName), position(rhs.position),
        columns(rhs.columns)
    {}
 
 
    ARow::ARow(const std::string &tName, const PlaceRep &row,
               const std::vector<std::string> &cols):
        OArray<double>(), tabName(tName), position(row), columns(cols)
    {}
 
 
    ARow::~ARow()
    {}
 
 
    OArray<double> *ARow::clone() const {
        return new ARow(*this);
    }
 
 
    std::vector<double> ARow::evaluate() const {
        Table *table = Table::find(tabName);
        table->fill();
        return table->getRow(position, columns);
    }
 
 
    void ARow::print(std::ostream &os, int) const {
        os << "ROW(" << tabName << ',' << position << ",{";
        std::vector<std::string>::const_iterator i = columns.begin();
 
        while(i != columns.end()) {
            os << '"' << *i << '"';
            if(++i == columns.end()) break;
            os << ',';
        }
        os << "})";
    }
 
}