CachedSequence.h

// -*- mode: c++; c-basic-offset:4 -*-
 
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
 
// Copyright (c) 2016 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
 
#ifndef _cached_sequence_h
#define _cached_sequence_h 1
 
#include <libdap/Sequence.h>
 
namespace libdap {
class ConstraintEvaluator;
class DDS;
class Marshaller;
}
 
// namespace bes {

class CachedSequence: public libdap::Sequence
{
private:
protected:
    unsigned int d_value_index;
 
    void load_prototypes_with_values(libdap::BaseTypeRow &btr, bool safe = true);
 
public:
    CachedSequence(const string &n) : Sequence(n), d_value_index(0) { }

    CachedSequence(const string &n, const string &d) : Sequence(n, d), d_value_index(0) { }

    CachedSequence(const CachedSequence &rhs) : Sequence(rhs), d_value_index(0) { }
 
    virtual ~CachedSequence() { }
 
    virtual BaseType *ptr_duplicate() { return new CachedSequence(*this); }
 
    CachedSequence &operator=(const CachedSequence &rhs) {
        if (this == &rhs)
            return *this;
 
        static_cast<Sequence &>(*this) = rhs; // run Sequence=
 
        return *this;
    }
 
    virtual bool read_row(int row, libdap::DDS &dds, libdap::ConstraintEvaluator &eval, bool ce_eval);
 
    virtual void intern_data(libdap::ConstraintEvaluator &eval, libdap::DDS &dds);
    virtual bool serialize(libdap::ConstraintEvaluator &eval, libdap::DDS &dds, libdap::Marshaller &m, bool ce_eval = true);
 
    virtual void dump(ostream &strm) const;
};
 
// } // namespace bes
 
#endif //_cached_sequence_h