attributes_record.h

//
// Copyright (c) 2014 Limit Point Systems, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

// Interface for class attributes_record

#ifndef ATTRIBUTES_RECORD_H
#define ATTRIBUTES_RECORD_H

#ifndef SHEAF_DLL_SPEC_H
#include "SheafSystem/sheaf_dll_spec.h"
#endif

#ifndef VARIABLE_LENGTH_RECORD_H
#include "SheafSystem/variable_length_record.h"
#endif

#ifndef STD_STRING_H
#include "SheafSystem/std_string.h"
#endif

namespace sheaf
{
  
class SHEAF_DLL_SPEC attributes_record : public variable_length_record
{
public:

  typedef char* hdf_buf_type;


  // CANONICAL MEMBERS

  attributes_record(const attributes_record& xother);

  virtual attributes_record* clone() const;

  virtual ~attributes_record();

  virtual bool invariant() const;

  virtual bool is_ancestor_of(const any* other) const;

  // ATTRIBUTES_RECORD INTERFACE

  attributes_record(poset_scaffold& xscaffold);

  void internalize(hdf_buf_type* xhdf_buffer);

  void externalize(hdf_buf_type* xhdf_buffer);

protected:

  void transfer_HDF_to_external_buffer(hdf_buf_type* xbuf);

  void transfer_external_buffer_to_HDF(hdf_buf_type* xbuf);

  virtual void transfer_internal_buffer_to_poset() = 0;

  virtual void transfer_poset_to_internal_buffer() = 0;

  void convert_external_buffer_to_internal_buffer();

  void convert_internal_buffer_to_external_buffer();

  std::string _str_buf;

};
  
} // namespace sheaf


#endif // ifndef ATTRIBUTES_RECORD_SET