field_refinement_policy.h

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//
// 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.
//


#ifndef FIELD_REFINEMENT_POLICY_H
#define FIELD_REFINEMENT_POLICY_H

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

#ifndef ANY_H
#include "SheafSystem/any.h"
#endif

#ifndef FIELDS_H
#include "SheafSystem/fields.h"
#endif

namespace sheaf
{
template <class T>
class factory;
}

namespace fields
{

using namespace sheaf;
  
class field_refinement_buffer;

class SHEAF_DLL_SPEC field_refinement_policy : public any
{

  // ===========================================================
  // ===========================================================

public:

  virtual ~field_refinement_policy();

  virtual bool should_refine(field_refinement_buffer& xbuffer,
                             size_type xrefinement_depth) const = 0;

  size_type refinement_depth_ub() const;

  void put_refinement_depth_ub(size_type xub);

  virtual const std::string& class_name() const;

  static const std::string& static_class_name();

  static field_refinement_policy* new_policy(const std::string& xname);

  static factory<field_refinement_policy>& policy_factory();

protected:

  field_refinement_policy(size_type xrefinement_depth_ub);

  field_refinement_policy(const field_refinement_policy& xother);

  size_type _refinement_depth_ub;



  // ===========================================================
  // ===========================================================

public:

  virtual bool is_ancestor_of(const any *other) const;

  virtual field_refinement_policy* clone() const = 0;

  virtual field_refinement_policy& operator=(const field_refinement_policy& xother);

  virtual bool invariant() const;


};

// ===========================================================
// NON-MEMBER FUNCTIONS
// ===========================================================
 
} // namespace fields

#endif // ifndef FIELD_REFINEMENT_POLICY_H