HilbertStrategy.h

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/* Frobby: Software for monomial ideal computations.
   Copyright (C) 2007 Bjarke Hammersholt Roune (www.broune.com)
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program 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 General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see http://www.gnu.org/licenses/.
*/
#ifndef HILBERT_STRATEGY_GUARD
#define HILBERT_STRATEGY_GUARD
 
#include <vector>
#include "IndependenceSplitter.h"
#include "SliceStrategyCommon.h"
#include "ElementDeleter.h"
#include "HilbertIndependenceConsumer.h"
 
class HilbertSlice;
class Ideal;
class CoefTermConsumer;
class SliceEvent;
class Slice;
class SplitStrategy;
 
class HilbertStrategy : public SliceStrategyCommon {
 public:
  HilbertStrategy(CoefTermConsumer* consumer,
                  const SplitStrategy* splitStrategy);
 
  virtual void run(const Ideal& ideal);
 
  virtual bool processSlice(TaskEngine& tasks, auto_ptr<Slice> slice);
 
  void freeConsumer(auto_ptr<HilbertIndependenceConsumer> consumer);
 
 private:
  auto_ptr<HilbertIndependenceConsumer> newConsumer();
 
  auto_ptr<HilbertSlice> newHilbertSlice();
  virtual auto_ptr<Slice> allocateSlice();
  virtual bool debugIsValidSlice(Slice* slice);
 
  virtual void getPivot(Term& term, Slice& slice);
 
  IndependenceSplitter _indepSplitter;
  void independenceSplit(auto_ptr<Slice> slice);
 
  vector<HilbertIndependenceConsumer*> _consumerCache;
  ElementDeleter<vector<HilbertIndependenceConsumer*> > _consumerCacheDeleter;
 
  CoefTermConsumer* _consumer;
  bool _useIndependence;
};
 
#endif