/*
 * Copyright (c) 2001-2008
 *     DecisionSoft Limited. All rights reserved.
 * Copyright (c) 2004-2008
 *     Oracle. All rights reserved.
 *
 * 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.
 *
 * $Id: FTUnaryNot.hpp,v 1.6 2008/01/08 18:47:30 jpcs Exp $
 */

#ifndef _FTUNARYNOT_HPP
#define _FTUNARYNOT_HPP

#include <xqilla/fulltext/FTSelection.hpp>

class XQILLA_API FTUnaryNot : public FTSelection
{
public:
  FTUnaryNot(FTSelection *arg, XPath2MemoryManager *memMgr);

  virtual FTSelection *staticResolution(StaticContext *context);
  virtual FTSelection *staticTyping(StaticContext *context);
  virtual FTSelection *optimize(FTContext *context, bool execute) const;
  virtual AllMatches::Ptr execute(FTContext *ftcontext) const;

  const FTSelection *getArgument() const { return arg_; }

private:
  FTSelection *arg_;
};

class FTUnaryNotMatches : public AllMatches
{
public:
  FTUnaryNotMatches(const LocationInfo *info, const AllMatches::Ptr &arg)
    : AllMatches(info), toDo_(true), arg_(arg) {}
  Match::Ptr next(DynamicContext *context);

private:
  bool toDo_;
  AllMatches::Ptr arg_;
};

#endif