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			134 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
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			134 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/* Copyright (C) 2014 InfiniDB, Inc.
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   This program is free software; you can redistribute it and/or
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   modify it under the terms of the GNU General Public License
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   as published by the Free Software Foundation; version 2 of
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   the License.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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   MA 02110-1301, USA. */
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/***********************************************************************
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 *   $Id: treenodeimpl.h 9210 2013-01-21 14:10:42Z rdempsey $
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 *
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 *
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 ***********************************************************************/
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/** @file */
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#pragma once
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#include <string>
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#include <iosfwd>
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#include "treenode.h"
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namespace messageqcpp
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{
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class ByteStream;
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}
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/**
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 * Namespace
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 */
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namespace execplan
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{
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/** @brief A class to represent a generic TreeNode
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 *
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 * This class is a concrete implementation of the abstract class TreeNode. It's only used to
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 *  hold generic data long enough to parse into specific derrived classes.
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 */
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class TreeNodeImpl : public TreeNode
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{
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 public:
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  /**
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   * Constructors
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   */
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  TreeNodeImpl();
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  explicit TreeNodeImpl(const std::string& sql);
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  // not needed yet
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  // TreeNodeImpl(const TreeNodeImpl& rhs);
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  /**
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   * Destructors
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   */
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  ~TreeNodeImpl() override;
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  /**
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   * Accessor Methods
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   */
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  /**
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   * Operations
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   */
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  const std::string toString() const override;
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  const std::string data() const override
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  {
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    return fData;
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  }
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  void data(const std::string data) override
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  {
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    fData = data;
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  }
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  /** return a copy of this pointer
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   *
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   * deep copy of this pointer and return the copy
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   */
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  inline TreeNodeImpl* clone() const override
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  {
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    return new TreeNodeImpl(*this);
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  }
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  /**
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   * The serialization interface
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   */
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  void serialize(messageqcpp::ByteStream&) const override;
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  void unserialize(messageqcpp::ByteStream&) override;
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  /** @brief Do a deep, strict (as opposed to semantic) equivalence test
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   *
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   * Do a deep, strict (as opposed to semantic) equivalence test.
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   * @return true iff every member of t is a duplicate copy of every member of this; false otherwise
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   */
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  bool operator==(const TreeNode* t) const override;
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  /** @brief Do a deep, strict (as opposed to semantic) equivalence test
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   *
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   * Do a deep, strict (as opposed to semantic) equivalence test.
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   * @return true iff every member of t is a duplicate copy of every member of this; false otherwise
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   */
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  bool operator==(const TreeNodeImpl& t) const;
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  /** @brief Do a deep, strict (as opposed to semantic) equivalence test
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   *
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   * Do a deep, strict (as opposed to semantic) equivalence test.
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   * @return false iff every member of t is a duplicate copy of every member of this; true otherwise
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   */
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  bool operator!=(const TreeNode* t) const override;
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  /** @brief Do a deep, strict (as opposed to semantic) equivalence test
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   *
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   * Do a deep, strict (as opposed to semantic) equivalence test.
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   * @return false iff every member of t is a duplicate copy of every member of this; true otherwise
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   */
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  bool operator!=(const TreeNodeImpl& t) const;
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  std::string toCppCode(IncludeSet& includes) const override;
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 private:
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  // default okay
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  // TreeNodeImpl& operator=(const TreeNodeImpl& rhs);
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  std::string fData;
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};
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std::ostream& operator<<(std::ostream& os, const TreeNodeImpl& rhs);
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}  // namespace execplan
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