/* Copyright (C) 2014 InfiniDB, Inc.

   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; version 2 of
   the License.

   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, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

//  $Id: functor_all.h 3495 2013-01-21 14:09:51Z rdempsey $

/** @file */

#ifndef FUNCTOR_ALL_H
#define FUNCTOR_ALL_H

#include "functor.h"


namespace funcexp
{

/** @brief Func_All class
  *    For function that can retun all supported types.
  *        Must implement getIntVal(), getDoubleVal(), and getStrVal()
  *        Implement any other methods that behave differently from the default.
  *    Note: implementation based on result type will be more efficient.
  */
class Func_All : public Func
{
public:
	Func_All() {}
	Func_All(const std::string& funcName) : Func(funcName) {}
	virtual ~Func_All() {}

/*
	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct) = 0;

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct) = 0;

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct) = 0;
*/
};


/** @brief Func_simple_case class
  */
class Func_simple_case : public Func_All
{
public:
	Func_simple_case():Func_All("case_simple") {}
	virtual ~Func_simple_case() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_searched_case class
  */
class Func_searched_case : public Func_All
{
public:
	Func_searched_case():Func_All("case_searched") {}
	virtual ~Func_searched_case() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_if class
  */
class Func_if : public Func_All
{
public:
	Func_if() : Func_All("Func_if") {}
	virtual ~Func_if() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_ifnull class
  */
class Func_ifnull : public Func_All
{
public:
	Func_ifnull() : Func_All("ifnull") {}
	virtual ~Func_ifnull() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	bool getBoolVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_greatest class
  */
class Func_greatest : public Func_All
{
public:
	Func_greatest() : Func_All("greatest") {}
	virtual ~Func_greatest() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

    uint64_t getUintVal(rowgroup::Row& row,
                        FunctionParm& fp,
                        bool& isNull,
                        execplan::CalpontSystemCatalog::ColType& op_ct);

    double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

    int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_least class
  */
class Func_least : public Func_All
{
public:
	Func_least() : Func_All("least") {}
	virtual ~Func_least() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

    int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

    int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_coalesce class
  */
class Func_coalesce : public Func_All
{
public:
	Func_coalesce() : Func_All("coalesce") {}
	virtual ~Func_coalesce() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);
};


/** @brief Func_nullif class
  */
class Func_nullif : public Func_All
{
public:
	Func_nullif() : Func_All("nullif") {}
	virtual ~Func_nullif() {}

	execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);

	std::string getStrVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int32_t getDateIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getDatetimeIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	int64_t getIntVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

    uint64_t getUintVal(rowgroup::Row& row,
                        FunctionParm& fp,
                        bool& isNull,
                        execplan::CalpontSystemCatalog::ColType& op_ct);

	double getDoubleVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

	execplan::IDB_Decimal getDecimalVal(rowgroup::Row& row,
						FunctionParm& fp,
						bool& isNull,
						execplan::CalpontSystemCatalog::ColType& op_ct);

};


}

#endif