RexLiteral Class Reference

#include <RelAlgDagBuilder.h>

Inheritance diagram for RexLiteral:

Collaboration diagram for RexLiteral:

Public Member Functions
	RexLiteral (const int64_t val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned type_scale, const unsigned type_precision)
	RexLiteral (const double val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned type_scale, const unsigned type_precision)
	RexLiteral (const std::string &val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned type_scale, const unsigned type_precision)
	RexLiteral (const bool val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned type_scale, const unsigned type_precision)
	RexLiteral (const SQLTypes target_type)
template<class T >
T	getVal () const
SQLTypes	getType () const
SQLTypes	getTargetType () const
unsigned	getScale () const
unsigned	getPrecision () const
unsigned	getTypeScale () const
unsigned	getTypePrecision () const
std::string	toString () const override
std::unique_ptr< RexLiteral >	deepCopy () const
Public Member Functions inherited from Rex
virtual	~Rex ()

Private Attributes
const boost::variant< int64_t, double, std::string, bool, void * >	literal_
const SQLTypes	type_
const SQLTypes	target_type_
const unsigned	scale_
const unsigned	precision_
const unsigned	type_scale_
const unsigned	type_precision_

Detailed Description

Definition at line 68 of file RelAlgDagBuilder.h.

Constructor & Destructor Documentation

RexLiteral() [1/5]

RexLiteral::RexLiteral ( const int64_t  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  type_scale, const unsigned  type_precision  )

inline

Definition at line 70 of file RelAlgDagBuilder.h.

References CHECK, is_datetime(), kBIGINT, kDECIMAL, kINT, kINTERVAL_DAY_TIME, and kINTERVAL_YEAR_MONTH.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , type_scale_(type_scale)
      , type_precision_(type_precision) {
    CHECK(type == kDECIMAL || type == kINTERVAL_DAY_TIME ||
          type == kINTERVAL_YEAR_MONTH || is_datetime(type) || type == kBIGINT ||
          type == kINT);
  }

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RexLiteral() [2/5]

RexLiteral::RexLiteral ( const double  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  type_scale, const unsigned  type_precision  )

inline

Definition at line 89 of file RelAlgDagBuilder.h.

References CHECK_EQ, and kDOUBLE.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , type_scale_(type_scale)
      , type_precision_(type_precision) {
    CHECK_EQ(kDOUBLE, type);
  }

RexLiteral() [3/5]

RexLiteral::RexLiteral ( const std::string &  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  type_scale, const unsigned  type_precision  )

inline

Definition at line 106 of file RelAlgDagBuilder.h.

References CHECK_EQ, and kTEXT.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , type_scale_(type_scale)
      , type_precision_(type_precision) {
    CHECK_EQ(kTEXT, type);
  }

RexLiteral() [4/5]

RexLiteral::RexLiteral ( const bool  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  type_scale, const unsigned  type_precision  )

inline

Definition at line 123 of file RelAlgDagBuilder.h.

References CHECK_EQ, and kBOOLEAN.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , type_scale_(type_scale)
      , type_precision_(type_precision) {
    CHECK_EQ(kBOOLEAN, type);
  }

RexLiteral() [5/5]

RexLiteral::RexLiteral ( const SQLTypes  target_type )

inline

Definition at line 140 of file RelAlgDagBuilder.h.

      : literal_(nullptr)
      , type_(kNULLT)
      , target_type_(target_type)
      , scale_(0)
      , precision_(0)
      , type_scale_(0)
      , type_precision_(0) {}

Member Function Documentation

deepCopy()

std::unique_ptr<RexLiteral> RexLiteral::deepCopy ( ) const

inline

Definition at line 179 of file RelAlgDagBuilder.h.

References CHECK.

                                             {
    switch (literal_.which()) {
      case 0: {
        int64_t val = getVal<int64_t>();
        return std::make_unique<RexLiteral>(
            val, type_, target_type_, scale_, precision_, type_scale_, type_precision_);
      }
      case 1: {
        double val = getVal<double>();
        return std::make_unique<RexLiteral>(
            val, type_, target_type_, scale_, precision_, type_scale_, type_precision_);
      }
      case 2: {
        auto val = getVal<std::string>();
        return std::make_unique<RexLiteral>(
            val, type_, target_type_, scale_, precision_, type_scale_, type_precision_);
      }
      case 3: {
        bool val = getVal<bool>();
        return std::make_unique<RexLiteral>(
            val, type_, target_type_, scale_, precision_, type_scale_, type_precision_);
      }
      case 4: {
        return std::make_unique<RexLiteral>(target_type_);
      }
      default:
        CHECK(false);
    }
    return nullptr;
  }

getPrecision()

unsigned RexLiteral::getPrecision ( ) const

inline

Definition at line 162 of file RelAlgDagBuilder.h.

{ return precision_; }

getScale()

unsigned RexLiteral::getScale ( ) const

inline

Definition at line 160 of file RelAlgDagBuilder.h.

{ return scale_; }

getTargetType()

SQLTypes RexLiteral::getTargetType ( ) const

inline

Definition at line 158 of file RelAlgDagBuilder.h.

{ return target_type_; }

getType()

SQLTypes RexLiteral::getType ( ) const

inline

Definition at line 156 of file RelAlgDagBuilder.h.

{ return type_; }

getTypePrecision()

unsigned RexLiteral::getTypePrecision ( ) const

inline

Definition at line 166 of file RelAlgDagBuilder.h.

{ return type_precision_; }

getTypeScale()

unsigned RexLiteral::getTypeScale ( ) const

inline

Definition at line 164 of file RelAlgDagBuilder.h.

{ return type_scale_; }

getVal()

template<class T >

T RexLiteral::getVal ( ) const

inline

Definition at line 150 of file RelAlgDagBuilder.h.

References CHECK.

                   {
    const auto ptr = boost::get<T>(&literal_);
    CHECK(ptr);
    return *ptr;
  }

toString()

std::string RexLiteral::toString ( ) const

inlineoverridevirtual

Implements Rex.

Definition at line 168 of file RelAlgDagBuilder.h.

References cat(), kNULLT, and Rex::toString().

                                      {
    return cat(::typeName(this),
               "(",
               boost::lexical_cast<std::string>(literal_),
               ", type=",
               (type_ == kNULLT ? "null" : ::toString(type_)),
               ", target_type=",
               (target_type_ == kNULLT ? "null" : ::toString(target_type_)),
               ")");
  }

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Member Data Documentation

literal_

const boost::variant<int64_t, double, std::string, bool, void*> RexLiteral::literal_

private

Definition at line 211 of file RelAlgDagBuilder.h.

precision_

const unsigned RexLiteral::precision_

private

Definition at line 215 of file RelAlgDagBuilder.h.

scale_

const unsigned RexLiteral::scale_

private

Definition at line 214 of file RelAlgDagBuilder.h.

target_type_

const SQLTypes RexLiteral::target_type_

private

Definition at line 213 of file RelAlgDagBuilder.h.

type_

const SQLTypes RexLiteral::type_

private

Definition at line 212 of file RelAlgDagBuilder.h.

type_precision_

const unsigned RexLiteral::type_precision_

private

Definition at line 217 of file RelAlgDagBuilder.h.

type_scale_

const unsigned RexLiteral::type_scale_

private

Definition at line 216 of file RelAlgDagBuilder.h.

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/RelAlgDagBuilder.h