StringOps_Namespace::StringOpInfo Struct Reference

#include <StringOpInfo.h>

Collaboration diagram for StringOps_Namespace::StringOpInfo:

Public Member Functions
	StringOpInfo (const SqlStringOpKind op_kind, const SQLTypeInfo &return_ti, const LiteralArgMap &literal_arg_map)
const SqlStringOpKind &	getOpKind () const
const LiteralArgMap &	getLiteralArgMap () const
size_t	numLiterals () const
bool	hasVarStringLiteral () const
bool	intLiteralArgAtIdxExists (const size_t index) const
bool	stringLiteralArgAtIdxExists (const size_t index) const
size_t	numNonVariableLiterals () const
const SQLTypeInfo &	getReturnType () const
bool	hasNullLiteralArg () const
std::string	getStringLiteral (const size_t index) const
int64_t	getIntLiteral (const size_t index) const
std::string	toString () const

Static Private Member Functions
static bool	isLiteralArgNull (const SQLTypes datum_type, const Datum &datum)
static size_t	calcNumNullLiteralArgs (const LiteralArgMap &literal_arg_map)

Private Attributes
const SqlStringOpKind	op_kind_
const SQLTypeInfo	return_ti_
const LiteralArgMap	literal_arg_map_
const size_t	num_null_literals_

Friends
std::ostream &	operator<< (std::ostream &stream, const StringOpInfo &string_op_info)

Detailed Description

Definition at line 32 of file StringOpInfo.h.

Constructor & Destructor Documentation

StringOps_Namespace::StringOpInfo::StringOpInfo ( const SqlStringOpKind  op_kind, const SQLTypeInfo &  return_ti, const LiteralArgMap &  literal_arg_map  )

inline

Definition at line 34 of file StringOpInfo.h.

      : op_kind_(op_kind)
      , return_ti_(return_ti)
      , literal_arg_map_(literal_arg_map)
      , num_null_literals_(StringOpInfo::calcNumNullLiteralArgs(literal_arg_map)) {}

Member Function Documentation

size_t StringOps_Namespace::StringOpInfo::calcNumNullLiteralArgs ( const LiteralArgMap &  literal_arg_map )

staticprivate

Definition at line 135 of file StringOpInfo.cpp.

References isLiteralArgNull().

                                                                                {
  size_t num_null_literals{0UL};
  for (const auto& literal_arg : literal_arg_map) {
    const auto& datum_type = literal_arg.second.first;
    const auto& datum = literal_arg.second.second;
    num_null_literals += StringOpInfo::isLiteralArgNull(datum_type, datum) ? 1UL : 0UL;
  }
  return num_null_literals;
}

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int64_t StringOps_Namespace::StringOpInfo::getIntLiteral

(

const size_t

index

)

const

Definition at line 103 of file StringOpInfo.cpp.

References CHECK, extract_int_type_from_datum(), IS_INTEGER, isLiteralArgNull(), and literal_arg_map_.

Referenced by StringOps_Namespace::gen_string_op().

                                                            {
  const auto literal_datum = literal_arg_map_.find(index);
  CHECK(literal_datum != literal_arg_map_.end());
  const auto& datum_type = literal_datum->second.first;
  CHECK(IS_INTEGER(datum_type));
  const auto& datum = literal_datum->second.second;
  CHECK(!StringOpInfo::isLiteralArgNull(datum_type, datum));
  const SQLTypeInfo ti(datum_type, false);
  return extract_int_type_from_datum(datum, ti);
}

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const LiteralArgMap& StringOps_Namespace::StringOpInfo::getLiteralArgMap ( ) const

inline

Definition at line 44 of file StringOpInfo.h.

References literal_arg_map_.

{ return literal_arg_map_; }

const SqlStringOpKind& StringOps_Namespace::StringOpInfo::getOpKind ( ) const

inline

Definition at line 42 of file StringOpInfo.h.

References op_kind_.

Referenced by StringOps_Namespace::gen_string_op(), and StringOps_Namespace::operator<<().

{ return op_kind_; }

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const SQLTypeInfo& StringOps_Namespace::StringOpInfo::getReturnType ( ) const

inline

Definition at line 58 of file StringOpInfo.h.

References return_ti_.

Referenced by StringOps_Namespace::gen_string_op(), and StringOps_Namespace::operator<<().

{ return return_ti_; }

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std::string StringOps_Namespace::StringOpInfo::getStringLiteral

(

const size_t

index

)

const

Definition at line 94 of file StringOpInfo.cpp.

References CHECK, IS_STRING, isLiteralArgNull(), and literal_arg_map_.

Referenced by StringOps_Namespace::gen_string_op().

                                                                 {
  const auto str_literal_datum = literal_arg_map_.find(index);
  CHECK(str_literal_datum != literal_arg_map_.end());
  CHECK(IS_STRING(str_literal_datum->second.first));
  CHECK(!StringOpInfo::isLiteralArgNull(str_literal_datum->second.first,
                                        str_literal_datum->second.second));
  return *str_literal_datum->second.second.stringval;
}

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bool StringOps_Namespace::StringOpInfo::hasNullLiteralArg ( ) const

inline

Definition at line 60 of file StringOpInfo.h.

References num_null_literals_.

Referenced by StringOps_Namespace::apply_string_op_to_literals(), and StringOps_Namespace::gen_string_op().

{ return num_null_literals_ > 0UL; }

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bool StringOps_Namespace::StringOpInfo::hasVarStringLiteral ( ) const

inline

Definition at line 48 of file StringOpInfo.h.

References stringLiteralArgAtIdxExists().

Referenced by StringOps_Namespace::apply_numeric_op_to_literals(), StringOps_Namespace::apply_string_op_to_literals(), StringOps_Namespace::gen_string_op(), and numNonVariableLiterals().

{ return stringLiteralArgAtIdxExists(0); }

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bool StringOps_Namespace::StringOpInfo::intLiteralArgAtIdxExists

(

const size_t

index

)

const

Definition at line 76 of file StringOpInfo.cpp.

References CHECK, IS_INTEGER, and literal_arg_map_.

Referenced by StringOps_Namespace::gen_string_op().

                                                                    {
  const auto literal_itr = literal_arg_map_.find(index);
  if (literal_itr == literal_arg_map_.end()) {
    return false;
  }
  CHECK(IS_INTEGER(literal_itr->second.first));
  return true;
}

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bool StringOps_Namespace::StringOpInfo::isLiteralArgNull ( const SQLTypes  datum_type, const Datum &  datum  )

staticprivate

Definition at line 120 of file StringOpInfo.cpp.

References Datum::bigintval, CHECK, IS_INTEGER, SQLTypeInfo::is_null(), IS_STRING, kNULLT, and Datum::stringval.

Referenced by calcNumNullLiteralArgs(), getIntLiteral(), getStringLiteral(), and StringOps_Namespace::operator<<().

                                                                                 {
  if (datum_type == kNULLT) {
    CHECK(datum.bigintval == 0);
    return true;
  }
  if (IS_INTEGER(datum_type)) {
    const SQLTypeInfo ti(datum_type, false);
    return ti.is_null(datum);
  }
  CHECK(IS_STRING(datum_type));
  // Currently null strings are empty strings
  // Todo(todd): is this expressed centrally somewhere else in the codebase?
  return datum.stringval == nullptr ? 1UL : 0UL;
}

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size_t StringOps_Namespace::StringOpInfo::numLiterals ( ) const

inline

Definition at line 46 of file StringOpInfo.h.

References literal_arg_map_.

Referenced by StringOps_Namespace::gen_string_op().

{ return literal_arg_map_.size(); }

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size_t StringOps_Namespace::StringOpInfo::numNonVariableLiterals ( ) const

inline

Definition at line 54 of file StringOpInfo.h.

References hasVarStringLiteral(), and literal_arg_map_.

Referenced by StringOps_Namespace::gen_string_op().

                                        {
    return literal_arg_map_.size() - (hasVarStringLiteral() ? 1UL : 0UL);
  }

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bool StringOps_Namespace::StringOpInfo::stringLiteralArgAtIdxExists

(

const size_t

index

)

const

Definition at line 85 of file StringOpInfo.cpp.

References CHECK, IS_STRING, and literal_arg_map_.

Referenced by hasVarStringLiteral().

                                                                       {
  const auto literal_itr = literal_arg_map_.find(index);
  if (literal_itr == literal_arg_map_.end()) {
    return false;
  }
  CHECK(IS_STRING(literal_itr->second.first));
  return true;
}

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std::string StringOps_Namespace::StringOpInfo::toString

(

)

const

Definition at line 114 of file StringOpInfo.cpp.

                                       {
  std::ostringstream oss;
  oss << *this;
  return oss.str();
}

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  stream, const StringOpInfo &  string_op_info  )

friend

Definition at line 24 of file StringOpInfo.cpp.

                                                                               {
  stream << "StringOp("
         << "operator: " << string_op_info.getOpKind()
         << "return_ti: " << toString(string_op_info.getReturnType().get_type())
         << " dim: " << string_op_info.getReturnType().get_dimension()
         << " scale: " << string_op_info.getReturnType().get_scale() << ", literals: [";
  bool first_elem = true;
  for (const auto& literal_arg : string_op_info.literal_arg_map_) {
    if (!first_elem) {
      stream << ", ";
    }
    first_elem = false;
    const auto datum_type = literal_arg.second.first;
    const auto& datum = literal_arg.second.second;
    stream << "{slot: " << literal_arg.first /* slot/idx */ << ", type: "
           << ::toString(datum_type) << ", value: ";
    if (string_op_info.isLiteralArgNull(datum_type, literal_arg.second.second)) {
      stream << "NULL";
    } else if (IS_STRING(datum_type)) {
      stream << *datum.stringval;
    } else {
      CHECK(IS_INTEGER(datum_type));
      const SQLTypeInfo ti(datum_type, false);
      stream << extract_int_type_from_datum(datum, ti);
    }
    stream << "}";
  }
  stream << "]";
  return stream;
}

Member Data Documentation

const LiteralArgMap StringOps_Namespace::StringOpInfo::literal_arg_map_

private

Definition at line 78 of file StringOpInfo.h.

Referenced by getIntLiteral(), getLiteralArgMap(), getStringLiteral(), intLiteralArgAtIdxExists(), numLiterals(), numNonVariableLiterals(), StringOps_Namespace::operator<<(), and stringLiteralArgAtIdxExists().

const size_t StringOps_Namespace::StringOpInfo::num_null_literals_

private

Definition at line 79 of file StringOpInfo.h.

Referenced by hasNullLiteralArg().

const SqlStringOpKind StringOps_Namespace::StringOpInfo::op_kind_

private

Definition at line 76 of file StringOpInfo.h.

Referenced by getOpKind().

const SQLTypeInfo StringOps_Namespace::StringOpInfo::return_ti_

private

Definition at line 77 of file StringOpInfo.h.

Referenced by getReturnType().

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The documentation for this struct was generated from the following files:

• /home/jenkins-slave/workspace/core-os-doxygen/StringOps/StringOpInfo.h
• /home/jenkins-slave/workspace/core-os-doxygen/StringOps/StringOpInfo.cpp