eckit::sql::expression::SQLExpression class

#include <eckit/sql/expression/SQLExpression.h>

Derived classes

class ColumnExpression

class ConstantExpression

class Expressions

class NumberExpression

class ParameterExpression

class SQLExpressionEvaluated

class StringExpression

class FunctionExpression

Public static functions

static auto number(double) -> std::shared_ptr<SQLExpression>

Constructors, destructors, conversion operators

SQLExpression()

~SQLExpression() virtual

Public functions

void preprepare(SQLSelect&) virtual

void prepare(SQLSelect&) pure virtual

void updateType(SQLSelect&) virtual

void cleanup(SQLSelect&) pure virtual

auto eval(bool& missing) const -> double pure virtual

void eval(double* out, bool& missing) const virtual

auto evalAsString(bool& missing) const -> std::string virtual

auto andSplit(expression::Expressions&) -> bool virtual

void tables(std::set<const SQLTable*>&) virtual

auto isConstant() const -> bool pure virtual

auto isNumber() const -> bool virtual

auto simplify(bool&) -> std::shared_ptr<SQLExpression> virtual

void title(const std::string&) virtual

auto title() const -> std::string virtual

auto type() const -> const type::SQLType* pure virtual

auto clone() const -> std::shared_ptr<SQLExpression> pure virtual

auto reshift(int minColumnShift) const -> std::shared_ptr<SQLExpression> pure virtual

auto isAggregate() const -> bool virtual

void output(SQLOutput&) const virtual

void partialResult() virtual

void expandStars(const std::vector<std::reference_wrapper<const SQLTable>>&, expression::Expressions&) virtual

auto isBitfield() const -> bool virtual

auto bitfieldDef() const -> BitfieldDef

auto hasMissingValue() const -> bool virtual

auto missingValue() const -> double

void print(std::ostream&) const pure virtual

auto shared_from_this(T... args) -> T

auto weak_from_this(T... args) -> T

Friends

auto operator<<(std::ostream& s, const SQLExpression& p) -> std::ostream&

Function documentation