A expression item represents the leaf in an expression tree. It is converted to an constant value expression or a field access expression. More...

#include <Expressions.hpp>

Public Member Functions
	ExpressionItem (int8_t value)

	ExpressionItem (uint8_t value)

	ExpressionItem (int16_t value)

	ExpressionItem (uint16_t value)

	ExpressionItem (int32_t value)

	ExpressionItem (uint32_t value)

	ExpressionItem (int64_t value)

	ExpressionItem (uint64_t value)

	ExpressionItem (float value)

	ExpressionItem (double value)

	ExpressionItem (bool value)

	ExpressionItem (const char *value)

	ExpressionItem (std::string const &value)

	ExpressionItem (ValueTypePtr value)

	ExpressionItem (ExpressionNodePtr exp)

	ExpressionItem (ExpressionItem const &)=default

	ExpressionItem (ExpressionItem &&)=default

FieldAssignmentExpressionNodePtr	operator= (ExpressionItem)

FieldAssignmentExpressionNodePtr	operator= (ExpressionNodePtr)

ExpressionNodePtr	getExpressionNode () const
	Gets the expression node of this expression item. More...

	operator ExpressionNodePtr ()

ExpressionItem	as (std::string name)
	Rename the expression item. More...

Detailed Description

A expression item represents the leaf in an expression tree. It is converted to an constant value expression or a field access expression.

Constructor & Destructor Documentation

◆ ExpressionItem() [1/17]

NES::ExpressionItem::ExpressionItem ( int8_t value )

◆ ExpressionItem() [2/17]

NES::ExpressionItem::ExpressionItem ( uint8_t value )

◆ ExpressionItem() [3/17]

NES::ExpressionItem::ExpressionItem ( int16_t value )

◆ ExpressionItem() [4/17]

NES::ExpressionItem::ExpressionItem ( uint16_t value )

◆ ExpressionItem() [5/17]

NES::ExpressionItem::ExpressionItem ( int32_t value )

◆ ExpressionItem() [6/17]

NES::ExpressionItem::ExpressionItem ( uint32_t value )

◆ ExpressionItem() [7/17]

NES::ExpressionItem::ExpressionItem ( int64_t value )

◆ ExpressionItem() [8/17]

NES::ExpressionItem::ExpressionItem ( uint64_t value )

◆ ExpressionItem() [9/17]

NES::ExpressionItem::ExpressionItem ( float value )

◆ ExpressionItem() [10/17]

NES::ExpressionItem::ExpressionItem ( double value )

◆ ExpressionItem() [11/17]

NES::ExpressionItem::ExpressionItem ( bool value )

◆ ExpressionItem() [12/17]

NES::ExpressionItem::ExpressionItem ( const char * value )

◆ ExpressionItem() [13/17]

NES::ExpressionItem::ExpressionItem ( std::string const & value )

◆ ExpressionItem() [14/17]

NES::ExpressionItem::ExpressionItem ( ValueTypePtr value )

◆ ExpressionItem() [15/17]

NES::ExpressionItem::ExpressionItem ( ExpressionNodePtr exp )

◆ ExpressionItem() [16/17]

NES::ExpressionItem::ExpressionItem ( ExpressionItem const & )

default

◆ ExpressionItem() [17/17]

NES::ExpressionItem::ExpressionItem ( ExpressionItem && )

default

Member Function Documentation

◆ as()

ExpressionItem NES::ExpressionItem::as ( std::string name )

Rename the expression item.

Parameters

name	: the new name

Returns: the updated expression item

References backward::details::move(), NES_ERROR, and NES_NOT_IMPLEMENTED.

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◆ getExpressionNode()

ExpressionNodePtr NES::ExpressionItem::getExpressionNode ( ) const

Gets the expression node of this expression item.

Referenced by NES::ABS(), NES::Parsers::NesCEPQueryPlanCreator::addBinaryOperatorToQueryPlan(), NES::CEPOperatorBuilder::And::And(), NES::API::WindowAggregation::as(), NES::API::Avg(), NES::CASE(), NES::CEIL(), NES::COS(), NES::CrossJoinOperatorBuilder::CrossJoin::CrossJoin(), NES::API::EventTime(), NES::EXP(), NES::FLOOR(), NES::Parsers::NesCEPQueryPlanCreator::getAttributeWithFullQualifiedName(), NES::Parsers::NesCEPQueryPlanCreator::getExpressionItem(), NES::getExpressionNodePtr(), NES::LN(), NES::LOG10(), NES::LOG2(), NES::API::Max(), NES::API::Median(), NES::API::Min(), NES::MOD(), NES::operator!(), NES::operator%(), NES::operator*(), NES::operator+(), NES::operator++(), NES::operator-(), NES::operator--(), NES::operator/(), operator=(), NES::POWER(), NES::RADIANS(), NES::API::RecordCreationTs(), NES::ROUND(), NES::SIN(), NES::SQRT(), NES::API::Sum(), NES::TEST_F(), TEST_F(), NES::toExpressionNodePtr(), and NES::WHEN().

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◆ operator ExpressionNodePtr()

NES::ExpressionItem::operator ExpressionNodePtr ( )

◆ operator=() [1/2]

FieldAssignmentExpressionNodePtr NES::ExpressionItem::operator= ( ExpressionItem assignItem )

References getExpressionNode().