Visitor for bound expressions. More...

#include <expression_visitor.h>

Inheritance diagram for iceberg::BoundVisitor< R >:

Public Member Functions
virtual Result< R >	IsNull (const std::shared_ptr< Bound > &expr)=0
	Visit an IS_NULL bound expression.

virtual Result< R >	NotNull (const std::shared_ptr< Bound > &expr)=0
	Visit a NOT_NULL bound expression.

virtual Result< R >	IsNaN (const std::shared_ptr< Bound > &expr)
	Visit an IS_NAN bound expression.

virtual Result< R >	NotNaN (const std::shared_ptr< Bound > &expr)
	Visit a NOT_NAN bound expression.

virtual Result< R >	Lt (const std::shared_ptr< Bound > &expr, const Literal &lit)=0
	Visit a less-than bound expression.

virtual Result< R >	LtEq (const std::shared_ptr< Bound > &expr, const Literal &lit)=0
	Visit a less-than-or-equal bound expression.

virtual Result< R >	Gt (const std::shared_ptr< Bound > &expr, const Literal &lit)=0
	Visit a greater-than bound expression.

virtual Result< R >	GtEq (const std::shared_ptr< Bound > &expr, const Literal &lit)=0
	Visit a greater-than-or-equal bound expression.

virtual Result< R >	Eq (const std::shared_ptr< Bound > &expr, const Literal &lit)=0
	Visit an equality bound expression.

virtual Result< R >	NotEq (const std::shared_ptr< Bound > &expr, const Literal &lit)=0
	Visit a not-equal bound expression.

virtual Result< R >	StartsWith (const std::shared_ptr< Bound > &expr, const Literal &lit)
	Visit a starts-with bound expression.

virtual Result< R >	NotStartsWith (const std::shared_ptr< Bound > &expr, const Literal &lit)
	Visit a not-starts-with bound expression.

virtual Result< R >	In (const std::shared_ptr< Bound > &expr, const BoundSetPredicate::LiteralSet &literal_set)
	Visit an IN set bound expression.

virtual Result< R >	NotIn (const std::shared_ptr< Bound > &expr, const BoundSetPredicate::LiteralSet &literal_set)
	Visit a NOT_IN set bound expression.

Result< R >	Predicate (const std::shared_ptr< BoundPredicate > &pred) override
	Visit a bound predicate.

Result< R >	Predicate (const std::shared_ptr< UnboundPredicate > &pred) override
	Visit an unbound predicate.

Public Member Functions inherited from iceberg::ExpressionVisitor< R >
virtual Result< R >	AlwaysTrue ()=0
	Visit a True expression (always evaluates to true).

virtual Result< R >	AlwaysFalse ()=0
	Visit a False expression (always evaluates to false).

virtual Result< R >	Not (ParamType child_result)=0
	Visit a Not expression.

virtual Result< R >	And (ParamType left_result, ParamType right_result)=0
	Visit an And expression.

virtual Result< R >	Or (ParamType left_result, ParamType right_result)=0
	Visit an Or expression.

virtual Result< R >	Aggregate (const std::shared_ptr< BoundAggregate > &aggregate)
	Visit a bound aggregate.

virtual Result< R >	Aggregate (const std::shared_ptr< UnboundAggregate > &aggregate)
	Visit an unbound aggregate.

Detailed Description

template<typename R>
class iceberg::BoundVisitor< R >

Visitor for bound expressions.

This visitor is for traversing bound expression trees.

Template Parameters

R	The return type produced by visitor methods

Member Function Documentation

◆ Eq()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::Eq	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

pure virtual

Visit an equality bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to compare against

◆ Gt()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::Gt	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

pure virtual

Visit a greater-than bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to compare against

◆ GtEq()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::GtEq	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

pure virtual

Visit a greater-than-or-equal bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to compare against

◆ In()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::In	(	const std::shared_ptr< Bound > &	expr,
		const BoundSetPredicate::LiteralSet &	literal_set
	)

inlinevirtual

Visit an IN set bound expression.

Parameters

expr	The bound expression being tested
literal_set	The set of literal values to test membership

◆ IsNaN()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::IsNaN ( const std::shared_ptr< Bound > & expr )

inlinevirtual

Visit an IS_NAN bound expression.

Parameters

expr	The bound expression being tested

◆ IsNull()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::IsNull ( const std::shared_ptr< Bound > & expr )

pure virtual

Visit an IS_NULL bound expression.

Parameters

expr	The bound expression being tested

◆ Lt()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::Lt	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

pure virtual

Visit a less-than bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to compare against

◆ LtEq()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::LtEq	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

pure virtual

Visit a less-than-or-equal bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to compare against

◆ NotEq()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::NotEq	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

pure virtual

Visit a not-equal bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to compare against

◆ NotIn()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::NotIn	(	const std::shared_ptr< Bound > &	expr,
		const BoundSetPredicate::LiteralSet &	literal_set
	)

inlinevirtual

Visit a NOT_IN set bound expression.

Parameters

expr	The bound expression being tested
literal_set	The set of literal values to test membership

◆ NotNaN()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::NotNaN ( const std::shared_ptr< Bound > & expr )

inlinevirtual

Visit a NOT_NAN bound expression.

Parameters

expr	The bound expression being tested

◆ NotNull()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::NotNull ( const std::shared_ptr< Bound > & expr )

pure virtual

Visit a NOT_NULL bound expression.

Parameters

expr	The bound expression being tested

◆ NotStartsWith()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::NotStartsWith	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

inlinevirtual

Visit a not-starts-with bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to check for prefix match

◆ Predicate() [1/2]

template<typename R >

Result< R > iceberg::BoundVisitor< R >::Predicate ( const std::shared_ptr< BoundPredicate > & pred )

inlineoverridevirtual

Visit a bound predicate.

This method dispatches to specific visitor methods based on the predicate type and operation.

Parameters

pred	The bound predicate to visit

Implements iceberg::ExpressionVisitor< R >.

◆ Predicate() [2/2]

template<typename R >

Result< R > iceberg::BoundVisitor< R >::Predicate ( const std::shared_ptr< UnboundPredicate > & pred )

inlineoverridevirtual

Visit an unbound predicate.

Parameters

pred	The unbound predicate

Implements iceberg::ExpressionVisitor< R >.

◆ StartsWith()

template<typename R >

virtual Result< R > iceberg::BoundVisitor< R >::StartsWith	(	const std::shared_ptr< Bound > &	expr,
		const Literal &	lit
	)

inlinevirtual

Visit a starts-with bound expression.

Parameters

expr	The bound expression being tested
lit	The literal value to check for prefix match

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

iceberg/expression/expression_visitor.h

Public Member Functions

Detailed Description

Member Function Documentation

◆ Eq()

◆ Gt()

◆ GtEq()

◆ In()

◆ IsNaN()

◆ IsNull()

◆ Lt()

◆ LtEq()

◆ NotEq()

◆ NotIn()

◆ NotNaN()

◆ NotNull()

◆ NotStartsWith()

◆ Predicate() [1/2]

◆ Predicate() [2/2]

◆ StartsWith()