iceberg::BoundUnaryPredicate Class Reference

Bound unary predicate (null, not-null, etc.). More...

#include <predicate.h>

Inheritance diagram for iceberg::BoundUnaryPredicate:

Public Member Functions
Result< bool >	Test (const Literal &value) const override
	Test a value against this predicate.
Kind	kind () const override
	Returns the kind of this bound predicate.
std::string	ToString () const override
	Get a user-readable string representation.
Result< std::shared_ptr< Expression > >	Negate () const override
	Returns the negation of this expression, equivalent to not(this).
bool	Equals (const Expression &other) const override
	Returns whether this expression will accept the same values as another.
Public Member Functions inherited from iceberg::BoundPredicate
std::shared_ptr< BoundReference >	reference () override
	Returns the underlying bound reference for this term.
Result< Literal >	Evaluate (const StructLike &data) const override
	Evaluate this expression against a row-based data.
bool	is_bound_predicate () const override
Public Member Functions inherited from iceberg::Predicate< BoundTerm >
Expression::Operation	op () const override
	Returns the operation for an expression node.
const std::shared_ptr< T > &	term () const
	Returns the term this predicate tests.
Public Member Functions inherited from iceberg::Expression
std::string	ToString () const override
	Get a user-readable string representation.
virtual bool	is_unbound_predicate () const
virtual bool	is_unbound_aggregate () const
virtual bool	is_bound_aggregate () const

Static Public Member Functions
static Result< std::unique_ptr< BoundUnaryPredicate > >	Make (Expression::Operation op, std::shared_ptr< BoundTerm > term)
	Create a bound unary predicate.

Additional Inherited Members
Public Types inherited from iceberg::BoundPredicate
enum class	Kind : int8_t { kUnary = 0 , kLiteral , kSet }
Public Types inherited from iceberg::Expression
enum class	Operation {   kTrue , kFalse , kIsNull , kNotNull ,   kIsNan , kNotNan , kLt , kLtEq ,   kGt , kGtEq , kEq , kNotEq ,   kIn , kNotIn , kNot , kAnd ,   kOr , kStartsWith , kNotStartsWith , kCount ,   kCountNull , kCountStar , kMax , kMin }
	Operation types for expressions.
Protected Member Functions inherited from iceberg::BoundPredicate
	BoundPredicate (Expression::Operation op, std::shared_ptr< BoundTerm > term)
Protected Member Functions inherited from iceberg::Predicate< BoundTerm >
	Predicate (Expression::Operation op, std::shared_ptr< T > term)
	Create a predicate with an operation and term.
Protected Attributes inherited from iceberg::Predicate< BoundTerm >
Expression::Operation	operation_
std::shared_ptr< T >	term_

Detailed Description

Bound unary predicate (null, not-null, etc.).

Member Function Documentation

Equals()

bool iceberg::BoundUnaryPredicate::Equals ( const Expression &  other ) const

overridevirtual

Returns whether this expression will accept the same values as another.

Parameters

other

another expression

Returns

true if the expressions are equivalent

Reimplemented from iceberg::Expression.

kind()

Kind iceberg::BoundUnaryPredicate::kind ( ) const

inlineoverridevirtual

Returns the kind of this bound predicate.

Implements iceberg::BoundPredicate.

Make()

Result< std::unique_ptr< BoundUnaryPredicate > > iceberg::BoundUnaryPredicate::Make ( Expression::Operation  op, std::shared_ptr< BoundTerm >  term  )

static

Create a bound unary predicate.

Parameters

op	The unary operation (kIsNull, kNotNull, kIsNan, kNotNan)
term	The bound term to test

Returns

Result containing the bound unary predicate or an error

Negate()

Result< std::shared_ptr< Expression > > iceberg::BoundUnaryPredicate::Negate ( ) const

overridevirtual

Returns the negation of this expression, equivalent to not(this).

Reimplemented from iceberg::Expression.

Test()

Result< bool > iceberg::BoundUnaryPredicate::Test ( const Literal &  value ) const

overridevirtual

Test a value against this predicate.

Parameters

value

The literal value to test

Returns

true if the predicate passes, false otherwise

Implements iceberg::BoundPredicate.

ToString()

std::string iceberg::BoundUnaryPredicate::ToString ( ) const

overridevirtual

Get a user-readable string representation.

Implements iceberg::util::Formattable.

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

• iceberg/expression/predicate.h
• iceberg/expression/predicate.cc