iceberg::UnboundPredicateImpl< B > Class Template Reference

Unbound predicates contain unbound terms and must be bound to a concrete schema before they can be evaluated. More...

#include <predicate.h>

Inheritance diagram for iceberg::UnboundPredicateImpl< B >:

Public Member Functions
std::shared_ptr< NamedReference >	reference () override
	Returns the reference of this UnboundPredicate.
std::string	ToString () const override
	Get a user-readable string representation.
Result< std::shared_ptr< Expression > >	Bind (const Schema &schema, bool case_sensitive) const override
	Bind this UnboundPredicate.
Result< std::shared_ptr< Expression > >	Negate () const override
	Negate this UnboundPredicate.
const Term &	unbound_term () const override
	Returns the term of this predicate as a base Term reference.
std::span< const Literal >	literals () const override
	Returns the literals of this predicate.
Public Member Functions inherited from iceberg::UnboundPredicate
bool	is_unbound_predicate () const override
Public Member Functions inherited from iceberg::Expression
virtual bool	Equals (const Expression &other) const
	Returns whether this expression will accept the same values as another.
virtual bool	is_bound_predicate () const
virtual bool	is_unbound_aggregate () const
virtual bool	is_bound_aggregate () const
Public Member Functions inherited from iceberg::Unbound< Expression >
Result< std::shared_ptr< Expression > >	Bind (const Schema &schema) const
	Overloaded Bind method that uses case-sensitive matching by default.
Public Member Functions inherited from iceberg::Predicate< UnboundTerm< B > >
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.

Static Public Member Functions
static Result< std::unique_ptr< UnboundPredicateImpl< B > > >	Make (Expression::Operation op, std::shared_ptr< UnboundTerm< B > > term)
	Create an unbound predicate (unary operation).
static Result< std::unique_ptr< UnboundPredicateImpl< B > > >	Make (Expression::Operation op, std::shared_ptr< UnboundTerm< B > > term, Literal value)
	Create an unbound predicate with a single value.
static Result< std::unique_ptr< UnboundPredicateImpl< B > > >	Make (Expression::Operation op, std::shared_ptr< UnboundTerm< B > > term, std::vector< Literal > values)
	Create an unbound predicate with multiple values.

Additional Inherited Members
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::Predicate< UnboundTerm< B > >
	Predicate (Expression::Operation op, std::shared_ptr< T > term)
	Create a predicate with an operation and term.
Protected Attributes inherited from iceberg::Predicate< UnboundTerm< B > >
Expression::Operation	operation_
std::shared_ptr< T >	term_

Detailed Description

template<typename B>
class iceberg::UnboundPredicateImpl< B >

Unbound predicates contain unbound terms and must be bound to a concrete schema before they can be evaluated.

Template Parameters

B	The bound type this predicate produces when binding is successful

Member Function Documentation

Bind()

template<typename B >

Result< std::shared_ptr< Expression > > iceberg::UnboundPredicateImpl< B >::Bind ( const Schema &  schema, bool  case_sensitive  ) const

overridevirtual

Bind this UnboundPredicate.

Implements iceberg::UnboundPredicate.

literals()

template<typename B >

std::span< const Literal > iceberg::UnboundPredicateImpl< B >::literals ( ) const

inlineoverridevirtual

Returns the literals of this predicate.

Implements iceberg::UnboundPredicate.

Make() [1/3]

template<typename B >

Result< std::unique_ptr< UnboundPredicateImpl< B > > > iceberg::UnboundPredicateImpl< B >::Make ( Expression::Operation  op, std::shared_ptr< UnboundTerm< B > >  term  )

static

Create an unbound predicate (unary operation).

Parameters

op	The operation (kIsNull, kNotNull, kIsNan, kNotNan)
term	The unbound term

Returns

Result containing the unbound predicate or an error

Make() [2/3]

template<typename B >

Result< std::unique_ptr< UnboundPredicateImpl< B > > > iceberg::UnboundPredicateImpl< B >::Make ( Expression::Operation  op, std::shared_ptr< UnboundTerm< B > >  term, Literal  value  )

static

Create an unbound predicate with a single value.

Parameters

op	The operation
term	The unbound term
value	The literal value

Returns

Result containing the unbound predicate or an error

Make() [3/3]

template<typename B >

Result< std::unique_ptr< UnboundPredicateImpl< B > > > iceberg::UnboundPredicateImpl< B >::Make ( Expression::Operation  op, std::shared_ptr< UnboundTerm< B > >  term, std::vector< Literal >  values  )

static

Create an unbound predicate with multiple values.

Parameters

op	The operation (typically kIn or kNotIn)
term	The unbound term
values	Vector of literal values

Returns

Result containing the unbound predicate or an error

Negate()

template<typename B >

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

overridevirtual

Negate this UnboundPredicate.

Implements iceberg::UnboundPredicate.

reference()

template<typename B >

std::shared_ptr< NamedReference > iceberg::UnboundPredicateImpl< B >::reference ( )

inlineoverridevirtual

Returns the reference of this UnboundPredicate.

Implements iceberg::UnboundPredicate.

ToString()

template<typename B >

std::string iceberg::UnboundPredicateImpl< B >::ToString ( ) const

overridevirtual

Get a user-readable string representation.

Reimplemented from iceberg::Expression.

unbound_term()

template<typename B >

const Term & iceberg::UnboundPredicateImpl< B >::unbound_term ( ) const

inlineoverridevirtual

Returns the term of this predicate as a base Term reference.

Implements iceberg::UnboundPredicate.

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

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