cudf::detail::table_view_base< ColumnView > Class Template Reference

Base class for a table of ColumnViews. More...

#include <table_view.hpp>

Public Types
using	iterator = decltype(std::begin(_columns))
	Iterator type for the table.
using	const_iterator = decltype(std::cbegin(_columns))
	const iterator type for the table

Public Member Functions
	table_view_base (std::vector< ColumnView > const &cols)
	Construct a table from a vector of column views. More...
iterator	begin () noexcept
	Returns an iterator to the first view in the table. More...
const_iterator	begin () const noexcept
	Returns an iterator to the first view in the table. More...
iterator	end () noexcept
	Returns an iterator one past the last column view in the table. More...
const_iterator	end () const noexcept
	Returns an iterator one past the last column view in the table. More...
ColumnView const &	column (size_type column_index) const
	Returns a reference to the view of the specified column. More...
size_type	num_columns () const noexcept
	Returns the number of columns. More...
size_type	num_rows () const noexcept
	Returns the number of rows. More...
size_type	is_empty () const noexcept
	Returns true if num_columns() returns zero, or false otherwise. More...
	table_view_base (table_view_base const &)=default
	Copy constructor.
	table_view_base (table_view_base &&)=default
	Move constructor.
table_view_base &	operator= (table_view_base const &)=default
	Copy assignment operator. More...
table_view_base &	operator= (table_view_base &&)=default
	Move assignment operator. More...

Detailed Description

template<typename ColumnView>
class cudf::detail::table_view_base< ColumnView >

Base class for a table of ColumnViews.

This class should not be used directly. Instead:

• table_view should be used for a table of columns of type column_view
• mutable_table_view should be used for a table of columns of type mutable_column_view

All public constructors and member functions of table_view_base are available in both table_view and mutable_table_view.

Template Parameters

ColumnView

The type of column view the table contains: expects column_view or mutable_column_view

Definition at line 52 of file table_view.hpp.

Constructor & Destructor Documentation

table_view_base()

template<typename ColumnView >

cudf::detail::table_view_base< ColumnView >::table_view_base ( std::vector< ColumnView > const &  cols )

explicit

Construct a table from a vector of column views.

Note

Because a std::vector is constructible from a std::initializer_list, this constructor also supports the following usage:

column_view c0, c1, c2;
...
table_view t{{c0,c1,c2}}; // Creates a `table` from c0, c1, c2

Exceptions

cudf::logic_error

If all views do not have the same size

Parameters

cols	The vector of columns to construct the table from

Member Function Documentation

begin() [1/2]

template<typename ColumnView >

const_iterator cudf::detail::table_view_base< ColumnView >::begin ( ) const

inlinenoexcept

Returns an iterator to the first view in the table.

Returns

An iterator to the first view in the table

Definition at line 96 of file table_view.hpp.

begin() [2/2]

template<typename ColumnView >

iterator cudf::detail::table_view_base< ColumnView >::begin ( )

inlinenoexcept

Returns an iterator to the first view in the table.

Returns

An iterator to the first column_view

Definition at line 89 of file table_view.hpp.

column()

template<typename ColumnView >

ColumnView const& cudf::detail::table_view_base< ColumnView >::column ( size_type  column_index ) const

inline

Returns a reference to the view of the specified column.

Exceptions

std::out_of_range

If column_index is out of the range [0, num_columns)

Parameters

column_index

The index of the desired column

Returns

A reference to the desired column

Definition at line 127 of file table_view.hpp.

end() [1/2]

template<typename ColumnView >

const_iterator cudf::detail::table_view_base< ColumnView >::end ( ) const

inlinenoexcept

Returns an iterator one past the last column view in the table.

end() acts as a place holder. Attempting to dereference it results in undefined behavior.

Returns

An iterator to one past the last column view in the table

Definition at line 116 of file table_view.hpp.

end() [2/2]

template<typename ColumnView >

iterator cudf::detail::table_view_base< ColumnView >::end ( )

inlinenoexcept

Returns an iterator one past the last column view in the table.

end() acts as a place holder. Attempting to dereference it results in undefined behavior.

Returns

An iterator to one past the last column view in the table

Definition at line 106 of file table_view.hpp.

is_empty()

template<typename ColumnView >

size_type cudf::detail::table_view_base< ColumnView >::is_empty ( ) const

inlinenoexcept

Returns true if num_columns() returns zero, or false otherwise.

Returns

True if num_columns() returns zero, or false otherwise

Definition at line 151 of file table_view.hpp.

num_columns()

template<typename ColumnView >

size_type cudf::detail::table_view_base< ColumnView >::num_columns ( ) const

inlinenoexcept

Returns the number of columns.

Returns

The number of columns

Definition at line 137 of file table_view.hpp.

num_rows()

template<typename ColumnView >

size_type cudf::detail::table_view_base< ColumnView >::num_rows ( ) const

inlinenoexcept

Returns the number of rows.

Returns

The number of rows

Definition at line 144 of file table_view.hpp.

operator=() [1/2]

template<typename ColumnView >

table_view_base& cudf::detail::table_view_base< ColumnView >::operator= ( table_view_base< ColumnView > &&  )

default

Move assignment operator.

Returns

Reference to this object (after transferring ownership)

operator=() [2/2]

template<typename ColumnView >

table_view_base& cudf::detail::table_view_base< ColumnView >::operator= ( table_view_base< ColumnView > const &  )

default

Copy assignment operator.

Returns

Reference to this object

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

• table_view.hpp