cudf::table Class Reference

A set of cudf::column's of the same size. More...

#include <table.hpp>

Public Member Functions
	table (table &&)=default
table &	operator= (table const &)=delete
table &	operator= (table &&)=delete
	table (table const &other)
	Construct a new table by copying the contents of another table.
	table (std::vector< std::unique_ptr< column >> &&columns)
	Moves the contents from a vector of unique_ptrs to columns to construct a new table. More...
	table (table_view view, rmm::cuda_stream_view stream=rmm::cuda_stream_default, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
	Copy the contents of a table_view to construct a new table. More...
size_type	num_columns () const noexcept
	Returns the number of columns in the table.
size_type	num_rows () const noexcept
	Returns the number of rows.
table_view	view () const
	Returns an immutable, non-owning table_view of the contents of this table.
	operator table_view () const
	Conversion operator to an immutable, non-owning table_view of the contents of this table.
mutable_table_view	mutable_view ()
	Returns a mutable, non-owning mutable_table_view of the contents of this table.
	operator mutable_table_view ()
	Conversion operator to a mutable, non-owning mutable_table_view of the contents of this table.
std::vector< std::unique_ptr< column > >	release ()
	Releases ownership of the columns by returning a vector of unique_ptrs to the constituent columns. More...
table_view	select (std::vector< cudf::size_type > const &column_indices) const
	Returns a table_view with set of specified columns. More...
column &	get_column (cudf::size_type column_index)
	Returns a reference to the specified column. More...
column const &	get_column (cudf::size_type i) const
	Returns a const reference to the specified column. More...

Detailed Description

A set of cudf::column's of the same size.

Definition at line 38 of file table.hpp.

Constructor & Destructor Documentation

table() [1/2]

cudf::table::table

(

std::vector< std::unique_ptr< column >> &&

columns

)

Moves the contents from a vector of unique_ptrs to columns to construct a new table.

Parameters

columns

The vector of unique_ptrs to columns whose contents will be moved into the new table.

table() [2/2]

cudf::table::table	(	table_view	view,
		rmm::cuda_stream_view	stream = rmm::cuda_stream_default,
		rmm::mr::device_memory_resource *	mr = rmm::mr::get_current_device_resource()
	)

Copy the contents of a table_view to construct a new table.

Parameters

view	The view whose contents will be copied to create a new table
stream	CUDA stream used for device memory operations.
mr	Device memory resource used for allocating the device memory for the new columns

Member Function Documentation

get_column() [1/2]

column& cudf::table::get_column ( cudf::size_type  column_index )

inline

Returns a reference to the specified column.

Exceptions

std::out_of_range

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

Parameters

i	Index of the desired column

Returns

A reference to the desired column

Definition at line 134 of file table.hpp.

get_column() [2/2]

column const& cudf::table::get_column ( cudf::size_type  i ) const

inline

Returns a const reference to the specified column.

Exceptions

std::out_of_range

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

Parameters

i	Index of the desired column

Returns

A const reference to the desired column

Definition at line 145 of file table.hpp.

release()

std::vector<std::unique_ptr<column> > cudf::table::release

(

)

Releases ownership of the columns by returning a vector of unique_ptrs to the constituent columns.

After release(), num_columns() == 0 and num_rows() == 0

select()

table_view cudf::table::select

(

std::vector< cudf::size_type > const &

column_indices

)

const

Returns a table_view with set of specified columns.

Exceptions

std::out_of_range

If any element in column_indices is outside [0, num_columns())

Parameters

column_indices

Indices of columns in the table

Returns

A table_view consisting of columns from the original table specified by the elements of column_indices

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

• table.hpp