Struct Table

pub struct Table { /* private fields */ }

A table in a database.

Contains both the metadata and the actual data.

Implementations

impl Table

pub fn new_row(&mut self, data: Vec<Value>) -> &mut Self

Add a new row of data to the table.

Note: validation is not implemented yet and the return type is subject to change.

pub fn all_data(&self) -> Vec<Row>

Retrieve a copy of all of the table’s non-internal data.

pub fn name(&self) -> &BoundedString

The table’s name.

pub fn columns(&self) -> impl Iterator<Item = &Column>

The table’s (non-internal) columns.

pub fn num_columns(&self) -> usize

Number of non-internal columns.

pub fn add_column(&mut self, column: Column) -> &mut Self

Add a new column to the table.

Note: this does not yet modify any of the rows. They must be kept consistent externally using add_column_data.

pub fn add_column_data( &mut self, col_name: &BoundedString, data: Vec<Value>, ) -> Result<&mut Self, RuntimeError>

Add data for a new column to all rows.

pub fn get_column_data( &self, col_name: &BoundedString, ) -> Result<Vec<Value>, RuntimeError>

Retrieve all data of a column.

pub fn rename(&mut self, new_name: BoundedString)

Rename the table.

pub fn is_empty(&self) -> bool

Whether the table has no rows.

pub fn has_no_columns(&self) -> bool

Whether the table has no defined columns.

Trait Implementations

impl Clone for Table

fn clone(&self) -> Table

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Table

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Table

Available on crate feature terminal-output only.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.