interface Table.Context<UR,UC>

A context instance for Table implementations that acts as a factory for every instance of this type of collection.

Extends: TableBase.Context<UR,UC,Tp>

Type parameters

Name	Description
UR	the upper row key type bound for which the context can be used
UC	the upper column key type bound for which the context can be used

Properties

_fixedKeys

undocumented

Definition

readonly _fixedKeys: readonly [UR, UC];

Overrides

Context._fixedKeys

_types

undocumented

Definition

readonly _types: Tp;

Overrides

Context._types

columnContext

The context used for the internal column map instances.

Definition

readonly columnContext: (Tp & Row<UR, UC, any>)['columnContext'];

Overrides

Context.columnContext

rowContext

The context used for the internal row map instances.

Definition

readonly rowContext: (Tp & Row<UR, UC, any>)['rowContext'];

Overrides

Context.rowContext

typeTag

A string tag defining the specific collection type

Definition

readonly typeTag: string;

example

HashTableHashColumn.defaultContext().typeTag   // => 'HashTableHashColumn'

Overrides

Context.typeTag

Methods

builder

Returns an empty builder instance for this type of collection and context.

Definition

builder<R extends UR, C extends UC, V>(): WithRow<Tp, R, C, V>['builder'];

Type parameters

Name	Constraints	Description
R	UR
C	UC
V

example

HashTableHashColumn.builder<number, string, boolean>()    // => HashTableHashColumn.Builder<number, string, boolean>

Overrides

Factory.builder

empty

Returns the (singleton) empty instance of this type and context with given key and value types.

Definition

empty<R extends UR, C extends UC, V>(): WithRow<Tp, R, C, V>['normal'];

Type parameters

Name	Constraints	Description
R	UR
C	UC
V

example

HashTableHashColumn.empty<number, string, boolean>()    // => HashTableHashColumn<number, string, boolean>
HashTableHashColumn.empty<string, boolean, number>()    // => HashTableHashColumn<string, boolean, number>

Overrides

Factory.empty

from

Returns an immutable table of this type and context, containing the entries in the given sources StreamSource instances.

Definitions

from<R extends UR, C extends UC, V>(...sources: ArrayNonEmpty<StreamSource.NonEmpty<readonly [R, C, V]>>): WithRow<Tp, R, C, V>['nonEmpty'];

from<R extends UR, C extends UC, V>(...sources: ArrayNonEmpty<StreamSource<readonly [R, C, V]>>): WithRow<Tp, R, C, V>['normal'];

Type parameters

Name	Constraints	Description
R	UR
C	UC
V

Parameters

Name	Type	Description
sources	ArrayNonEmpty<StreamSource.NonEmpty<readonly [R, C, V]>>	an array of StreamSource instances containing row-column-value entries

example

HashTableHashColumn.from([[1, 2, 3], [1, 4, 5]])    // => HashTableHashColumn.NonEmpty<number, number, number>

Overrides

Factory.from

of

Returns an immutable multimap of this collection type and context, containing the given entries.

Definition

of<R extends UR, C extends UC, V>(...entries: ArrayNonEmpty<readonly [R, C, V]>): WithRow<Tp, R, C, V>['nonEmpty'];

Type parameters

Name	Constraints	Description
R	UR
C	UC
V

Parameters

Name	Type	Description
entries	ArrayNonEmpty<readonly [R, C, V]>	a non-empty array of row-column-value entries

example

HashTableHashColumn.of([1, 2, 3], [1, 4, 5])    // => HashTableHashColumn.NonEmpty<number, number, number>

Overrides

Factory.of

reducer

Returns a Reducer that adds received tuples to a Table and returns the Table as a result. When a source is given, the reducer will first create a Table from the source, and then add tuples to it.

Definition

reducer<R extends UR, C extends UC, V>(source?: StreamSource<readonly [R, C, V]>): Reducer<readonly [R, C, V], WithRow<Tp, R, C, V>['normal']>;

Type parameters

Name	Constraints	Description
R	UR
C	UC
V

Parameters

Name	Type	Description
source	StreamSource<readonly [R, C, V]>	(optional) an initial source of tuples to add to

example

const someSource = Table.of([1, 'a', true], [2, 'b', false]);
const result = Stream.of([1, 'c', true], [3, 'a', false]).reduce(Table.reducer(someSource))
result.toArray()   // => [[1, 'c'], [2, 'b'], [3, 'a']]

note

uses a builder under the hood. If the given source is a Table in the same context, it will directly call .toBuilder().

Overrides

Factory.reducer