You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
30 lines
1.4 KiB
30 lines
1.4 KiB
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
import { Observable } from 'rxjs';
|
|
import { CollectionViewer } from './collection-viewer';
|
|
export declare abstract class DataSource<T> {
|
|
/**
|
|
* Connects a collection viewer (such as a data-table) to this data source. Note that
|
|
* the stream provided will be accessed during change detection and should not directly change
|
|
* values that are bound in template views.
|
|
* @param collectionViewer The component that exposes a view over the data provided by this
|
|
* data source.
|
|
* @returns Observable that emits a new value when the data changes.
|
|
*/
|
|
abstract connect(collectionViewer: CollectionViewer): Observable<readonly T[]>;
|
|
/**
|
|
* Disconnects a collection viewer (such as a data-table) from this data source. Can be used
|
|
* to perform any clean-up or tear-down operations when a view is being destroyed.
|
|
*
|
|
* @param collectionViewer The component that exposes a view over the data provided by this
|
|
* data source.
|
|
*/
|
|
abstract disconnect(collectionViewer: CollectionViewer): void;
|
|
}
|
|
/** Checks whether an object is a data source. */
|
|
export declare function isDataSource(value: any): value is DataSource<any>;
|