@launchdarkly/js-server-sdk-common/dist/store/PersistentDataStoreWrapper.d.ts

LaunchDarkly Server SDK for JavaScript - common code

import { DataKind, PersistentDataStore } from '../api/interfaces';
import { LDFeatureStore, LDFeatureStoreDataStorage, LDFeatureStoreItem, LDFeatureStoreKindData, LDKeyedFeatureStoreItem } from '../api/subsystems';
/**
 * Internal implementation of {@link LDFeatureStore} that delegates the basic functionality to an
 * instance of {@link PersistentDataStore}. It provides optional caching behavior and other logic
 * that would otherwise be repeated in every data store implementation. This makes it easier to
 * create new database integrations by implementing only the database-specific logic.
 */
export default class PersistentDataStoreWrapper implements LDFeatureStore {
    private readonly _core;
    private _isInitialized;
    /**
     * Cache for storing individual items.
     */
    private _itemCache;
    /**
     * Cache for storing all items of a type.
     */
    private _allItemsCache;
    /**
     * Used to preserve order of operations of async requests.
     */
    private _queue;
    constructor(_core: PersistentDataStore, ttl: number);
    init(allData: LDFeatureStoreDataStorage, callback: () => void): void;
    get(kind: DataKind, key: string, callback: (res: LDFeatureStoreItem | null) => void): void;
    initialized(callback: (isInitialized: boolean) => void): void;
    all(kind: DataKind, callback: (res: LDFeatureStoreKindData) => void): void;
    upsert(kind: DataKind, data: LDKeyedFeatureStoreItem, callback: () => void): void;
    delete(kind: DataKind, key: string, version: number, callback: () => void): void;
    close(): void;
    getDescription(): string;
}
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