harperdb/resources/transactionBroadcast.d.ts

HarperDB is a distributed database, caching service, streaming broker, and application development platform focused on performance and ease of use.

import { IterableEventQueue } from './IterableEventQueue';
/**
 * This module/function is responsible for the main work of tracking subscriptions and listening for new transactions
 * that have occurred on any thread, and then reading through the transaction log to notify listeners. This is
 * responsible for cleanup of subscriptions as well.
 * @param path
 * @param dbi
 * @param key
 * @param listener
 */
export declare function addSubscription(table: any, key: any, listener?: (key: any) => any, start_time: number, options: any): Subscription;
/**
 * This is the class that is returned from subscribe calls and provide the interface to set a callback, end the
 * subscription and get the initial state.
 */
declare class Subscription extends IterableEventQueue {
    listener: (key: any) => any;
    subscriptions: [];
    startTime?: number;
    constructor(listener: any);
    end(): void;
    toJSON(): {
        name: string;
    };
}
/**
 * Interface with lmdb-js to listen for commits and traverse the audit log.
 * @param primary_store
 */
export declare function listenToCommits(primary_store: any, audit_store: any): void;
export declare function whenNextTransaction(audit_store: any): any;
export {};