import { DispatcherPayloadMeta } from "../DispatcherPayloadMeta";
import { DebugId } from "../instrument/AlminAbstractPerfMarker";
import { DispatchedPayload } from "../Dispatcher";
import { Events } from "../Events";
/**
 * Commitment is a tuple of payload and meta.
 * It is a minimal unit of transaction.
 *
 * Notes: Why commitment is object?
 * commitment is collect as array at once.
 * Pass it StoreGroup directly.
 * If use ...arguments, it has spread cost by transpiler.
 *
 */
export declare type Commitment = {
    payload: DispatchedPayload;
    meta: DispatcherPayloadMeta;
    debugId: DebugId;
};
/**
 * Unit of work committing target
 */
export interface Committable {
    commit(commitment: Commitment): void;
}
export declare type UnitOfWorkEvent = Commitment;
export declare class UnitOfWork extends Events<UnitOfWorkEvent> {
    private commitments;
    private committable;
    id: string;
    isDisposed: boolean;
    /**
     * @param {Committable} committable it is often StoreGroup
     */
    constructor(committable: Committable);
    get size(): number;
    addCommitment(commitment: Commitment): void;
    onAddedCommitment(handler: (commitment: Commitment) => void): import("../Events").EventDisposable;
    commit(): void;
    prune(): void;
    release(): void;
}