/*!
 * Copyright 2020 Ron Buckton
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Disposable } from "@esfx/disposable";
/**
 * Indicates a scope for transactional changes to a `Graph`.
 */
export declare class GraphTransactionScope implements Disposable {
    private static _current?;
    private static _enlistment?;
    private _parent?;
    private _completed;
    private _aborted;
    private _disposed;
    /**
     * Starts a new graph transaction scope, which allows you to
     * conditionally commit or roll-back changes to a `Graph`.
     */
    constructor();
    /**
     * Marks the scope as successfully completed. When the scope
     * is disposed, changes will be committed.
     */
    setComplete(): void;
    /**
     * Disposes of the scope and indicates changes should be committed
     * (if `setComplete()` was called), or rolled back (if `setComplete` was not
     * called).
     */
    dispose(): void;
    /**
     * Disposes of the scope and indicates changes should be committed
     * (if `setComplete()` was called), or rolled back (if `setComplete()` was
     * not called).
     *
     * NOTE: This is an alias for `dispose()`.
     */
    [Disposable.dispose](): void;
    private _commit;
    private _rollback;
}