import { EntityManager } from '../../entity-manager/EntityManager';
import { DataSource } from '../../data-source/DataSource';
import { QueryRunner } from '../../query-runner/QueryRunner';

/**
 * TransactionRollbackEvent is an object that broadcaster sends to the entity subscriber on transaction rollback.
 */
export interface TransactionRollbackEvent {
	/**
	 * Connection used in the event.
	 */
	connection: DataSource;

	/**
	 * QueryRunner used in the event transaction.
	 * All database operations in the subscribed event listener should be performed using this query runner instance.
	 */
	queryRunner: QueryRunner;

	/**
	 * EntityManager used in the event transaction.
	 * All database operations in the subscribed event listener should be performed using this entity manager instance.
	 */
	manager: EntityManager;
}