import { ProjectOptions } from '../../config/interfaces';
import { Model } from '../../model';
import { QueryNode } from '../../query-tree';
import { FlexSearchTokenization } from '../../query-tree/flex-search';
import { DatabaseAdapter, ExecutionArgs, ExecutionResult, FlexSearchTokenizable } from '../database-adapter';
export declare class InMemoryDB {
    collections: {
        [name: string]: ReadonlyArray<any>;
    };
}
export declare class InMemoryAdapter implements DatabaseAdapter {
    private schemaContext?;
    private db;
    private logger;
    constructor(options?: {
        db?: InMemoryDB;
    }, schemaContext?: ProjectOptions | undefined);
    /**
     * Gets the javascript source code for a function that executes a transaction
     * @returns {string}
     */
    private executeQueries;
    execute(queryTree: QueryNode): Promise<any>;
    executeExt(args: ExecutionArgs): Promise<ExecutionResult>;
    updateSchema(model: Model): Promise<void>;
    tokenizeExpressions(tokenizations: ReadonlyArray<FlexSearchTokenizable>): Promise<ReadonlyArray<FlexSearchTokenization>>;
}