import { EntityNode } from './entity-node';
export interface IRepository<T> {
    state: string;
    load: (data: EntityNode[]) => void;
    extract: () => EntityNode[];
    find: (key: string) => T;
    filter: (filter: (item: T) => boolean) => T[];
    add: (key: string, item: T) => void;
    addRange: (items: {
        key: string;
        value: T;
    }[]) => void;
    update: (key: string, action: (item: T) => T) => void;
    delete: (key: string) => void;
    markCurrent: () => void;
}
export declare class Repository<T> implements IRepository<T> {
    get state(): string;
    protected _state: string;
    protected data: {
        [key: string]: T;
    };
    load: (data: EntityNode[]) => void;
    extract: () => EntityNode[];
    find: (key: string) => T;
    filter: (filter: (item: T) => boolean) => T[];
    add: (key: string, item: T) => void;
    addRange: (items: {
        key: string;
        value: T;
    }[]) => void;
    update: (key: string, action: (item: T) => T) => void;
    upsert: (key: string, item: T) => void;
    delete: (key: string) => void;
    markCurrent: () => void;
}