import { GenericTypedEntity, ICatalog, Key, PID, SKU, SpecificTypedEntity } from './interfaces';
export declare class Catalog implements ICatalog {
    private mapGeneric;
    private mapSpecific;
    private nameToKey;
    private pidToKeys;
    private skuToKey;
    static fromEntities(genericItems: IterableIterator<GenericTypedEntity>, specificItems: IterableIterator<SpecificTypedEntity>): Catalog;
    static fromCatalog(other: Catalog): Catalog;
    /**
     * @designIntent construct via factories.
     */
    private constructor();
    /**
     * Merge another Catalog into this Catalog.
     */
    merge(other: Catalog): void;
    private mergeItems;
    /**
     * @designNote can't just assign `this.map.has` to `has` because `this`
     * won't be bound correctly.
     */
    hasPID(pid: PID): boolean;
    hasSKU(sku: SKU): boolean;
    getGeneric(pid: PID): GenericTypedEntity;
    getGenericForKey(key: Key): GenericTypedEntity;
    getGenericMap(): Map<PID, GenericTypedEntity>;
    genericEntities(): IterableIterator<GenericTypedEntity>;
    hasKey(key: Key): boolean;
    getKeyForSku(sku: SKU): Key;
    getSpecific(key: Key): SpecificTypedEntity;
    getSpecificFromName(name: string): SpecificTypedEntity;
    getSpecificFromSKU(sku: string): SpecificTypedEntity;
    getSpecificsForGeneric(pid: PID): IterableIterator<Key>;
    specificEntities(): IterableIterator<SpecificTypedEntity>;
}