/** Interface for async-capable cache storage used by result cache and metadata cache. */
export interface CacheAdapter {
    /**
     * Gets the items under `name` key from the cache.
     */
    get<T = any>(name: string): T | Promise<T | undefined> | undefined;
    /**
     * Sets the item to the cache. `origin` is used for cache invalidation and should reflect the change in data.
     */
    set(name: string, data: any, origin: string, expiration?: number): void | Promise<void>;
    /**
     * Removes the item from cache.
     */
    remove(name: string): void | Promise<void>;
    /**
     * Clears all items stored in the cache.
     */
    clear(): void | Promise<void>;
    /**
     * Called inside `MikroORM.close()` Allows graceful shutdowns (e.g. for redis).
     */
    close?(): void | Promise<void>;
}
/** Synchronous variant of CacheAdapter, used for metadata cache where async access is not needed. */
export interface SyncCacheAdapter extends CacheAdapter {
    /**
     * Gets the items under `name` key from the cache.
     */
    get<T = any>(name: string): T | undefined;
    /**
     * Sets the item to the cache. `origin` is used for cache invalidation and should reflect the change in data.
     */
    set(name: string, data: any, origin: string, expiration?: number): void;
    /**
     * Removes the item from cache.
     */
    remove(name: string): void;
    /**
     * Generates a combined cache from all existing entries.
     */
    combine?(): string | void;
}