/**
 * RDF Files Storage Layer
 *
 * Implements RDF file-based storage for the Hybrid Storage Manager
 * with file watching, backup capabilities, and TTL parsing.
 */
import { EventEmitter } from 'events';
import { StorageInterface, StorageLayer, StorageLayerHealth, QueryContext, QueryResult, RDFStorageConfig } from './types';
export declare class RDFStorageLayer extends EventEmitter implements StorageInterface {
    private config;
    readonly layer = StorageLayer.RDF_FILES;
    private files;
    private watcher;
    private syncTimer;
    private isInitialized;
    private metrics;
    constructor(config: RDFStorageConfig);
    /**
     * Initialize the RDF storage layer
     */
    initialize(): Promise<void>;
    /**
     * Execute a query against RDF files
     */
    query<T = any>(query: string, params?: Record<string, any>, context?: QueryContext): Promise<QueryResult<T>>;
    /**
     * Create a new RDF file
     */
    create(data: any, _context?: QueryContext): Promise<QueryResult<any>>;
    /**
     * Update an RDF file
     */
    update(filePath: string, data: any, _context?: QueryContext): Promise<QueryResult<any>>;
    /**
     * Delete an RDF file
     */
    delete(filePath: string, _context?: QueryContext): Promise<QueryResult<boolean>>;
    /**
     * Perform health check
     */
    healthCheck(): Promise<StorageLayerHealth>;
    /**
     * Get storage metrics
     */
    getMetrics(): Promise<Record<string, any>>;
    /**
     * Shutdown the RDF storage layer
     */
    shutdown(): Promise<void>;
    private loadRDFFiles;
    private setupFileWatcher;
    private handleFileChange;
    private setupSyncTimer;
    private syncFiles;
    private executeRDFQuery;
    private matchesQuery;
    private parseTTL;
    private convertToTTL;
    private generateFileName;
    private createBackup;
    private updateFileMetrics;
    private updateMetrics;
}
export default RDFStorageLayer;
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