/**
 * In-Memory Storage Layer
 *
 * Implements high-performance in-memory storage for the Hybrid Storage Manager
 * with compression, persistence, and garbage collection capabilities.
 */
import { EventEmitter } from 'events';
import { StorageInterface, StorageLayer, StorageLayerHealth, QueryContext, QueryResult, InMemoryStorageConfig } from './types';
export declare class InMemoryStorageLayer extends EventEmitter implements StorageInterface {
    private config;
    readonly layer = StorageLayer.IN_MEMORY;
    private storage;
    private indexes;
    private isInitialized;
    private gcTimer;
    private persistenceTimer;
    private metrics;
    constructor(config: InMemoryStorageConfig);
    /**
     * Initialize the in-memory storage layer
     */
    initialize(): Promise<void>;
    /**
     * Execute a query against in-memory storage
     */
    query<T = any>(query: string, params?: Record<string, any>, context?: QueryContext): Promise<QueryResult<T>>;
    /**
     * Create a new record in memory
     */
    create(data: any, _context?: QueryContext): Promise<QueryResult<any>>;
    /**
     * Update a record in memory
     */
    update(id: string, data: any, _context?: QueryContext): Promise<QueryResult<any>>;
    /**
     * Delete a record from memory
     */
    delete(id: string, _context?: QueryContext): Promise<QueryResult<boolean>>;
    /**
     * Perform health check
     */
    healthCheck(): Promise<StorageLayerHealth>;
    /**
     * Get storage metrics
     */
    getMetrics(): Promise<Record<string, any>>;
    /**
     * Shutdown the in-memory storage layer
     */
    shutdown(): Promise<void>;
    private executeQuery;
    private parseQuery;
    private tokenizeQuery;
    private parseSelectQuery;
    private parseConditions;
    private normalizeOperator;
    private parseValue;
    private parseFindQuery;
    private parseGetQuery;
    private parseCountQuery;
    private parseAggregateQuery;
    private parseFlexibleQuery;
    private validateQuery;
    private optimizeQuery;
    private executeOptimizedQuery;
    private executeSelectQuery;
    private executeFindQuery;
    private executeGetQuery;
    private executeCountQuery;
    private executeAggregateQuery;
    private matchesConditions;
    private evaluateCondition;
    private extractSearchableText;
    private selectFields;
    private applyOrdering;
    private generateId;
    private calculateSize;
    private getMemoryUsage;
    private compress;
    private decompress;
    private updateIndexes;
    private removeFromIndexes;
    private setupGarbageCollection;
    private runGarbageCollection;
    private setupPersistence;
    private loadFromPersistence;
    private saveToPersistence;
    private updateMetrics;
}
export default InMemoryStorageLayer;
//# sourceMappingURL=InMemoryStorageLayer.d.ts.map