import { IRLSContext } from '../interfaces';
/**
 * Row Level Security context manager
 * Enables multi-tenant security and user-based access control
 */
export declare class RLSContextManager {
    private context;
    /**
     * Set RLS context for current operation
     * Context is scoped to this manager instance
     * @param context - RLS context to set
     */
    setContext(context: IRLSContext): void;
    /**
     * Get current RLS context
     * @returns Current context or null if not set
     */
    getContext(): IRLSContext | null;
    /**
     * Clear RLS context
     */
    clearContext(): void;
    /**
     * Execute function with RLS context
     * Restores previous context after execution
     * @template T - Return type of function
     * @param context - RLS context to use
     * @param fn - Function to execute
     * @returns Result of function execution
     */
    withContext<T>(context: IRLSContext, fn: () => Promise<T>): Promise<T>;
    /**
     * Generate PostgreSQL SET statements for RLS
     * These statements set session variables that can be used in RLS policies
     * @returns Array of SQL SET statements
     */
    generateRLSStatements(): string[];
    /**
     * Escape single quotes in values for SQL safety
     * @param value - Value to escape
     * @returns Escaped value
     */
    private escapeValue;
}
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