/**
 * Query Bus Implementation
 * Handles query execution for read operations
 */
import { Result, ILogger } from '../../core/interfaces/core-abstractions.js';
export interface QueryHandler<TParams = unknown, TResult = unknown> {
    handle(params: TParams): Promise<Result<TResult>>;
}
export declare class QueryBus {
    private logger;
    private handlers;
    constructor(logger: ILogger);
    /**
     * Register a query handler
     */
    register<TParams, TResult>(queryName: string, handler: QueryHandler<TParams, TResult>): void;
    /**
     * Execute a query
     */
    execute<TParams, TResult>(queryName: string, params: TParams): Promise<Result<TResult>>;
    /**
     * Check if a handler is registered
     */
    hasHandler(queryName: string): boolean;
    /**
     * Clear all handlers
     */
    clear(): void;
}
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