import 'reflect-metadata';
import { ChronicleClassOrPropertyDecorator } from '../../types/propertyDecoratorMetadata.js';
import type { UniqueOptions } from './UniqueOptions.js';
interface UniqueMetadata {
    name?: string;
    message?: string;
    /** Normalized event sequence identifiers; omitted means every event sequence. */
    eventSequences?: string[];
}
/**
 * Marks an event class as unique per event source, or an event property as unique across event sources.
 * The optional name defaults to the class or property name. Like the .NET attribute, this decorator
 * does not offer ignore-casing; use a fluent constraint for case-insensitive uniqueness.
 * @param name - Optional shared constraint name.
 * @param message - Optional fixed violation message.
 * @returns A class or public instance field decorator.
 */
export declare function unique(name?: string, message?: string): ChronicleClassOrPropertyDecorator;
/**
 * Marks an event class as unique per event source, or an event property as unique across event sources,
 * optionally applying the constraint only to selected event sequences.
 * @param options - The constraint name, message and event sequences.
 * @returns A class or public instance field decorator.
 */
export declare function unique(options: UniqueOptions): ChronicleClassOrPropertyDecorator;
/** Gets the unique constraint declared on an event class, if present. */
export declare function getUniqueEventMetadata(type: Function): UniqueMetadata | undefined;
/** Gets the unique constraint declared on an event property, if present. */
export declare function getUniquePropertyMetadata(type: Function, property: string): UniqueMetadata | undefined;
export {};
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