import { ModificationActions } from './relation';
import { Spec, SpecType } from './spec';
import { AttributeBuilder, NormalType } from './attribute';
export interface JoinSpecBuilder<J extends SpecType> {
    attribute: AttributeBuilder<J['fields']>;
    multicolumnUniqueIndex(...fields: (keyof J['fields'])[]): void;
}
export interface JoinKey<N extends string> {
    name: N;
    type?: NormalType;
    primary?: boolean;
}
export interface JoineeOptions<J extends SpecType, S extends SpecType, T extends SpecType> {
    spec: Spec<S>;
    aliasOnJoin: keyof J['records'];
    aliasOnTarget: keyof T['sets'];
    key: JoinKey<keyof J['fields']>;
    onDelete?: ModificationActions;
    onUpdate?: ModificationActions;
}
export declare function validateJoinee<J extends SpecType, S extends SpecType, T extends SpecType>(options: JoineeOptions<J, S, T>): void;
export interface CreateJoinSpecOptions<J extends SpecType, F extends SpecType, S extends SpecType> {
    name: J['name'];
    scope: string;
    firstJoinee: JoineeOptions<J, F, S>;
    secondJoinee: JoineeOptions<J, S, F>;
}
export declare function createJoinSpec<J extends SpecType = SpecType, F extends SpecType = SpecType, S extends SpecType = SpecType>(options: CreateJoinSpecOptions<J, F, S>, initializer?: (specBuilder: JoinSpecBuilder<J>) => void): Spec<J>;