import { GenericType } from "../../Common/Type";
import { IExpression } from "../../ExpressionBuilder/Expression/IExpression";
import { IColumnExpression } from "./IColumnExpression";
import { IEntityExpression } from "./IEntityExpression";
export declare class ComputedColumnExpression<TE = any, T = any> implements IColumnExpression<TE, T> {
    entity: IEntityExpression<TE>;
    expression: IExpression;
    propertyName: keyof TE;
    alias?: string;
    readonly type: GenericType<T>;
    readonly columnName: keyof TE;
    readonly dataPropertyName: string;
    isPrimary: boolean;
    isNullable: boolean;
    /**
     * Determined whether column has been declared in select statement.
     */
    isDeclared: boolean;
    constructor(entity: IEntityExpression<TE>, expression: IExpression, propertyName: keyof TE, alias?: string);
    clone(replaceMap?: Map<IExpression, IExpression>): ComputedColumnExpression<TE, any>;
    toString(): string;
    hashCode(): number;
}