import { ElementRef, OnInit, Renderer2 } from '@angular/core';
export declare class MdbValidateDirective implements OnInit {
    private renderer;
    private el;
    private _validate;
    private _validateSuccess;
    private _validateError;
    mdbValidate: boolean;
    get validate(): boolean;
    set validate(value: boolean);
    get validateSuccess(): boolean;
    set validateSuccess(value: boolean);
    get validateError(): boolean;
    set validateError(value: boolean);
    constructor(renderer: Renderer2, el: ElementRef);
    updateSuccessClass(): void;
    updateErrorClass(): void;
    ngOnInit(): void;
}