import { ElementRef, Renderer2, SimpleChanges, OnInit, OnChanges } from '@angular/core';
import { NgControl } from '@angular/forms';
import { Observable } from 'rxjs';
import { ICommonValue } from '../models/common-value-model';
import * as i0 from "@angular/core";
export declare abstract class BaseSelectInputDirective implements OnInit, OnChanges {
    private formControl;
    private renderer;
    errorText: string;
    loadText: string;
    hiddenText: string;
    private element;
    private options;
    private loadingOption;
    private errorOption;
    private handleOnChanges;
    constructor(formControl: NgControl, elem: ElementRef, renderer: Renderer2);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    setItems(): void;
    refreshNeeded: (SimpleChanges: any) => boolean;
    abstract getData(value: any): Observable<ICommonValue[]>;
    static ɵfac: i0.ɵɵFactoryDeclaration<BaseSelectInputDirective, [{ optional: true; self: true; }, null, null]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<BaseSelectInputDirective, never, never, { "errorText": "renci-error-text"; "loadText": "renci-load-text"; "hiddenText": "renci-hidden-text"; }, {}, never>;
}
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