import { OnInit, OnDestroy, EventEmitter } from '@angular/core';
import { FormControl } from '@angular/forms';
import { SubQueryService, ApiVisa } from 'blg-akaun-ts-lib';
import { Observable, ReplaySubject } from 'rxjs';
import { SubSink } from 'subsink2';
import { IDropDownOptions } from '../models/drop-down-option.model';
export declare abstract class DropDownComponent<T> implements OnInit, OnDestroy {
    protected subQueryService: SubQueryService;
    apiVisa: ApiVisa;
    required: boolean;
    label: string;
    entity: FormControl;
    entityChange: EventEmitter<FormControl>;
    entitySelected: EventEmitter<T>;
    protected subs: SubSink;
    options: IDropDownOptions<T>;
    serverSideFiltering: FormControl;
    serverSideSearching: boolean;
    filteredOptions$: ReplaySubject<T[]>;
    entityList: T[];
    selectedEntity: T;
    constructor(subQueryService: SubQueryService);
    ngOnInit(): void;
    searchEntity(searchText: string): Observable<any[] | T[]>;
    onSelect(entityGuid: string): void;
    valueSelector(option: T): any;
    ngOnDestroy(): void;
}