import { Injector, OnDestroy } from '@angular/core';
import { TaskContentService } from './task-content.service';
import { FieldConverterService } from './field-converter.service';
import { SnackBarService } from '../../snack-bar/services/snack-bar.service';
import { TranslateService } from '@ngx-translate/core';
import { LoggerService } from '../../logger/services/logger.service';
import { Observable, ReplaySubject } from 'rxjs';
import { Task } from '../../resources/interface/task';
import * as i0 from "@angular/core";
/**
 * Provides an implementation of the {@link TaskContentService} abstract class that allows only a
 * single call to the setter of the managed Task object.
 *
 * If you want to use an unlimited number of calls use {@link UnlimitedTaskContentService} instead.
 */
export declare class SingleTaskContentService extends TaskContentService implements OnDestroy {
    /**
     * Acts as the underling stream for notifications on Task changes.
     *
     * `bufferSize` of the `ReplaySubject` instance is set to 1.
     */
    protected _task$: ReplaySubject<Task>;
    constructor(_fieldConverterService: FieldConverterService, _snackBarService: SnackBarService, _translate: TranslateService, _logger: LoggerService, _injector: Injector);
    /**
     * @returns the Task object if set and `undefined` otherwise
     */
    get task(): Task | undefined;
    /**
     * The task can be only set once. All other call do nothing and log an error.
     * @param task the Task that owns the content managed by this service
     */
    set task(task: Task);
    /**
     * Stream returns a single {@link Task} object and then completes.
     *
     * Use [task]{@link TaskContentService#task} setter method to set the Task.
     */
    get task$(): Observable<Task>;
    /**
     * Completes the underling stream.
     */
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SingleTaskContentService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SingleTaskContentService>;
}