import { License } from '../../models/license';
import { ValueChangeCallback } from '../../models/context/value-change-callback';
import { ContextService } from '../context';
import { DeriveContextServiceContract } from '../../models/context/update-context-method';
import { LifecycleHooks } from '../../providers/service/lifecycle-hooks';
type LicenseContextFields = {
    readonly GRAPHDB_LICENSE: string;
    readonly IS_LICENSE_HARDCODED: string;
};
type LicenseContextFieldParams = {
    readonly GRAPHDB_LICENSE: License;
    readonly IS_LICENSE_HARDCODED: boolean;
};
/**
 * Service for managing license context in the application.
 * Extends the base ContextService to provide license-specific functionality.
 */
export declare class LicenseContextService extends ContextService<LicenseContextFields> implements DeriveContextServiceContract<LicenseContextFields, LicenseContextFieldParams>, LifecycleHooks {
    readonly GRAPHDB_LICENSE = "graphDbLicense";
    readonly IS_LICENSE_HARDCODED = "isLicenseHardcoded";
    /**
     * Updates the license information in the context.
     * @param license - The new License object to be set in the context.
     */
    updateGraphdbLicense(license: License | undefined): void;
    /**
     * Subscribes to changes in the license context
     *
     * @param callbackFn - A callback function that will be called when the license changes.
     * The callback receives the updated License object or undefined as its parameter.
     * @returns A function that, when called, will unsubscribe from the license changes.
     */
    onLicenseChanged(callbackFn: ValueChangeCallback<License | undefined>): () => void;
    /**
     * Retrieves the license information from the context.
     *
     * @return the license information or undefined, if there is no license.
     */
    getLicenseSnapshot(): License | undefined;
    /**
     * Updates whether the license is hardcoded in the context.
     * @param isLicenseHardcoded
     */
    updateIsLicenseHardcoded(isLicenseHardcoded: boolean | undefined): void;
    /**
     * Subscribes to changes in the hardcoded license status.
     *
     * @param callbackFn - A callback function that will be called when the hardcoded license status changes.
     * @returns A function that, when called, will unsubscribe from the hardcoded license status changes.
     */
    onIsLicenseHardcodedChanged(callbackFn: ValueChangeCallback<boolean | undefined>): () => void;
    /**
     * Retrieves whether the license is hardcoded from the context.
     *
     * @return true if the license is hardcoded, false otherwise, or undefined if not set.
     */
    isLicenseHardcodedSnapshot(): boolean | undefined;
}
export {};