/** Core */
import { Generic } from "cmf.core/src/core";
/** DataModel */
import { ColumnViewNode } from "../columnView/columnViewStructure";
export interface TreeViewModelNode extends ColumnViewNode {
    isOpen?: boolean;
    isFullyLoaded?: boolean;
    /**
     * Description of the node. Optional field
     */
    description?: string;
}
/**
 * TreeViewNode load data service
 */
export declare abstract class TreeViewNodeService extends Generic {
    /**
     * Gets or sets the onAfterLoadData hook.
     * @param loadTag
     */
    onAfterLoadData: (loadedTag: any) => Promise<void>;
    /**
     * Loads all data available for a node
     * @param loadTag the load tag
     * @param page the sequence number of the data chunk (send null if is to load all children)
     * @returns data
     */
    abstract loadData(loadTag: any, page?: number): Promise<TreeViewModelNode>;
}