import { Destroyable } from '../common';
import { ChangedItem, IModelEventTarget, KeyValueListener } from './event.interface';
export declare class ModelEventTarget extends Destroyable implements IModelEventTarget {
    private _map;
    constructor();
    /**
     * 监听属性变化
     * @param {string} propertyName  "color color.add color.delete"
     * @param {KeyValueListener} listener
     * @returns {this}
     */
    register(propertyName: string, listener: KeyValueListener): this;
    /**
     * 撤销对属性的监听
     * @param propertyName
     * @param listener
     */
    revoke(propertyName: string, listener?: KeyValueListener): void;
    /**
     * 该方法的存在  使得外部能够触发事件
     * @param item
     */
    trigger(item: ChangedItem | Array<ChangedItem>): void;
    protected _trigger(item: ChangedItem): void;
    /**
     * 批量触发属性变化事件
     * @param changedItemArray
     * @private
     */
    protected _batchTrigger(changedItemArray: Array<ChangedItem>): void;
}