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/**
 * Copyright (c) 2016-2022, wee0.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/
package wee0.pm;

import wee0.Wee0;
import wee0.config.IEnv;

/**
 * 包管理器便捷操作类
 * @author		baihw
 * @date 		2018年6月12日
 **/

/**
 *  *  examples:
 * 
 **/

public final class PackageManager{

	/**
	 * 用户未指定实现类名称时使用的默认实现类名称。
	 */
	public static final String DEF_IMPL_NAME = "wee0.pm.impl.DefaultPackageManager";

	// 实现类实例。
	private static final IPackageManager DEF_IMPL = ( IPackageManager )Wee0.getSingleInstance( IEnv.KEY_PACKAGEMANAGER_IMPL, DEF_IMPL_NAME );

	/**
	 * 获取当前使用的默认包管理器实现类实例。
	 * 
	 * @return 当前使用的默认包管理器实现类实例
	 */
	public static IPackageManager impl(){
		return DEF_IMPL;
	}

} // end class