/**
 * Copyright 2018 人人开源 http://www.renren.io
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 io.renren.modules.app.service;


import com.baomidou.mybatisplus.service.IService;
import io.renren.common.utils.PageUtils;
import io.renren.modules.app.entity.ConfigEntity;

import java.util.Map;

/**
 * 系统配置信息
 * 
 * @author chenshun
 * @email sunlightcs@gmail.com
 * @date 2016年12月4日 下午6:49:01
 */
public interface ConfigService extends IService<ConfigEntity>  {

	PageUtils queryPage(Map<String, Object> params);
	
	/**
	 * 保存配置信息
	 */
	public void save(ConfigEntity config);
	
	/**
	 * 更新配置信息
	 */
	public void update(ConfigEntity config);
	
	/**
	 * 根据key，更新value
	 */
	public void updateValueByKey(String key, String value);
	
	/**
	 * 删除配置信息
	 */
	public void deleteBatch(Long[] ids);
	
	/**
	 * 根据key，获取配置的value值
	 * 
	 * @param key           key
	 */
	public String getValue(String key);
	
	/**
	 * 根据key，获取value的Object对象
	 * @param key    key
	 * @param clazz  Object对象
	 */
	public <T> T getConfigObject(String key, Class<T> clazz);
	
}
