com.sharksharding.util.sequence.mysql.CreateSequenceIdDao Maven / Gradle / Ivy
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/*
* Copyright 2015-2101 gaoxianglong
*
* 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 com.sharksharding.util.sequence.mysql;
import java.sql.SQLException;
/**
* 生成唯一用户生成SequenceId的Dao接口
*
* @author gaoxianglong
*
* @version 1.3.5
*/
public interface CreateSequenceIdDao {
/**
* 根据指定的用户类别获取已申请的占位数量
*
* @author gaoxianglong
*
* @param type
* 类别
*
* @throws Exception
*
* @return Long 返回当前占位数量
*/
public Long queryUseDatabyType(int type) throws SQLException;
/**
* 根据指定的用户类别创建占位数量
*
* @author gaoxianglong
*
* @param type
* 类别
*
* @param useData
* 申请占位数量
*
* @throws Exception
*
* @return void
*/
public void insertSequenceId(int type, Long useData) throws SQLException;
/**
* 获取当前最大的占位数量
*
* @author gaoxianglong
*
* @throws Exception
*
* @return Long 返回最大的占位边界
*/
public Long queryMaxUseData() throws SQLException;
/**
* 根据指定的用户类别更新剩余占位数量和当前占位数量
*
* @author gaoxianglong
*
* @param type
* 类别
*
* @param useData
* 申请占位数量
*
* @throws Exception
*
* @return void
*/
public void changeUseData(int type, Long useData) throws SQLException;
}