程序包 com.alibaba.nacos.plugin.datasource.mapper

接口 GroupCapacityMapper

所有超级接口:

Mapper

所有已知实现类:

GroupCapacityMapperByDerby, GroupCapacityMapperByMysql

public interface GroupCapacityMapper
extends Mapper

The tenant capacity info mapper.

作者:

lixiaoshuang

方法概要

修饰符和类型	方法	说明
java.lang.String	decrementUsageByWhere()	used to decrement usage field.
java.lang.String	incrementUsageByWhere()	used to increment usage field.
java.lang.String	incrementUsageByWhereQuotaEqualZero()	used to increment usage field.
java.lang.String	incrementUsageByWhereQuotaNotEqualZero()	used to increment usage field.
java.lang.String	insertIntoSelect()	INSERT INTO SELECT statement.
java.lang.String	insertIntoSelectByWhere()	INSERT INTO SELECT statement.
java.lang.String	selectGroupInfoBySize()	used to select group info.
java.lang.String	updateUsage()	used to update usage field.
java.lang.String	updateUsageByWhere()	used to update usage field.

从接口继承的方法 com.alibaba.nacos.plugin.datasource.mapper.Mapper

count, delete, getDataSource, getPrimaryKeyGeneratedKeys, getTableName, insert, select, update

方法详细资料

insertIntoSelect

java.lang.String insertIntoSelect()

INSERT INTO SELECT statement. Used to insert query results into a table.

Example: INSERT INTO group_capacity (group_id, quota,`usage`, `max_size`, max_aggr_count, max_aggr_size,gmt_create, gmt_modified) SELECT ?, ?, count(*), ?, ?, ?, ?, ? FROM config_info;

返回:

sql.

insertIntoSelectByWhere

java.lang.String insertIntoSelectByWhere()

INSERT INTO SELECT statement. Used to insert query results into a table.

Where condition: group_id=? AND tenant_id = ''

Example: INSERT INTO group_capacity (group_id, quota,`usage`, `max_size`, max_aggr_count, max_aggr_size,gmt_create, gmt_modified) SELECT ?, ?, count(*), ?, ?, ?, ?, ? FROM config_info where group_id=? AND tenant_id = '';

返回:

sql.

incrementUsageByWhereQuotaEqualZero

java.lang.String incrementUsageByWhereQuotaEqualZero()

used to increment usage field.

Where condition: group_id = ? AND usage < ? AND quota = 0;

Example: UPDATE group_capacity SET `usage` = `usage` + 1, gmt_modified = ? WHERE group_id = ? AND `usage` < ? AND quota = 0;

返回:

incrementUsageByWhereQuotaNotEqualZero

java.lang.String incrementUsageByWhereQuotaNotEqualZero()

used to increment usage field.

Where condition: group_id = ? AND usage < quota AND quota != 0

Example: UPDATE group_capacity SET `usage` = `usage` + 1, gmt_modified = ? WHERE group_id = ? AND `usage` < quota AND quota != 0;

返回:

incrementUsageByWhere

java.lang.String incrementUsageByWhere()

used to increment usage field.

Where condition: group_id = ?

Example: UPDATE group_capacity SET `usage` = `usage` + 1, gmt_modified = ? WHERE group_id = ?;

返回:

decrementUsageByWhere

java.lang.String decrementUsageByWhere()

used to decrement usage field.

Where condition: group_id = ? AND `usage` > 0

Example: UPDATE group_capacity SET `usage` = `usage` - 1, gmt_modified = ? WHERE group_id = ? AND `usage` > 0;

返回:

updateUsage

java.lang.String updateUsage()

used to update usage field.

Example: UPDATE group_capacity SET `usage` = (SELECT count(*) FROM config_info), gmt_modified = ? WHERE group_id = ?;

返回:

updateUsageByWhere

java.lang.String updateUsageByWhere()

used to update usage field.

Where condition: group_id=? AND tenant_id = ''

Example: UPDATE group_capacity SET `usage` = (SELECT count(*) FROM config_info WHERE group_id=? AND tenant_id = ''), gmt_modified = ? WHERE group_id= ?;

返回:

selectGroupInfoBySize

java.lang.String selectGroupInfoBySize()

used to select group info.

Example: SELECT id, group_id FROM group_capacity WHERE id>? LIMIT ?;

返回: