
com.alibaba.nacos.plugin.datasource.impl.derby.TenantCapacityMapperByDerby Maven / Gradle / Ivy
/*
* Copyright 1999-2022 Alibaba Group Holding Ltd.
*
* 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.alibaba.nacos.plugin.datasource.impl.derby;
import com.alibaba.nacos.common.utils.CollectionUtils;
import com.alibaba.nacos.plugin.datasource.constants.DataSourceConstant;
import com.alibaba.nacos.plugin.datasource.constants.FieldConstant;
import com.alibaba.nacos.plugin.datasource.mapper.AbstractMapper;
import com.alibaba.nacos.plugin.datasource.mapper.TenantCapacityMapper;
import com.alibaba.nacos.plugin.datasource.model.MapperContext;
import com.alibaba.nacos.plugin.datasource.model.MapperResult;
/**
* The derby implementation of TenantCapacityMapper.
*
* @author hyx
**/
public class TenantCapacityMapperByDerby extends AbstractMapper implements TenantCapacityMapper {
@Override
public String getDataSource() {
return DataSourceConstant.DERBY;
}
@Override
public MapperResult getCapacityList4CorrectUsage(MapperContext context) {
String sql = "SELECT id, tenant_id FROM tenant_capacity WHERE id>? OFFSET 0 ROWS FETCH NEXT ? ROWS ONLY";
return new MapperResult(sql, CollectionUtils.list(context.getWhereParameter(FieldConstant.ID),
context.getWhereParameter(FieldConstant.LIMIT_SIZE)));
}
}
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