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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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