| /* |
| // Licensed to Julian Hyde under one or more contributor license |
| // agreements. See the NOTICE file distributed with this work for |
| // additional information regarding copyright ownership. |
| // |
| // Julian Hyde licenses this file to you 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 net.hydromatic.optiq.impl.csv; |
| |
| import org.eigenbase.rel.RelNode; |
| import org.eigenbase.relopt.RelOptTable; |
| import org.eigenbase.reltype.RelProtoDataType; |
| |
| import java.io.File; |
| |
| /** |
| * Refinement of {@link CsvTable} that plans itself. |
| */ |
| class CsvSmartTable extends CsvTable { |
| /** Creates a CsvSmartTable. */ |
| CsvSmartTable(File file, RelProtoDataType protoRowType) { |
| super(file, protoRowType); |
| } |
| |
| public RelNode toRel( |
| RelOptTable.ToRelContext context, |
| RelOptTable relOptTable) { |
| // Request all fields. |
| final int fieldCount = relOptTable.getRowType().getFieldCount(); |
| final int[] fields = CsvEnumerator.identityList(fieldCount); |
| return new CsvTableScan(context.getCluster(), relOptTable, this, fields); |
| } |
| } |
| |
| // End CsvSmartTable.java |