/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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 org.apache.drill.exec.vector.accessor; /** * Interface for reading from tuples (rows or maps). Provides * a column reader for each column that can be obtained either * by name or column index (as defined in the tuple schema.) * Also provides two generic methods to get the value as a * Java object or as a string. */ public interface TupleReader extends TupleAccessor { ColumnReader column(int colIndex); ColumnReader column(String colName); Object get(int colIndex); String getAsString(int colIndex); }