pavibhai commented on a change in pull request #647: URL: https://github.com/apache/orc/pull/647#discussion_r586702674
########## File path: java/core/src/java/org/apache/orc/OrcFilterContext.java ########## @@ -0,0 +1,88 @@ +/* + * 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.orc; + +import org.apache.hadoop.hive.ql.exec.vector.ColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.ListColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.MapColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch; +import org.apache.hadoop.hive.ql.io.filter.MutableFilterContext; + +/** + * This defines the input for any filter operation. This is an extension of + * [[{@link VectorizedRowBatch}]] with schema. + * <p> + * This offers a convenience method of finding the column vector from a given column name + * that the filters can invoke to get access to the column vector. + */ +public interface OrcFilterContext extends MutableFilterContext { + /** + * Retrieves the column vector that matches the specified name. Allows support for nested struct + * references e.g. order.date where data is a field in a struct called order. + * + * @param name The column name whose vector should be retrieved + * @return The column vector + * @throws IllegalArgumentException if the field is not found or if the nested field is not part + * of a struct + */ + ColumnVector[] findColumnVector(String name); Review comment: Added ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
