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BatchFilter.java
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39 lines (34 loc) · 1.36 KB
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/*
* 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.filter;
import org.apache.orc.OrcFilterContext;
import java.util.function.Consumer;
/**
* Defines a batch filter that can operate on a
* {@link org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch} and filter rows by using the
* selected vector to determine the eligible rows.
* @since 1.7.0
*/
public interface BatchFilter extends Consumer<OrcFilterContext> {
/**
* Identifies the filter column names. These columns will be read before the filter is applied.
*
* @return Names of the filter columns
*/
String[] getColumnNames();
}