org.apache.hadoop.hive.ql.io.DefaultHivePartitioner Maven / Gradle / Ivy
/**
* 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,
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package org.apache.hadoop.hive.ql.io;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils;
import org.apache.hadoop.mapred.lib.HashPartitioner;
/** Partition keys by their {@link Object#hashCode()}. */
public class DefaultHivePartitioner extends HashPartitioner implements HivePartitioner {
/** Use {@link Object#hashCode()} to partition. */
@Override
public int getBucket(K2 key, V2 value, int numBuckets) {
return ObjectInspectorUtils.getBucketNumber(key.hashCode(), numBuckets);
}
}