org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastMultiKeyHashMultiSet Maven / Gradle / Ivy
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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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast;
import java.io.IOException;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.io.BytesWritable;
import hive.com.google.common.annotations.VisibleForTesting;
/*
* An multi-key hash multi-set optimized for vector map join.
*
* The key is stored as the provided bytes (uninterpreted).
*/
public class VectorMapJoinFastMultiKeyHashMultiSet
extends VectorMapJoinFastBytesHashMultiSet {
/*
* A Unit Test convenience method for putting the key into the hash table using the
* actual type.
*/
@VisibleForTesting
public void testPutRow(byte[] currentKey) throws HiveException, IOException {
if (testKeyBytesWritable == null) {
testKeyBytesWritable = new BytesWritable();
}
testKeyBytesWritable.set(currentKey, 0, currentKey.length);
putRow(testKeyBytesWritable, null);
}
public VectorMapJoinFastMultiKeyHashMultiSet(
boolean isOuterJoin,
int initialCapacity, float loadFactor, int writeBuffersSize, long estimatedKeyCount) {
super(initialCapacity, loadFactor, writeBuffersSize, estimatedKeyCount);
}
@Override
public long getEstimatedMemorySize() {
return super.getEstimatedMemorySize();
}
}