org.apache.hadoop.hive.ql.exec.vector.mapjoin.optimized.VectorMapJoinOptimizedLongHashSet Maven / Gradle / Ivy
The newest version!
/**
* 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.hadoop.hive.ql.exec.vector.mapjoin.optimized;
import java.io.IOException;
import org.apache.hadoop.hive.ql.exec.JoinUtil.JoinResult;
import org.apache.hadoop.hive.ql.exec.persistence.MapJoinTableContainer;
import org.apache.hadoop.hive.ql.exec.persistence.MapJoinTableContainer.ReusableGetAdaptor;
import org.apache.hadoop.hive.ql.exec.vector.mapjoin.hashtable.VectorMapJoinHashSetResult;
import org.apache.hadoop.hive.ql.exec.vector.mapjoin.hashtable.VectorMapJoinLongHashSet;
import org.apache.hadoop.hive.ql.plan.VectorMapJoinDesc.HashTableKeyType;
/*
* An single long value hash map based on the BytesBytesMultiHashSet.
*
* We serialize the long key into BinarySortable format into an output buffer accepted by
* BytesBytesMultiHashSet.
*/
public class VectorMapJoinOptimizedLongHashSet
extends VectorMapJoinOptimizedHashSet
implements VectorMapJoinLongHashSet {
private VectorMapJoinOptimizedLongCommon longCommon;
@Override
public boolean useMinMax() {
return longCommon.useMinMax();
}
@Override
public long min() {
return longCommon.min();
}
@Override
public long max() {
return longCommon.max();
}
/*
@Override
public void putRow(BytesWritable currentKey, BytesWritable currentValue)
throws SerDeException, HiveException, IOException {
longCommon.adaptPutRow((VectorMapJoinOptimizedHashTable) this, currentKey, currentValue);
}
*/
@Override
public JoinResult contains(long key,
VectorMapJoinHashSetResult hashSetResult) throws IOException {
SerializedBytes serializedBytes = longCommon.serialize(key);
return super.contains(serializedBytes.bytes, serializedBytes.offset, serializedBytes.length,
hashSetResult);
}
public VectorMapJoinOptimizedLongHashSet(
boolean minMaxEnabled, boolean isOuterJoin, HashTableKeyType hashTableKeyType,
MapJoinTableContainer originalTableContainer, ReusableGetAdaptor hashMapRowGetter) {
super(originalTableContainer, hashMapRowGetter);
longCommon = new VectorMapJoinOptimizedLongCommon(minMaxEnabled, isOuterJoin, hashTableKeyType);
}
}