org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast

Class VectorMapJoinFastLongHashTable

java.lang.Object

org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastHashTable

org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastLongHashTable

All Implemented Interfaces:

MemoryEstimate, VectorMapJoinHashTable, VectorMapJoinLongHashTable

Direct Known Subclasses:

VectorMapJoinFastLongHashMap, VectorMapJoinFastLongHashMultiSet, VectorMapJoinFastLongHashSet

public abstract class VectorMapJoinFastLongHashTable
extends VectorMapJoinFastHashTable
implements VectorMapJoinLongHashTable

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG
protected long[]	slotPairs

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastHashTable

estimatedKeyCount, FIRST_SIZE_UP, HIGHEST_INT_POWER_OF_2, isFullOuter, keysAssigned, largestNumberOfSteps, loadFactor, logicalHashBucketCount, logicalHashBucketMask, metricExpands, metricPutConflict, ONE_QUARTER_LIMIT, ONE_SIXTH_LIMIT, resizeThreshold, writeBuffersSize

Constructor Summary

Constructors

Constructor and Description
VectorMapJoinFastLongHashTable(boolean isFullOuter, boolean minMaxEnabled, VectorMapJoinDesc.HashTableKeyType hashTableKeyType, int initialCapacity, float loadFactor, int writeBuffersSize, long estimatedKeyCount, TableDesc tableDesc)

Method Summary

Modifier and Type	Method and Description
boolean	adaptPutRow(long hashCode, org.apache.hadoop.io.BytesWritable currentKey, org.apache.hadoop.io.BytesWritable currentValue)
void	add(long hashCode, long key, org.apache.hadoop.io.BytesWritable currentValue)
protected abstract void	assignSlot(int slot, long key, boolean isNewKey, org.apache.hadoop.io.BytesWritable currentValue)
protected boolean	containsKey(long key)
protected int	findReadSlot(long key, long hashCode)
long	getEstimatedMemorySize()
long	max()
long	min()
boolean	useMinMax()

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastHashTable

checkResize, createMatchTracker, createNonMatchedIterator, size, spillPartitionId, throwExpandError

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.hive.ql.exec.vector.mapjoin.hashtable.VectorMapJoinHashTable

containsLongKey, createMatchTracker, createNonMatchedIterator, putRow, size, spillPartitionId

Field Detail

LOG

public static final org.slf4j.Logger LOG

slotPairs

protected long[] slotPairs

Constructor Detail

VectorMapJoinFastLongHashTable

public VectorMapJoinFastLongHashTable(boolean isFullOuter,
                                      boolean minMaxEnabled,
                                      VectorMapJoinDesc.HashTableKeyType hashTableKeyType,
                                      int initialCapacity,
                                      float loadFactor,
                                      int writeBuffersSize,
                                      long estimatedKeyCount,
                                      TableDesc tableDesc)

Method Detail

useMinMax

public boolean useMinMax()

Specified by:

useMinMax in interface VectorMapJoinLongHashTable

min

public long min()

Specified by:

min in interface VectorMapJoinLongHashTable

max

public long max()

Specified by:

max in interface VectorMapJoinLongHashTable

adaptPutRow

public boolean adaptPutRow(long hashCode,
                           org.apache.hadoop.io.BytesWritable currentKey,
                           org.apache.hadoop.io.BytesWritable currentValue)
                    throws HiveException,
                           IOException

Throws:

HiveException

IOException

assignSlot

protected abstract void assignSlot(int slot,
                                   long key,
                                   boolean isNewKey,
                                   org.apache.hadoop.io.BytesWritable currentValue)

add

public void add(long hashCode,
                long key,
                org.apache.hadoop.io.BytesWritable currentValue)

containsKey

protected boolean containsKey(long key)

findReadSlot

protected int findReadSlot(long key,
                           long hashCode)

getEstimatedMemorySize

public long getEstimatedMemorySize()

Specified by:

getEstimatedMemorySize in interface MemoryEstimate

Overrides:

getEstimatedMemorySize in class VectorMapJoinFastHashTable