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

Interface VectorMapJoinHashTable

All Superinterfaces:

MemoryEstimate

All Known Subinterfaces:

VectorMapJoinBytesHashMap, VectorMapJoinBytesHashMultiSet, VectorMapJoinBytesHashSet, VectorMapJoinBytesHashTable, VectorMapJoinHashMap, VectorMapJoinHashMultiSet, VectorMapJoinHashSet, VectorMapJoinLongHashMap, VectorMapJoinLongHashMultiSet, VectorMapJoinLongHashSet, VectorMapJoinLongHashTable

All Known Implementing Classes:

VectorMapJoinFastBytesHashMap, VectorMapJoinFastBytesHashMultiSet, VectorMapJoinFastBytesHashSet, VectorMapJoinFastBytesHashTable, VectorMapJoinFastHashMultiSet, VectorMapJoinFastHashSet, VectorMapJoinFastHashTable, VectorMapJoinFastHashTableContainerBase, VectorMapJoinFastLongHashMap, VectorMapJoinFastLongHashMapContainer, VectorMapJoinFastLongHashMultiSet, VectorMapJoinFastLongHashMultiSetContainer, VectorMapJoinFastLongHashSet, VectorMapJoinFastLongHashSetContainer, VectorMapJoinFastLongHashTable, VectorMapJoinFastMultiKeyHashMap, VectorMapJoinFastMultiKeyHashMapContainer, VectorMapJoinFastMultiKeyHashMultiSet, VectorMapJoinFastMultiKeyHashMultiSetContainer, VectorMapJoinFastMultiKeyHashSet, VectorMapJoinFastMultiKeyHashSetContainer, VectorMapJoinFastStringHashMap, VectorMapJoinFastStringHashMapContainer, VectorMapJoinFastStringHashMultiSet, VectorMapJoinFastStringHashMultiSetContainer, VectorMapJoinFastStringHashSet, VectorMapJoinFastStringHashSetContainer, VectorMapJoinFastTableContainer, VectorMapJoinOptimizedHashMap, VectorMapJoinOptimizedHashMultiSet, VectorMapJoinOptimizedHashSet, VectorMapJoinOptimizedHashTable, VectorMapJoinOptimizedLongHashMap, VectorMapJoinOptimizedLongHashMultiSet, VectorMapJoinOptimizedLongHashSet, VectorMapJoinOptimizedMultiKeyHashMap, VectorMapJoinOptimizedMultiKeyHashMultiSet, VectorMapJoinOptimizedMultiKeyHashSet, VectorMapJoinOptimizedStringHashMap, VectorMapJoinOptimizedStringHashMultiSet, VectorMapJoinOptimizedStringHashSet

public interface VectorMapJoinHashTable
extends MemoryEstimate

Method Summary

Modifier and Type	Method and Description
boolean	containsLongKey(long currentKey)
MatchTracker	createMatchTracker()
VectorMapJoinNonMatchedIterator	createNonMatchedIterator(MatchTracker matchTracker)
void	putRow(long hashCode, org.apache.hadoop.io.BytesWritable currentKey, org.apache.hadoop.io.BytesWritable currentValue)
int	size() Get hash table size
int	spillPartitionId()

Methods inherited from interface org.apache.hadoop.hive.common.MemoryEstimate

getEstimatedMemorySize

Method Detail

putRow

void putRow(long hashCode,
            org.apache.hadoop.io.BytesWritable currentKey,
            org.apache.hadoop.io.BytesWritable currentValue)
     throws SerDeException,
            HiveException,
            IOException

Parameters:

hashCode - current HashCode to avoid re-computation

currentKey - The current Key in bytes

currentValue - The current Value in bytes

Throws:

SerDeException

HiveException

IOException

containsLongKey

boolean containsLongKey(long currentKey)

Parameters:

currentKey - The key to check for existence.

Returns:

true If HashTable contains the given key.

size

int size()

Get hash table size

createMatchTracker

MatchTracker createMatchTracker()

createNonMatchedIterator

VectorMapJoinNonMatchedIterator createNonMatchedIterator(MatchTracker matchTracker)

spillPartitionId

int spillPartitionId()