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

Class VectorMapJoinFastStringHashMap

java.lang.Object

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

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

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

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

All Implemented Interfaces:

MemoryEstimate, VectorMapJoinBytesHashMap, VectorMapJoinBytesHashTable, VectorMapJoinHashMap, VectorMapJoinHashTable

public class VectorMapJoinFastStringHashMap
extends VectorMapJoinFastBytesHashMap

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastBytesHashMap

VectorMapJoinFastBytesHashMap.NonMatchedBytesHashMapIterator

Field Summary

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

testValueBytesWritable

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

slots, testKeyBytesWritable, unsafeReadPos, writeBuffers

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
VectorMapJoinFastStringHashMap(boolean isFullOuter, int initialCapacity, float loadFactor, int writeBuffersSize, long estimatedKeyCount, TableDesc tableDesc)

Method Summary

Modifier and Type	Method and Description
long	getEstimatedMemorySize()
void	putRow(long hashCode, org.apache.hadoop.io.BytesWritable currentKey, org.apache.hadoop.io.BytesWritable currentValue)

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

add, addFullOuterNullKeyValue, createHashMapResult, createNonMatchedIterator, doHashMapMatch, lookup, lookup

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

containsLongKey, expandAndRehash

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

checkResize, createMatchTracker, 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, size, spillPartitionId

Constructor Detail

VectorMapJoinFastStringHashMap

public VectorMapJoinFastStringHashMap(boolean isFullOuter,
                                      int initialCapacity,
                                      float loadFactor,
                                      int writeBuffersSize,
                                      long estimatedKeyCount,
                                      TableDesc tableDesc)

Method Detail

putRow

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

Specified by:

putRow in interface VectorMapJoinHashTable

Overrides:

putRow in class VectorMapJoinFastBytesHashTable

Parameters:

hashCode - current HashCode to avoid re-computation

currentKey - The current Key in bytes

currentValue - The current Value in bytes

Throws:

HiveException

IOException

getEstimatedMemorySize

public long getEstimatedMemorySize()

Specified by:

getEstimatedMemorySize in interface MemoryEstimate

Overrides:

getEstimatedMemorySize in class VectorMapJoinFastBytesHashMap