org.apache.drill.exec.physical.impl.common

Class HashTableTemplate

java.lang.Object

org.apache.drill.exec.physical.impl.common.HashTableTemplate

All Implemented Interfaces:

HashTable

public abstract class HashTableTemplate
extends Object
implements HashTable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	HashTableTemplate.BatchHolder

Nested classes/interfaces inherited from interface org.apache.drill.exec.physical.impl.common.HashTable

HashTable.PutStatus

Field Summary

Fields inherited from interface org.apache.drill.exec.physical.impl.common.HashTable

BATCH_MASK, BATCH_SIZE, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR, MAXIMUM_CAPACITY, TEMPLATE_DEFINITION, VARIABLE_WIDTH_VECTOR_SIZE

Constructor Summary

Constructors

Constructor and Description
HashTableTemplate()

Method Summary

Methods

Modifier and Type	Method and Description
void	addNewKeyBatch()
void	clear()
int	containsKey(int incomingRowIdx, boolean isProbe)
protected abstract void	doSetup(RecordBatch incomingBuild, RecordBatch incomingProbe)
protected abstract int	getHashBuild(int incomingRowIdx)
protected abstract int	getHashProbe(int incomingRowIdx)
void	getStats(HashTableStats stats)
boolean	isEmpty()
int	numBuckets()
int	numResizing()
boolean	outputKeys(int batchIdx, VectorContainer outContainer, int outStartIndex, int numRecords)
void	put(int incomingRowIdx, IndexPointer htIdxHolder, int retryCount)
void	setup(HashTableConfig htConfig, FragmentContext context, BufferAllocator allocator, RecordBatch incomingBuild, RecordBatch incomingProbe, RecordBatch outgoing, VectorContainer htContainerOrig)
int	size()
void	updateBatches()

Methods inherited from class java.lang.Object

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

Constructor Detail

HashTableTemplate

public HashTableTemplate()

Method Detail

setup

public void setup(HashTableConfig htConfig,
         FragmentContext context,
         BufferAllocator allocator,
         RecordBatch incomingBuild,
         RecordBatch incomingProbe,
         RecordBatch outgoing,
         VectorContainer htContainerOrig)

Specified by:

setup in interface HashTable

updateBatches

public void updateBatches()

Specified by:

updateBatches in interface HashTable

numBuckets

public int numBuckets()

numResizing

public int numResizing()

size

public int size()

Specified by:

size in interface HashTable

getStats

public void getStats(HashTableStats stats)

Specified by:

getStats in interface HashTable

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface HashTable

clear

public void clear()

Specified by:

clear in interface HashTable

put

public void put(int incomingRowIdx,
       IndexPointer htIdxHolder,
       int retryCount)

Specified by:

put in interface HashTable

containsKey

public int containsKey(int incomingRowIdx,
              boolean isProbe)

Specified by:

containsKey in interface HashTable

outputKeys

public boolean outputKeys(int batchIdx,
                 VectorContainer outContainer,
                 int outStartIndex,
                 int numRecords)

Specified by:

outputKeys in interface HashTable

addNewKeyBatch

public void addNewKeyBatch()

Specified by:

addNewKeyBatch in interface HashTable

doSetup

protected abstract void doSetup(@Named(value="incomingBuild")
           RecordBatch incomingBuild,
           @Named(value="incomingProbe")
           RecordBatch incomingProbe)

getHashBuild

protected abstract int getHashBuild(@Named(value="incomingRowIdx")
               int incomingRowIdx)

getHashProbe

protected abstract int getHashProbe(@Named(value="incomingRowIdx")
               int incomingRowIdx)