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:

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.apache.commons.logging.Log	LOG
protected long[]	slotPairs

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

keysAssigned, largestNumberOfSteps, loadFactor, logicalHashBucketCount, logicalHashBucketMask, metricExpands, metricPutConflict, resizeThreshold, writeBuffersSize

Constructor Summary

Constructors

Constructor and Description
VectorMapJoinFastLongHashTable(boolean minMaxEnabled, boolean isOuterJoin, VectorMapJoinDesc.HashTableKeyType hashTableKeyType, int initialCapacity, float loadFactor, int writeBuffersSize)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(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 long	findReadSlot(long key, long hashCode)
long	max()
long	min()
void	putRow(org.apache.hadoop.io.BytesWritable currentKey, org.apache.hadoop.io.BytesWritable currentValue)
void	putRow(long currentKey, byte[] currentValue)
boolean	useMinMax()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

slotPairs

protected long[] slotPairs

Constructor Detail

VectorMapJoinFastLongHashTable

public VectorMapJoinFastLongHashTable(boolean minMaxEnabled,
                              boolean isOuterJoin,
                              VectorMapJoinDesc.HashTableKeyType hashTableKeyType,
                              int initialCapacity,
                              float loadFactor,
                              int writeBuffersSize)

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

putRow

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

Specified by:

putRow in interface VectorMapJoinHashTable

Throws:

HiveException

IOException

putRow

public void putRow(long currentKey,
          byte[] 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 key,
       org.apache.hadoop.io.BytesWritable currentValue)

findReadSlot

protected long findReadSlot(long key,
                long hashCode)