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

Class VectorMapJoinFastKeyStore

java.lang.Object

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

All Implemented Interfaces:

MemoryEstimate

public class VectorMapJoinFastKeyStore
extends Object
implements MemoryEstimate

Constructor Summary

Constructors

Constructor and Description
VectorMapJoinFastKeyStore(int writeBuffersSize)
VectorMapJoinFastKeyStore(WriteBuffers writeBuffers)

Method Summary

Modifier and Type	Method and Description
long	add(byte[] keyBytes, int keyStart, int keyLength)
boolean	equalKey(long keyRefWord, byte[] keyBytes, int keyStart, int keyLength, WriteBuffers.Position readPos)
long	getEstimatedMemorySize()
void	getKey(long keyRefWord, WriteBuffers.ByteSegmentRef keyByteSegmentRef, WriteBuffers.Position readPos)
boolean	unsafeEqualKey(long keyRefWord, byte[] keyBytes, int keyStart, int keyLength) THIS METHOD IS NOT THREAD-SAFE.

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorMapJoinFastKeyStore

public VectorMapJoinFastKeyStore(int writeBuffersSize)

VectorMapJoinFastKeyStore

public VectorMapJoinFastKeyStore(WriteBuffers writeBuffers)

Method Detail

add

public long add(byte[] keyBytes,
                int keyStart,
                int keyLength)

unsafeEqualKey

public boolean unsafeEqualKey(long keyRefWord,
                              byte[] keyBytes,
                              int keyStart,
                              int keyLength)

THIS METHOD IS NOT THREAD-SAFE. Use only at load time (or be mindful of thread safety).

equalKey

public boolean equalKey(long keyRefWord,
                        byte[] keyBytes,
                        int keyStart,
                        int keyLength,
                        WriteBuffers.Position readPos)

getKey

public void getKey(long keyRefWord,
                   WriteBuffers.ByteSegmentRef keyByteSegmentRef,
                   WriteBuffers.Position readPos)

getEstimatedMemorySize

public long getEstimatedMemorySize()

Specified by:

getEstimatedMemorySize in interface MemoryEstimate