org.apache.hadoop.hive.llap.cache

Class LlapDataBuffer

java.lang.Object

org.apache.hadoop.hive.llap.cache.LlapCacheableBuffer

org.apache.hadoop.hive.llap.cache.LlapAllocatorBuffer

org.apache.hadoop.hive.llap.cache.LlapDataBuffer

All Implemented Interfaces:

org.apache.hadoop.hive.common.io.encoded.MemoryBuffer

public final class LlapDataBuffer
extends LlapAllocatorBuffer

Field Summary

Fields

Modifier and Type	Field and Description
int	declaredCachedLength ORC cache uses this to store compressed length; buffer is cached uncompressed, but the lookup is on compressed ranges, so we need to know this.
static int	UNKNOWN_CACHED_LENGTH

Fields inherited from class org.apache.hadoop.hive.llap.cache.LlapAllocatorBuffer

allocSize, byteBuffer

Fields inherited from class org.apache.hadoop.hive.llap.cache.LlapCacheableBuffer

IN_LIST, indexInHeap, INVALIDATE_ALREADY_INVALID, INVALIDATE_FAILED, INVALIDATE_OK, lastUpdate, next, NOT_IN_CACHE, prev, priority

Constructor Summary

Constructors

Constructor and Description
LlapDataBuffer()

Method Summary

Modifier and Type	Method and Description
String	getTag()
void	notifyEvicted(EvictionDispatcher evictionDispatcher)
void	setTag(String tag)

Methods inherited from class org.apache.hadoop.hive.llap.cache.LlapAllocatorBuffer

cancelDiscard, decRef, endDiscard, getByteBufferDup, getByteBufferRaw, getMemoryUsage, incRef, initialize, initializeWithExistingSlice, invalidate, invalidateAndRelease, isInvalid, isLocked, releaseInvalidated, setNewAllocLocation, startMoveOrDiscard, toDebugString, toString

Methods inherited from class org.apache.hadoop.hive.llap.cache.LlapCacheableBuffer

toStringForCache

Methods inherited from class java.lang.Object

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

Field Detail

UNKNOWN_CACHED_LENGTH

public static final int UNKNOWN_CACHED_LENGTH

See Also:

Constant Field Values

declaredCachedLength

public int declaredCachedLength

ORC cache uses this to store compressed length; buffer is cached uncompressed, but the lookup is on compressed ranges, so we need to know this.

Constructor Detail

LlapDataBuffer

public LlapDataBuffer()

Method Detail

notifyEvicted

public void notifyEvicted(EvictionDispatcher evictionDispatcher)

Specified by:

notifyEvicted in class LlapCacheableBuffer

setTag

public void setTag(String tag)

getTag

public String getTag()

Specified by:

getTag in class LlapCacheableBuffer