org.apache.hadoop.hbase.io.hfile.bucket

Class BucketCache.BucketEntryGroup

java.lang.Object

org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntryGroup

Enclosing class:

BucketCache

private class BucketCache.BucketEntryGroup
extends Object

Used to group bucket entries into priority buckets. There will be a BucketEntryGroup for each priority (single, multi, memory). Once bucketed, the eviction algorithm takes the appropriate number of elements out of each according to configuration parameters and their relative sizes.

Field Summary

Fields

Modifier and Type	Field and Description
private long	bucketSize
private CachedEntryQueue	queue
private long	totalSize

Constructor Summary

Constructors

Constructor and Description
BucketEntryGroup(long bytesToFree, long blockSize, long bucketSize)

Method Summary

Modifier and Type	Method and Description
void	add(Map.Entry<BlockCacheKey,BucketCache.BucketEntry> block)
long	free(long toFree)
long	overflow()
long	totalSize()

Methods inherited from class java.lang.Object

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

Field Detail

queue

private CachedEntryQueue queue

totalSize

private long totalSize

bucketSize

private long bucketSize

Constructor Detail

BucketEntryGroup

public BucketEntryGroup(long bytesToFree,
                        long blockSize,
                        long bucketSize)

Method Detail

add

public void add(Map.Entry<BlockCacheKey,BucketCache.BucketEntry> block)

free

public long free(long toFree)

overflow

public long overflow()

totalSize

public long totalSize()