BucketCache.BucketEntryGroup (Apache HBase 1.2.12 API)

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java.lang.Object
- org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntryGroup

All Implemented Interfaces:

Comparable<BucketCache.BucketEntryGroup>

Enclosing class:

BucketCache
```
private class BucketCache.BucketEntryGroup
extends Object
implements Comparable<BucketCache.BucketEntryGroup>
```
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

BucketCache.BucketEntryGroup(long bytesToFree, long blockSize, long bucketSize)

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(Map.Entry<BlockCacheKey,BucketCache.BucketEntry> block)`
`int`	`compareTo(BucketCache.BucketEntryGroup that)`
`boolean`	`equals(Object that)`
`long`	`free(long toFree)`
`long`	`overflow()`
`long`	`totalSize()`

Methods inherited from class java.lang.Object
clone, 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

BucketCache.BucketEntryGroup

public BucketCache.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()
```

compareTo
```
public int compareTo(BucketCache.BucketEntryGroup that)
```
Specified by:

compareTo in interface Comparable<BucketCache.BucketEntryGroup>

equals
```
public boolean equals(Object that)
```
Overrides:

equals in class Object

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