HFileBlock.PrefetchedHeader (Apache HBase 1.2.12 API)

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java.lang.Object
- org.apache.hadoop.hbase.io.hfile.HFileBlock.PrefetchedHeader

Enclosing class:

HFileBlock
```
private static class HFileBlock.PrefetchedHeader
extends Object
```
We always prefetch the header of the next block, so that we know its on-disk size in advance and can read it in one operation.

- Field Summary
  
  Fields
  Modifier and Type Field and Description
  
  (package private) ByteBuffer buf
  
  (package private) byte[] header
  
  (package private) long offset
- Constructor Summary
  
  Constructors
  Modifier Constructor and Description
  
  private HFileBlock.PrefetchedHeader()
- Method Summary
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

offset
```
long offset
```

header
```
byte[] header
```

buf
```
final ByteBuffer buf
```

Constructor Detail
- HFileBlock.PrefetchedHeader
```
private HFileBlock.PrefetchedHeader()
```

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