CompressedChunkReader (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.io.util.AbstractReaderFileProxy
- - org.apache.cassandra.io.util.CompressedChunkReader

All Implemented Interfaces:

java.lang.AutoCloseable, ChunkReader, ReaderFileProxy, RebuffererFactory

Direct Known Subclasses:

CompressedChunkReader.Mmap, CompressedChunkReader.Standard
```
public abstract class CompressedChunkReader
extends AbstractReaderFileProxy
implements ChunkReader
```

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class CompressedChunkReader.Mmap

static class CompressedChunkReader.Standard

Field Summary
- Fields inherited from class org.apache.cassandra.io.util.AbstractReaderFileProxy
  channel, fileLength

Constructor Summary

Constructors
Modifier Constructor Description

protected CompressedChunkReader(ChannelProxy channel, CompressionMetadata metadata)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`chunkSize()`	Buffer size required for this rebufferer.
`double`	`getCrcCheckChance()`	Needed for tests.
`Rebufferer`	`instantiateRebufferer()`
`BufferType`	`preferredBufferType()`	Specifies type of buffer the caller should attempt to give.
`java.lang.String`	`toString()`

Methods inherited from class org.apache.cassandra.io.util.AbstractReaderFileProxy
channel, close, fileLength

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.cassandra.io.util.ChunkReader
readChunk

Methods inherited from interface org.apache.cassandra.io.util.ReaderFileProxy
channel, close, fileLength

- Constructor Detail
  - CompressedChunkReader
```
protected CompressedChunkReader(ChannelProxy channel,
                                CompressionMetadata metadata)
```
- Method Detail
  - getCrcCheckChance
```
public double getCrcCheckChance()
```
    Description copied from interface: ReaderFileProxy
    
    Needed for tests. Returns the table's CRC check chance, which is only set for compressed tables.
    
    Specified by:
    
    getCrcCheckChance in interface ReaderFileProxy
    
    Overrides:
    
    getCrcCheckChance in class AbstractReaderFileProxy
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class AbstractReaderFileProxy
  - chunkSize
```
public int chunkSize()
```
    Description copied from interface: ChunkReader
    
    Buffer size required for this rebufferer. Must be power of 2 if alignment is required.
    
    Specified by:
    
    chunkSize in interface ChunkReader
  - preferredBufferType
```
public BufferType preferredBufferType()
```
    Description copied from interface: ChunkReader
    
    Specifies type of buffer the caller should attempt to give. This is not guaranteed to be fulfilled.
    
    Specified by:
    
    preferredBufferType in interface ChunkReader
  - instantiateRebufferer
```
public Rebufferer instantiateRebufferer()
```
    Specified by:
    
    instantiateRebufferer in interface RebuffererFactory