Rebufferer (apache-cassandra API)

All Superinterfaces:

java.lang.AutoCloseable, ReaderFileProxy

All Known Implementing Classes:

BufferManagingRebufferer, BufferManagingRebufferer.Aligned, BufferManagingRebufferer.Unaligned, EmptyRebufferer, LimitingRebufferer, TailOverridingRebufferer, WrappingRebufferer
```
public interface Rebufferer
extends ReaderFileProxy
```
Rebufferer for reading data by a RandomAccessReader.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface Rebufferer.BufferHolder

Field Summary

Fields
Modifier and Type Field Description

static Rebufferer.BufferHolder EMPTY

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`closeReader()`	Called when a reader is closed.
`Rebufferer.BufferHolder`	`rebuffer(long position)`	Rebuffer (move on or seek to) a given position, and return a buffer that can be used there.

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

- Field Detail
  - EMPTY
```
static final Rebufferer.BufferHolder EMPTY
```
- Method Detail
  - rebuffer
```
Rebufferer.BufferHolder rebuffer(long position)
```
    Rebuffer (move on or seek to) a given position, and return a buffer that can be used there. The only guarantee about the size of the returned data is that unless rebuffering at the end of the file, the buffer will not be empty and will contain the requested position, i.e. offset <= position < offset + bh.buffer().limit(), but the buffer will not be positioned there.
  - closeReader
```
void closeReader()
```
    Called when a reader is closed. Should clean up reader-specific data.