DataInputBuffer (apache-cassandra API)

java.lang.Object
- java.io.InputStream
- - org.apache.cassandra.io.util.DataInputPlus.DataInputStreamPlus
  - - org.apache.cassandra.io.util.RebufferingInputStream
    - - org.apache.cassandra.io.util.DataInputBuffer

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.lang.AutoCloseable, DataInputPlus

Direct Known Subclasses:

FileSegmentInputStream
```
public class DataInputBuffer
extends RebufferingInputStream
```
Input stream around a single ByteBuffer.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.cassandra.io.util.DataInputPlus
  DataInputPlus.DataInputStreamPlus

Field Summary
- Fields inherited from class org.apache.cassandra.io.util.RebufferingInputStream
  buffer

Constructor Summary

Constructors
Constructor	Description
`DataInputBuffer(byte[] buffer)`
`DataInputBuffer(byte[] buffer, int offset, int length)`
`DataInputBuffer(java.nio.ByteBuffer buffer, boolean duplicate)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`available()`
`void`	`close()`
`protected void`	`reBuffer()`	Implementations must implement this method to refill the buffer.

Methods inherited from class org.apache.cassandra.io.util.RebufferingInputStream
read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readFully, readInt, readLine, readLong, readPrimitiveSlowly, readShort, readUnsignedByte, readUnsignedShort, readUnsignedVInt, readUnsignedVInt32, readUTF, readVInt, readVInt32, skipBytes

Methods inherited from class java.io.InputStream
mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, transferTo

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

Methods inherited from interface org.apache.cassandra.io.util.DataInputPlus
skipBytesFully

- Constructor Detail
  - DataInputBuffer
```
public DataInputBuffer(java.nio.ByteBuffer buffer,
                       boolean duplicate)
```
    Parameters:
    
    buffer -
    
    duplicate - Whether or not to duplicate the buffer to ensure thread safety
  - DataInputBuffer
```
public DataInputBuffer(byte[] buffer,
                       int offset,
                       int length)
```
  - DataInputBuffer
```
public DataInputBuffer(byte[] buffer)
```
- Method Detail
  - reBuffer
```
protected void reBuffer()
```
    Description copied from class: RebufferingInputStream
    
    Implementations must implement this method to refill the buffer. They can expect the buffer to be empty when this method is invoked.
    
    Specified by:
    
    reBuffer in class RebufferingInputStream
  - available
```
public int available()
```
    Overrides:
    
    available in class java.io.InputStream
  - close
```
public void close()
```
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Overrides:
    
    close in class java.io.InputStream