net.tomp2p.storage

Class DataBuffer

java.lang.Object

net.tomp2p.storage.DataBuffer

public class DataBuffer
extends Object

Constructor Summary

Constructors

Constructor and Description
DataBuffer()
DataBuffer(byte[] buffer)
DataBuffer(byte[] buffer, int offset, int length)
DataBuffer(io.netty.buffer.ByteBuf buf) Creates a DataBuffer and adds the ByteBuf to this DataBuffer
DataBuffer(int nrArrays)

Method Summary

Methods

Modifier and Type	Method and Description
DataBuffer	add(DataBuffer dataBuffer)
int	alreadyTransferred()
List<ByteBuffer>	bufferList() Always make a copy with shallowCopy before using the buffer directly.
byte[]	bytes()
boolean	equals(Object obj)
protected void	finalize()
int	hashCode()
int	length()
void	resetAlreadyTransferred()
DataBuffer	shallowCopy()
io.netty.buffer.ByteBuf	toByteBuf()
io.netty.buffer.ByteBuf[]	toByteBufs()
int	transferFrom(io.netty.buffer.ByteBuf buf, int remaining)
void	transferTo(AlternativeCompositeByteBuf buf) Transfers the data from this buffer the CompositeByteBuf.

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataBuffer

public DataBuffer()

DataBuffer

public DataBuffer(int nrArrays)

DataBuffer

public DataBuffer(byte[] buffer)

DataBuffer

public DataBuffer(byte[] buffer,
          int offset,
          int length)

DataBuffer

public DataBuffer(io.netty.buffer.ByteBuf buf)

Creates a DataBuffer and adds the ByteBuf to this DataBuffer

Parameters:

buf - The ByteBuf to add

Method Detail

add

public DataBuffer add(DataBuffer dataBuffer)

shallowCopy

public DataBuffer shallowCopy()

bufferList

public List<ByteBuffer> bufferList()

Always make a copy with shallowCopy before using the buffer directly. This buffer is not thread safe!

Returns:

The backing list of byte buffers

length

public int length()

Returns:

The length of the data that is backed by the data buffer

toByteBuf

public io.netty.buffer.ByteBuf toByteBuf()

Returns:

The wrapped ByteBuf backed by the buffers stored in here. The buffer is not deep copied here.

toByteBufs

public io.netty.buffer.ByteBuf[] toByteBufs()

Returns:

The ByteBuf arrays backed by the buffers stored in here. The buffer is not deep copied here. That means the reference counting is done by this class. If you want to use it longer than this object, call ByteBuf.retain().

transferTo

public void transferTo(AlternativeCompositeByteBuf buf)

Transfers the data from this buffer the CompositeByteBuf.

Parameters:

buf - The CompositeByteBuf, where the data from this buffer is transfered to

transferFrom

public int transferFrom(io.netty.buffer.ByteBuf buf,
               int remaining)

alreadyTransferred

public int alreadyTransferred()

resetAlreadyTransferred

public void resetAlreadyTransferred()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

bytes

public byte[] bytes()