tachyon.network.protocol.databuffer

Interface DataBuffer

All Known Implementing Classes:

DataByteArrayChannel, DataByteBuffer, DataFileChannel, DataNettyBuffer

public interface DataBuffer

This interface is a simple wrapper for the optional data that an RPCMessage may have. This allows subclasses to support different representations of the data.

Method Summary

Methods

Modifier and Type	Method and Description
long	getLength() Returns the length of the data.
Object	getNettyOutput() Returns an object for writing to a netty channel.
ByteBuffer	getReadOnlyByteBuffer() Returns a ByteBuffer for read-only access to the data.
void	release() Release the underlying buffer of this DataBuffer if no longer needed.

Method Detail

getNettyOutput

Object getNettyOutput()

Returns an object for writing to a netty channel.

Returns:

the object to output to Netty. Must be ByteBuf or FileRegion

getLength

long getLength()

Returns the length of the data.

Returns:

the length of the data in bytes

getReadOnlyByteBuffer

ByteBuffer getReadOnlyByteBuffer()

Returns a ByteBuffer for read-only access to the data.

Returns:

a read-only ByteBuffer representing the data

release

void release()

Release the underlying buffer of this DataBuffer if no longer needed.