org.apache.giraph.utils

Interface ExtendedDataOutput

All Superinterfaces:

DataOutput

All Known Implementing Classes:

ExtendedByteArrayDataOutput, UnsafeByteArrayOutputStream

public interface ExtendedDataOutput
extends DataOutput

Add a few features to data output

Method Summary

Modifier and Type	Method and Description
void	ensureWritable(int minSize) Ensure that backing byte structure has at least minSize additional bytes
byte[]	getByteArray() Get the internal byte array (if possible), read-only
int	getPos() Get the position in the output stream
void	reset() Clears the buffer
void	skipBytes(int bytesToSkip) Skip some number of bytes.
byte[]	toByteArray() Copies the internal byte array
byte[]	toByteArray(int offset, int length) Return a copy of slice of byte array
void	writeInt(int pos, int value) In order to write a size as a first part of an data output, it is useful to be able to write an int at an arbitrary location in the stream

Methods inherited from interface java.io.DataOutput

write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Method Detail

ensureWritable

void ensureWritable(int minSize)

Ensure that backing byte structure has at least minSize additional bytes

Parameters:

minSize - additional size required

skipBytes

void skipBytes(int bytesToSkip)

Skip some number of bytes.

Parameters:

bytesToSkip - Number of bytes to skip

writeInt

void writeInt(int pos,
              int value)

In order to write a size as a first part of an data output, it is useful to be able to write an int at an arbitrary location in the stream

Parameters:

pos - Byte position in the output stream

value - Value to write

getPos

int getPos()

Get the position in the output stream

Returns:

Position in the output stream

getByteArray

byte[] getByteArray()

Get the internal byte array (if possible), read-only

Returns:

Internal byte array (do not modify)

toByteArray

byte[] toByteArray()

Copies the internal byte array

Returns:

Copied byte array

toByteArray

byte[] toByteArray(int offset,
                   int length)

Return a copy of slice of byte array

Parameters:

offset - offset of array

length - length of slice

Returns:

byte array

reset

void reset()

Clears the buffer