org.jgroups.util

Class ByteArrayDataOutputStream

java.lang.Object

org.jgroups.util.ByteArrayDataOutputStream

All Implemented Interfaces:

java.io.DataOutput

public class ByteArrayDataOutputStream
extends java.lang.Object
implements java.io.DataOutput

Implements DataOutput over a byte[] buffer. The byte[] buffer expands when needed; however, it doesn't double but only expands minimally, to accommodate the additional data. It is therefore recommended to always size the buffer to the actual number of bytes needed. This class is not thread safe.

Since:

3.5

Author:

Bela Ban

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	buf
protected boolean	grow_exponentially
protected int	pos

Constructor Summary

Constructors

Constructor and Description
ByteArrayDataOutputStream()
ByteArrayDataOutputStream(int capacity)
ByteArrayDataOutputStream(int capacity, boolean grow_exponentially)

Method Summary

Modifier and Type	Method and Description
byte[]	buffer()
protected int	checkBounds(int pos)
protected void	ensureCapacity(int bytes) Grows the buffer; whether it grow linearly or exponentially depends on grow_exponentially
Buffer	getBuffer()
java.nio.ByteBuffer	getByteBuffer()
boolean	growExponentially()
ByteArrayDataOutputStream	growExponentially(boolean b)
int	position()
ByteArrayDataOutputStream	position(int pos)
java.lang.String	toString()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)
void	writeBoolean(boolean v)
void	writeByte(int v)
void	writeBytes(java.lang.String s)
void	writeChar(int v)
void	writeChars(java.lang.String s)
void	writeDouble(double v)
void	writeFloat(float v)
void	writeInt(int v)
void	writeLong(long v)
void	writeShort(int v)
void	writeUTF(java.lang.String str)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

buf

protected byte[] buf

pos

protected int pos

grow_exponentially

protected boolean grow_exponentially

Constructor Detail

ByteArrayDataOutputStream

public ByteArrayDataOutputStream()

ByteArrayDataOutputStream

public ByteArrayDataOutputStream(int capacity)

ByteArrayDataOutputStream

public ByteArrayDataOutputStream(int capacity,
                                 boolean grow_exponentially)

Method Detail

position

public ByteArrayDataOutputStream position(int pos)

position

public int position()

buffer

public byte[] buffer()

getBuffer

public Buffer getBuffer()

getByteBuffer

public java.nio.ByteBuffer getByteBuffer()

growExponentially

public boolean growExponentially()

growExponentially

public ByteArrayDataOutputStream growExponentially(boolean b)

write

public void write(int b)

Specified by:

write in interface java.io.DataOutput

write

public void write(byte[] b)

Specified by:

write in interface java.io.DataOutput

write

public void write(byte[] b,
                  int off,
                  int len)

Specified by:

write in interface java.io.DataOutput

writeBoolean

public void writeBoolean(boolean v)

Specified by:

writeBoolean in interface java.io.DataOutput

writeByte

public void writeByte(int v)

Specified by:

writeByte in interface java.io.DataOutput

writeShort

public void writeShort(int v)

Specified by:

writeShort in interface java.io.DataOutput

writeChar

public void writeChar(int v)

Specified by:

writeChar in interface java.io.DataOutput

writeInt

public void writeInt(int v)

Specified by:

writeInt in interface java.io.DataOutput

writeLong

public void writeLong(long v)

Specified by:

writeLong in interface java.io.DataOutput

writeFloat

public void writeFloat(float v)

Specified by:

writeFloat in interface java.io.DataOutput

writeDouble

public void writeDouble(double v)

Specified by:

writeDouble in interface java.io.DataOutput

writeBytes

public void writeBytes(java.lang.String s)

Specified by:

writeBytes in interface java.io.DataOutput

writeChars

public void writeChars(java.lang.String s)

Specified by:

writeChars in interface java.io.DataOutput

writeUTF

public void writeUTF(java.lang.String str)

Specified by:

writeUTF in interface java.io.DataOutput

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

checkBounds

protected int checkBounds(int pos)

ensureCapacity

protected void ensureCapacity(int bytes)

Grows the buffer; whether it grow linearly or exponentially depends on grow_exponentially