Package org.jgroups.util

Class ByteArrayDataOutputStream

java.lang.Object

org.jgroups.util.BaseDataOutputStream

org.jgroups.util.ByteArrayDataOutputStream

All Implemented Interfaces:

java.io.DataOutput

public class ByteArrayDataOutputStream
extends BaseDataOutputStream

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	Description
protected byte[]	buf
protected boolean	grow_exponentially

Fields inherited from class org.jgroups.util.BaseDataOutputStream

pos

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
byte[]	buffer()
java.nio.ByteBuffer	byteBuffer()
int	capacity()
protected int	checkBounds(int pos)
protected void	ensureCapacity(int bytes)	Grows the buffer; whether it grow linearly or exponentially depends on grow_exponentially
ByteArray	getBuffer()
boolean	growExponentially()
ByteArrayDataOutputStream	growExponentially(boolean b)
java.lang.String	toString()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class org.jgroups.util.BaseDataOutputStream

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

Methods inherited from class java.lang.Object

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

Field Detail

buf

protected byte[] buf

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

buffer

public byte[] buffer()

getBuffer

public ByteArray getBuffer()

byteBuffer

public java.nio.ByteBuffer byteBuffer()

capacity

public int capacity()

growExponentially

public boolean growExponentially()

growExponentially

public ByteArrayDataOutputStream growExponentially(boolean b)

write

public void write(int b)

Specified by:

write in interface java.io.DataOutput

Specified by:

write in class BaseDataOutputStream

write

public void write(byte[] b)

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class BaseDataOutputStream

write

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

Specified by:

write in interface java.io.DataOutput

Specified by:

write in class BaseDataOutputStream

toString

public java.lang.String toString()

Overrides:

toString in class BaseDataOutputStream

checkBounds

protected int checkBounds(int pos)

Overrides:

checkBounds in class BaseDataOutputStream

ensureCapacity

protected void ensureCapacity(int bytes)

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

Specified by:

ensureCapacity in class BaseDataOutputStream