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org.apache.derby.iapi.services.io
Class ArrayOutputStream  

java.lang.Object
  java.io.OutputStream
      org.apache.derby.iapi.services.io.ArrayOutputStream

All Implemented Interfaces:

Limit

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public class ArrayOutputStream

extends java.io.OutputStream

implements Limit

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Field Summary
private  int	end
private  byte[]	pageData
private  int	position
private  int	start

 

Constructor Summary

ArrayOutputStream()

ArrayOutputStream(byte[] data)

 

Method Summary
int	clearLimit()           Clear any limit set by setLimit.
int	getPosition()
void	setData(byte[] data)
void	setLimit(int length)           Set the limit of the data that can be read or written.
void	setPosition(int newPosition)           Set the position of the stream pointer.
void	write(byte[] b, int off, int len)           This method writes len bytes from the specified array b starting at index off into the array.
void	write(int b)           This method writes a single byte to the output stream.

 

Methods inherited from class java.io.OutputStream

close, flush, write

 

Methods inherited from class java.lang.Object

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

 

Field Detail

pageData

private byte[] pageData

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start

private int start

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end

private int end

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position

private int position

Constructor Detail

ArrayOutputStream

public ArrayOutputStream()

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ArrayOutputStream

public ArrayOutputStream(byte[] data)

Method Detail

setData

public void setData(byte[] data)

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write

public void write(int b)
           throws java.io.IOException

Description copied from class: java.io.OutputStream

This method writes a single byte to the output stream. The byte written is the low eight bits of the int passed and a argument.

Subclasses must provide an implementation of this abstract method

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write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Description copied from class: java.io.OutputStream

This method writes len bytes from the specified array b starting at index off into the array.

This method in this class calls the single byte write() method in a loop until all bytes have been written. Subclasses should override this method if possible in order to provide a more efficent implementation.

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getPosition

public int getPosition()

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setPosition

public void setPosition(int newPosition)
                 throws java.io.IOException

Set the position of the stream pointer.

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setLimit

public void setLimit(int length)
              throws java.io.IOException

Description copied from interface: Limit

Set the limit of the data that can be read or written. After this call up to and including length bytes can be read from or skipped in the stream.

On input classes (e.g. InputStreams) any attempt to read or skip beyond the limit will result in an end of file indication (e.g. read() methods returning -1 or throwing EOFException).

On output classes (e.g. OutputStream) any attempt to write more beyond the limit will result in an EOFException

Specified by:

setLimit in interface Limit

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clearLimit

public int clearLimit()

Description copied from interface: Limit

Clear any limit set by setLimit. After this call no limit checking will be made on any read until a setLimit()) call is made.

Specified by:

clearLimit in interface Limit

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