bpp
Class LazyFileOutputStream

java.lang.Object
  java.io.OutputStream
      bpp.LazyFileOutputStream

public class LazyFileOutputStream

extends java.io.OutputStream

Read the stream until a difference is noticed, then write the remainder.

This class acts like a FileOutputStream, but intead reads the file until a difference in what is written is noticed. If a change is noticed, the file is written from the first point of difference onward. If no change is noticed, then the file is only read.

Constructor Summary

LazyFileOutputStream(java.io.File _file)

LazyFileOutputStream(java.lang.String _fileName)

Method Summary

void	abandon() close without truncating the file to the current write position
void	close()
void	flush()
boolean	isAbandoned()
boolean	isDifferent()
void	write(byte[] data)
void	write(byte[] data, int offset, int length)
void	write(int data)

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyFileOutputStream

public LazyFileOutputStream(java.lang.String _fileName)
                     throws java.io.IOException

LazyFileOutputStream

public LazyFileOutputStream(java.io.File _file)
                     throws java.io.IOException

Method Detail

isDifferent

public boolean isDifferent()

isAbandoned

public boolean isAbandoned()

abandon

public void abandon()
             throws java.io.IOException

close without truncating the file to the current write position

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Throws:

java.io.IOException

write

public void write(byte[] data,
                  int offset,
                  int length)
           throws java.io.IOException

Throws:

java.io.IOException

write

public void write(byte[] data)
           throws java.io.IOException

Throws:

java.io.IOException

write

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

Throws:

java.io.IOException