java.io
Class BufferedOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          java.io.BufferedOutputStream

public class BufferedOutputStream
extends FilterOutputStream

This is a minimal implementation of BufferedWriter. Normally BufferedWriter extends the abstract class Writer. The main reason for NXJ including this is to allow the new-line character in text. NOTE: Text writing is not synchronized either like standard Java.

Author:

BB

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

BufferedOutputStream(OutputStream out)
In the standard Java API the constructor accepts a Writer object, such as OutputStreamWriter.

BufferedOutputStream(OutputStream out, int size)

Method Summary

void	close() Closes this output stream and releases any system resources associated with this stream.
void	flush() Flushes this output stream and forces any buffered output bytes to be written out.
void	write(byte[] c, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	write(int c) Writes the specified byte to this output stream.

Methods inherited from class java.io.OutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferedOutputStream

public BufferedOutputStream(OutputStream out)

In the standard Java API the constructor accepts a Writer object, such as OutputStreamWriter.

Parameters:

out -

BufferedOutputStream

public BufferedOutputStream(OutputStream out,
                            int size)

Method Detail

close

public void close()
           throws IOException

Description copied from class: OutputStream

Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

The close method of OutputStream does nothing.

Overrides:

close in class FilterOutputStream

Throws:

IOException - if an I/O error occurs.

flush

public void flush()
           throws IOException

Description copied from class: OutputStream

Flushes this output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such bytes should immediately be written to their intended destination.

The flush method of OutputStream does nothing.

Overrides:

flush in class FilterOutputStream

Throws:

IOException - if an I/O error occurs.

write

public void write(int c)
           throws IOException

Description copied from class: OutputStream

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Subclasses of OutputStream must provide an implementation for this method.

Overrides:

write in class FilterOutputStream

Parameters:

c - the byte.

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

write

public void write(byte[] c,
                  int off,
                  int len)
           throws IOException

Description copied from class: OutputStream

Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

The write method of OutputStream calls the write method of one argument on each of the bytes to be written out. Subclasses are encouraged to override this method and provide a more efficient implementation.

If b is null, a NullPointerException is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

Overrides:

write in class FilterOutputStream

Parameters:

c - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException - if an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.