Package com.sun.jini.reliableLog

Class LogOutputStream

java.lang.Object

java.io.OutputStream

com.sun.jini.reliableLog.LogOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class LogOutputStream
extends OutputStream

This class extends the functionality of the java.io.OutputStream class in order to provide an output mechanism that can be used by processes that perform logging operations; in particular, processes that store state in order to provide persistence.

Author:

Sun Microsystems, Inc.

See Also:

• OutputStream

Constructor Summary

Constructors

Constructor	Description
LogOutputStream(RandomAccessFile raf)	Creates an output file with the specified RandomAccessFile

Method Summary

Modifier and Type	Method	Description
final void	close()	A LogOutputStream cannot be closed, so this does nothing.
void	write(byte[] b)	Writes an array of bytes.
void	write(byte[] b, int off, int len)	Writes a sub-array of bytes.
void	write(int b)	Writes a byte of data.

Methods inherited from class java.io.OutputStream

flush, nullOutputStream

Methods inherited from class java.lang.Object

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

Constructor Details

LogOutputStream

public LogOutputStream(RandomAccessFile raf)
                throws IOException

Creates an output file with the specified RandomAccessFile

Parameters:

raf - the output file

Throws:

IOException - If an I/O error has occurred.

Method Details

write

public void write(int b)
           throws IOException

Writes a byte of data. This method will block until the byte is actually written.

Specified by:

write in class OutputStream

Parameters:

b - the byte to be written

Throws:

IOException - If an I/O error has occurred.

write

public void write(byte[] b)
           throws IOException

Writes an array of bytes. Will block until the bytes are actually written.

Overrides:

write in class OutputStream

Parameters:

b - the data to be written

Throws:

IOException - If an I/O error has occurred.

write

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

Writes a sub-array of bytes.

Overrides:

write in class OutputStream

Parameters:

b - the data to be written

off - the start offset in the data

len - the number of bytes to write

Throws:

IOException - If an I/O error has occurred.

close

public final void close()
                 throws IOException

A LogOutputStream cannot be closed, so this does nothing.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException - If an I/O error has occurred.