com.townleyenterprises.trace
Class SystemTraceStream

java.lang.Object
  com.townleyenterprises.trace.SystemTraceStream

All Implemented Interfaces:

TraceStream

public class SystemTraceStream

extends java.lang.Object

implements TraceStream

This class provides a TraceStream implementation which is based on System.err and is the default trace stream used unless otherwise configured.

Since:

3.0

Version:

$Id: SystemTraceStream.java,v 1.1 2004/11/27 17:32:50 atownley Exp $

Author:

Andrew S. Townley

Method Summary

void	close() This method closes the trace stream.
static TraceStream	getInstance() This is the singleton's factory method for creating or obtaining a reference.
java.io.PrintStream	getPrintStream() This method returns the print stream associated with this output.
void	print(java.lang.Object message) This method writes the message to the trace output, but doesn't include the newline.
void	println(java.lang.Object message) This method writes a line to the trace output.
void	printStackTrace(java.lang.Throwable ex) This method is used to write an exception's stack trace to the trace output.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static TraceStream getInstance()

This is the singleton's factory method for creating or obtaining a reference.

Returns:

a TraceStream

print

public void print(java.lang.Object message)

This method writes the message to the trace output, but doesn't include the newline.

Specified by:

print in interface TraceStream

Parameters:

message - the message to write

println

public void println(java.lang.Object message)

This method writes a line to the trace output.

Specified by:

println in interface TraceStream

Parameters:

message - the message to write

printStackTrace

public void printStackTrace(java.lang.Throwable ex)

This method is used to write an exception's stack trace to the trace output.

Specified by:

printStackTrace in interface TraceStream

Parameters:

ex - the exception to print

getPrintStream

public java.io.PrintStream getPrintStream()

This method returns the print stream associated with this output.

Specified by:

getPrintStream in interface TraceStream

Returns:

a PrintStream instance

close

public void close()

This method closes the trace stream.

Specified by:

close in interface TraceStream