Package org.apache.openjpa.lib.log

Class AbstractLog

java.lang.Object

org.apache.openjpa.lib.log.AbstractLog

All Implemented Interfaces:

Log

Direct Known Subclasses:

LogFactoryImpl.LogImpl

public abstract class AbstractLog
extends Object
implements Log

A simple implementation of the Log interface. Writes output to stdout.

Author:

Patrick Linskey

Field Summary

Fields inherited from interface org.apache.openjpa.lib.log.Log

ERROR, FATAL, INFO, TRACE, WARN

Constructor Summary

Constructors

Constructor	Description
AbstractLog()

Method Summary

Modifier and Type	Method	Description
void	error(Object message)	Write out a log message at the Log.ERROR level with the stringification of o as the body of the message, also outputting t to the log.
void	error(Object message, Throwable t)	Write out a log message at the Log.ERROR level with the stringification of o as the body of the message, also outputting t to the log.
void	fatal(Object message)	Write out a log message at the Log.FATAL level with the stringification of o as the body of the message, also outputting t to the log.
void	fatal(Object message, Throwable t)	Write out a log message at the Log.FATAL level with the stringification of o as the body of the message, also outputting t to the log.
protected static String	getStackTrace(Throwable t)	Utility method to obtain a stack trace as a String.
void	info(Object message)	Write out a log message at the Log.INFO level with the stringification of o as the body of the message, also outputting t to the log.
void	info(Object message, Throwable t)	Write out a log message at the Log.INFO level with the stringification of o as the body of the message, also outputting t to the log.
protected abstract boolean	isEnabled(short level)	Check to see if the specified logging level is enabled.
boolean	isErrorEnabled()	Returns if the Log.ERROR log level is enabled.
boolean	isFatalEnabled()	Returns if the Log.FATAL log level is enabled.
boolean	isInfoEnabled()	Returns if the Log.INFO log level is enabled.
boolean	isTraceEnabled()	Returns if the Log.TRACE log level is enabled.
boolean	isWarnEnabled()	Returns if the Log.WARN log level is enabled.
protected abstract void	log(short level, String message, Throwable t)	Send the specified log message to the handler.
void	trace(Object message)	Write out a log message at the Log.TRACE level with the stringification of o as the body of the message.
void	trace(Object message, Throwable t)	Write out a log message at the Log.TRACE level with the stringification of o as the body of the message, also outputting t to the log.
void	warn(Object message)	Write out a log message at the Log.WARN level with the stringification of o as the body of the message, also outputting t to the log.
void	warn(Object message, Throwable t)	Write out a log message at the Log.WARN level with the stringification of o as the body of the message, also outputting t to the log.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractLog

public AbstractLog()

Method Detail

isEnabled

protected abstract boolean isEnabled(short level)

Check to see if the specified logging level is enabled.

log

protected abstract void log(short level,
                            String message,
                            Throwable t)

Send the specified log message to the handler.

Parameters:

level - the level of the log message

message - the message to send

t - the Throwable, or null if this is not an error

isTraceEnabled

public boolean isTraceEnabled()

Description copied from interface: Log

Returns if the Log.TRACE log level is enabled.

Specified by:

isTraceEnabled in interface Log

isInfoEnabled

public boolean isInfoEnabled()

Description copied from interface: Log

Returns if the Log.INFO log level is enabled.

Specified by:

isInfoEnabled in interface Log

isWarnEnabled

public boolean isWarnEnabled()

Description copied from interface: Log

Returns if the Log.WARN log level is enabled.

Specified by:

isWarnEnabled in interface Log

isErrorEnabled

public boolean isErrorEnabled()

Description copied from interface: Log

Returns if the Log.ERROR log level is enabled.

Specified by:

isErrorEnabled in interface Log

isFatalEnabled

public boolean isFatalEnabled()

Description copied from interface: Log

Returns if the Log.FATAL log level is enabled.

Specified by:

isFatalEnabled in interface Log

trace

public void trace(Object message)

Description copied from interface: Log

Write out a log message at the Log.TRACE level with the stringification of o as the body of the message.

Specified by:

trace in interface Log

trace

public void trace(Object message,
                  Throwable t)

Description copied from interface: Log

Write out a log message at the Log.TRACE level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

trace in interface Log

info

public void info(Object message)

Description copied from interface: Log

Write out a log message at the Log.INFO level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

info in interface Log

info

public void info(Object message,
                 Throwable t)

Description copied from interface: Log

Write out a log message at the Log.INFO level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

info in interface Log

warn

public void warn(Object message)

Description copied from interface: Log

Write out a log message at the Log.WARN level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

warn in interface Log

warn

public void warn(Object message,
                 Throwable t)

Description copied from interface: Log

Write out a log message at the Log.WARN level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

warn in interface Log

error

public void error(Object message)

Description copied from interface: Log

Write out a log message at the Log.ERROR level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

error in interface Log

error

public void error(Object message,
                  Throwable t)

Description copied from interface: Log

Write out a log message at the Log.ERROR level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

error in interface Log

fatal

public void fatal(Object message)

Description copied from interface: Log

Write out a log message at the Log.FATAL level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

fatal in interface Log

fatal

public void fatal(Object message,
                  Throwable t)

Description copied from interface: Log

Write out a log message at the Log.FATAL level with the stringification of o as the body of the message, also outputting t to the log.

Specified by:

fatal in interface Log

getStackTrace

protected static String getStackTrace(Throwable t)

Utility method to obtain a stack trace as a String.