Module br.com.objectos.logging

Package br.com.objectos.logging

Class NoopLogger

java.lang.Object

br.com.objectos.logging.NoopLogger

All Implemented Interfaces:

Logger

public class NoopLogger
extends Object
implements Logger

A no-op Logger implementation (for the most part). The one exception is the Logger.replace(Logger) operation that actually returns the supplied value.

Since:

2

Constructor Summary

Constructors

Constructor	Description
NoopLogger()	The sole public constructor.

Method Summary

Modifier and Type	Method	Description
static NoopLogger	getInstance()	Returns the static instance.
boolean	isEnabled(Event event)	Returns false.
void	log(Event0 event)	Does nothing, this is a no-op logger.
<T1> void	log(Event1<T1> event, T1 v1)	Does nothing, this is a no-op logger.
<T1,T2> void	log(Event2<T1,T2> event, T1 v1, T2 v2)	Does nothing, this is a no-op logger.
<T1,T2,T3> void	log(Event3<T1,T2,T3> event, T1 v1, T2 v2, T3 v3)	Does nothing, this is a no-op logger.
Logger	replace(Logger logger)	Returns the given logger value.

Methods inherited from class java.lang.Object

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

Constructor Detail

NoopLogger

public NoopLogger()

The sole public constructor.

Method Detail

getInstance

public static NoopLogger getInstance()

Returns the static instance. This is method is provided as a convenience and to avoid creating multiple instances of this instance.

Returns:

the static instance

isEnabled

public boolean isEnabled(Event event)

Returns false.

Specified by:

isEnabled in interface Logger

Parameters:

event - an event instance (ignored)

Returns:

false

log

public void log(Event0 event)

Does nothing, this is a no-op logger.

Specified by:

log in interface Logger

Parameters:

event - an event instance (ignored)

log

public <T1> void log(Event1<T1> event,
                     T1 v1)

Does nothing, this is a no-op logger.

Specified by:

log in interface Logger

Type Parameters:

T1 - type of the log argument

Parameters:

event - an event instance (ignored)

v1 - a value (ignored)

log

public <T1,T2> void log(Event2<T1,T2> event,
                              T1 v1,
                              T2 v2)

Does nothing, this is a no-op logger.

Specified by:

log in interface Logger

Type Parameters:

T1 - type of the first log argument

T2 - type of the second log argument

Parameters:

event - an event instance (ignored)

v1 - a first value (ignored)

v2 - a second value (ignored)

log

public <T1,T2,T3> void log(Event3<T1,T2,T3> event,
                                       T1 v1,
                                       T2 v2,
                                       T3 v3)

Does nothing, this is a no-op logger.

Specified by:

log in interface Logger

Type Parameters:

T1 - type of the first log argument

T2 - type of the second log argument

T3 - type of the third log argument

Parameters:

event - an event instance (ignored)

v1 - a first value (ignored)

v2 - a second value (ignored)

v3 - a third value (ignored)

replace

public final Logger replace(Logger logger)

Returns the given logger value.

Specified by:

replace in interface Logger

Parameters:

logger - a Logger instance

Returns:

the given logger value