Logger (Logging interface 2.0 API)

All Known Implementing Classes:

ConsoleLogger, JavaLogger, NullLogger, Slf4jLogger
```
public interface Logger
```
The main Logger interface.

Author:

Peter Wall

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`void`	`debug(Object message)` Output a debug message.
`default void`	`debug(Supplier<Object> messageSupplier)` Output a debug message supplied by a `Supplier` function.
`void`	`error(Object message)` Output an error message.
`void`	`error(Object message, Throwable throwable)` Output an error message along with a `Throwable`.
`default void`	`error(Supplier<Object> messageSupplier)` Output an error message supplied by a `Supplier` function.
`default void`	`error(Supplier<Object> messageSupplier, Throwable throwable)` Output an error message supplied by a `Supplier` function, along with a `Throwable`.
`static Logger`	`getDefault(Class<?> javaClass)` Get a default `Logger` for the supplied Java `Class`.
`static Logger`	`getDefault(String name)` Get a default `Logger` with the supplied name.
`String`	`getName()` Get the name associated with this `Logger`.
`void`	`info(Object message)` Output an info message.
`default void`	`info(Supplier<Object> messageSupplier)` Output an info message supplied by a `Supplier` function.
`boolean`	`isDebugEnabled()` Test whether debug output is enabled for this `Logger`.
`boolean`	`isErrorEnabled()` Test whether error output is enabled for this `Logger`.
`boolean`	`isInfoEnabled()` Test whether info output is enabled for this `Logger`.
`boolean`	`isTraceEnabled()` Test whether trace output is enabled for this `Logger`.
`boolean`	`isWarnEnabled()` Test whether warning output is enabled for this `Logger`.
`default void`	`log(Level level, Object message)` Output a message with a variable level.
`default void`	`log(Level level, Supplier<Object> messageSupplier)` Output a message supplied by a `Supplier` function, with a variable level.
`void`	`trace(Object message)` Output a trace message.
`default void`	`trace(Supplier<Object> messageSupplier)` Output a trace message supplied by a `Supplier` function.
`void`	`warn(Object message)` Output a warning message.
`default void`	`warn(Supplier<Object> messageSupplier)` Output a warning message supplied by a `Supplier` function.

- Method Detail
  - getName
```
String getName()
```
    Get the name associated with this Logger.
    
    Returns:
    
    the name
  - isTraceEnabled
```
boolean isTraceEnabled()
```
    Test whether trace output is enabled for this Logger.
    
    Returns:
    
    true if trace output is enabled
  - isDebugEnabled
```
boolean isDebugEnabled()
```
    Test whether debug output is enabled for this Logger.
    
    Returns:
    
    true if debug output is enabled
  - isInfoEnabled
```
boolean isInfoEnabled()
```
    Test whether info output is enabled for this Logger.
    
    Returns:
    
    true if info output is enabled
  - isWarnEnabled
```
boolean isWarnEnabled()
```
    Test whether warning output is enabled for this Logger.
    
    Returns:
    
    true if warning output is enabled
  - isErrorEnabled
```
boolean isErrorEnabled()
```
    Test whether error output is enabled for this Logger.
    
    Returns:
    
    true if error output is enabled
  - trace
```
void trace(Object message)
```
    Output a trace message.
    
    Parameters:
    
    message - the message (will be output using Object.toString()
  - debug
```
void debug(Object message)
```
    Output a debug message.
    
    Parameters:
    
    message - the message (will be output using Object.toString()
  - info
```
void info(Object message)
```
    Output an info message.
    
    Parameters:
    
    message - the message (will be output using Object.toString()
  - warn
```
void warn(Object message)
```
    Output a warning message.
    
    Parameters:
    
    message - the message (will be output using Object.toString()
  - error
```
void error(Object message)
```
    Output an error message.
    
    Parameters:
    
    message - the message (will be output using Object.toString()
  - error
```
void error(Object message,
           Throwable throwable)
```
    Output an error message along with a Throwable.
    
    Parameters:
    
    message - the message (will be output using Object.toString()
    
    throwable - the Throwable
  - trace
```
default void trace(Supplier<Object> messageSupplier)
```
    Output a trace message supplied by a Supplier function. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    messageSupplier - the message supplier
  - debug
```
default void debug(Supplier<Object> messageSupplier)
```
    Output a debug message supplied by a Supplier function. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    messageSupplier - the message supplier
  - info
```
default void info(Supplier<Object> messageSupplier)
```
    Output an info message supplied by a Supplier function. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    messageSupplier - the message supplier
  - warn
```
default void warn(Supplier<Object> messageSupplier)
```
    Output a warning message supplied by a Supplier function. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    messageSupplier - the message supplier
  - error
```
default void error(Supplier<Object> messageSupplier)
```
    Output an error message supplied by a Supplier function. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    messageSupplier - the message supplier
  - error
```
default void error(Supplier<Object> messageSupplier,
                   Throwable throwable)
```
    Output an error message supplied by a Supplier function, along with a Throwable. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    messageSupplier - the message supplier
    
    throwable - the Throwable
  - log
```
default void log(Level level,
                 Object message)
```
    Output a message with a variable level.
    
    Parameters:
    
    level - the Level
    
    message - the message (will be output using Object.toString()
  - log
```
default void log(Level level,
                 Supplier<Object> messageSupplier)
```
    Output a message supplied by a Supplier function, with a variable level. The function will only be called if the logging level is enabled.
    
    Parameters:
    
    level - the Level
    
    messageSupplier - the message supplier
  - getDefault
```
static Logger getDefault(String name)
```
    Get a default Logger with the supplied name.
    
    Parameters:
    
    name - the name
    
    Returns:
    
    the Logger
  - getDefault
```
static Logger getDefault(Class<?> javaClass)
```
    Get a default Logger for the supplied Java Class.
    
    Parameters:
    
    javaClass - the Java Class
    
    Returns:
    
    the Logger

Interface Logger

Method Summary

Method Detail

getName

isTraceEnabled

isDebugEnabled

isInfoEnabled

isWarnEnabled

isErrorEnabled

trace

debug

info

warn

error

error

trace

debug

info

warn

error

error

log

log

getDefault

getDefault