Logger (documentplatform dist, documentation 5.6.10.6 API)

All Known Subinterfaces:

QualifiedLogger

All Known Implementing Classes:

AbstractQualifiedLogger
```
public interface Logger
```
The main user interface to logging. It is expected that logging takes place through concrete implementations of this interface.

Since:

2.0.3

Field Summary

Fields
Modifier and Type Field and Description

static String ROOT_LOGGER_NAME
Case insensitive String constant used to retrieve the name of the root logger.

Fields
Modifier and Type	Field and Description
`static String`	`ROOT_LOGGER_NAME` Case insensitive String constant used to retrieve the name of the root logger.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`debug(String msg)` Log a message at the DEBUG level.
`void`	`debug(String msg, Object... args)` Log a message at the DBUG level processing the passed arguments.
`void`	`debug(String msg, Throwable t)` Log an exception (throwable) at the DEBUG level with an accompanying message.
`void`	`error(String msg)` Log a message at the ERROR level.
`void`	`error(String msg, Object... args)` Log a message at the ERROR level processing the passed arguments.
`void`	`error(String msg, Throwable t)` Log an exception (throwable) at the ERROR level with an accompanying message.
`void`	`fatal(String msg)` Log a message at the WARN level.
`void`	`fatal(String msg, Object... args)` Log a message at the FATAL level processing the passed arguments.
`void`	`fatal(String msg, Throwable t)` Log an exception (throwable) at the WARN level with an accompanying message.
`String`	`getName()`
`void`	`info(String msg)` Log a message at the INFO level.
`void`	`info(String msg, Object... args)` Log the given message at the INFO processing the passed arguments.
`void`	`info(String msg, Throwable t)` Log an exception (throwable) at the INFO level with an accompanying message.
`boolean`	`isDebugEnabled()` Is the logger instance enabled for the DEBUG level?
`boolean`	`isErrorEnabled()` Is the logger instance enabled for the ERROR level?
`boolean`	`isFatalEnabled()` Is the logger instance enabled for the FATAL level?
`boolean`	`isInfoEnabled()` Is the logger instance enabled for the INFO level?
`boolean`	`isTraceEnabled()` Is the logger instance enabled for the TRACE level?
`boolean`	`isWarnEnabled()` Is the logger instance enabled for the WARN level?
`void`	`trace(String msg)` Log a message at the TRACE level.
`void`	`trace(String msg, Object... args)` Log a message at the TRACE level processing the passed arguments.
`void`	`trace(String msg, Throwable t)` Log an exception (throwable) at the TRACE level with an accompanying message.
`void`	`warn(String msg)` Log a message at the WARN level.
`void`	`warn(String msg, Object... args)` Log a message at the WARN level processing the passed arguments.
`void`	`warn(String msg, Throwable t)` Log an exception (throwable) at the WARN level with an accompanying message.

- Field Detail
  - ROOT_LOGGER_NAME
```
static final String ROOT_LOGGER_NAME
```
    Case insensitive String constant used to retrieve the name of the root logger.
    
    Since:
    
    1.3
    
    See Also:
    
    Constant Field Values
- Method Detail
  - debug
```
void debug(String msg)
```
    Log a message at the DEBUG level.
    
    Parameters:
    
    msg - the message string to be logged
  - debug
```
void debug(String msg,
           Object... args)
```
    Log a message at the DBUG level processing the passed arguments.
    
    Parameters:
    
    msg - the message
    
    args - the arguments
  - debug
```
void debug(String msg,
           Throwable t)
```
    Log an exception (throwable) at the DEBUG level with an accompanying message.
    
    Parameters:
    
    msg - the message accompanying the exception
    
    t - the exception (throwable) to log
  - error
```
void error(String msg)
```
    Log a message at the ERROR level.
    
    Parameters:
    
    msg - the message string to be logged
  - error
```
void error(String msg,
           Object... args)
```
    Log a message at the ERROR level processing the passed arguments.
    
    Parameters:
    
    msg - the message
    
    args - the arguments
  - error
```
void error(String msg,
           Throwable t)
```
    Log an exception (throwable) at the ERROR level with an accompanying message.
    
    Parameters:
    
    msg - the message accompanying the exception
    
    t - the exception (throwable) to log
  - fatal
```
void fatal(String msg)
```
    Log a message at the WARN level.
    
    Parameters:
    
    msg - the message string to be logged
  - fatal
```
void fatal(String msg,
           Object... args)
```
    Log a message at the FATAL level processing the passed arguments.
    
    Parameters:
    
    msg - the message
    
    args - the arguments
  - fatal
```
void fatal(String msg,
           Throwable t)
```
    Log an exception (throwable) at the WARN level with an accompanying message.
    
    Parameters:
    
    msg - the message accompanying the exception
    
    t - the exception (throwable) to log
  - getName
```
String getName()
```
    Returns:
    
    the name of this Logger instance.
  - info
```
void info(String msg)
```
    Log a message at the INFO level.
    
    Parameters:
    
    msg - the message string to be logged
  - info
```
void info(String msg,
          Object... args)
```
    Log the given message at the INFO processing the passed arguments.
    
    Parameters:
    
    msg - the message
    
    args - the arguments
  - info
```
void info(String msg,
          Throwable t)
```
    Log an exception (throwable) at the INFO level with an accompanying message.
    
    Parameters:
    
    msg - the message accompanying the exception
    
    t - the exception (throwable) to log
  - isDebugEnabled
```
boolean isDebugEnabled()
```
    Is the logger instance enabled for the DEBUG level?
    
    Returns:
    
    True if this Logger is enabled for the DEBUG level, false otherwise.
  - isErrorEnabled
```
boolean isErrorEnabled()
```
    Is the logger instance enabled for the ERROR level?
    
    Returns:
    
    True if this Logger is enabled for the ERROR level, false otherwise.
  - isFatalEnabled
```
boolean isFatalEnabled()
```
    Is the logger instance enabled for the FATAL level?
    
    Returns:
    
    True if this Logger is enabled for the FATAL level, false otherwise.
  - isInfoEnabled
```
boolean isInfoEnabled()
```
    Is the logger instance enabled for the INFO level?
    
    Returns:
    
    True if this Logger is enabled for the INFO level, false otherwise.
  - isTraceEnabled
```
boolean isTraceEnabled()
```
    Is the logger instance enabled for the TRACE level?
    
    Returns:
    
    True if this Logger is enabled for the TRACE level, false otherwise.
  - isWarnEnabled
```
boolean isWarnEnabled()
```
    Is the logger instance enabled for the WARN level?
    
    Returns:
    
    True if this Logger is enabled for the WARN level, false otherwise.
  - trace
```
void trace(String msg)
```
    Log a message at the TRACE level.
    
    Parameters:
    
    msg - the message string to be logged
  - trace
```
void trace(String msg,
           Object... args)
```
    Log a message at the TRACE level processing the passed arguments.
    
    Parameters:
    
    msg - the message
    
    args - the arguments
  - trace
```
void trace(String msg,
           Throwable t)
```
    Log an exception (throwable) at the TRACE level with an accompanying message.
    
    Parameters:
    
    msg - the message accompanying the exception
    
    t - the exception (throwable) to log
  - warn
```
void warn(String msg)
```
    Log a message at the WARN level.
    
    Parameters:
    
    msg - the message string to be logged
  - warn
```
void warn(String msg,
          Object... args)
```
    Log a message at the WARN level processing the passed arguments.
    
    Parameters:
    
    msg - the message string to be logged
    
    args - the arguments
  - warn
```
void warn(String msg,
          Throwable t)
```
    Log an exception (throwable) at the WARN level with an accompanying message.
    
    Parameters:
    
    msg - the message accompanying the exception
    
    t - the exception (throwable) to log

Interface Logger

Field Summary

Method Summary

Field Detail

ROOT_LOGGER_NAME

Method Detail

debug

debug

debug

error

error

error

fatal

fatal

fatal

getName

info

info

info

isDebugEnabled

isErrorEnabled

isFatalEnabled

isInfoEnabled

isTraceEnabled

isWarnEnabled

trace

trace

trace

warn

warn

warn