Log (EditLive! Swing SDK)

```
public interface Log
```
A simple logging interface that is used by the Ephox-namespaced Apache Commons logging API.

The six logging levels used by Log are (in order):
1. trace (the least serious)
2. debug
3. info
4. warn
5. error
6. fatal (the most serious)
Performance is often a logging concern. By examining the appropriate property, a component can avoid expensive operations (producing information to be logged).

For example
if (log.isDebugEnabled()) { ... do something expensive ... log.debug(theResult); }
Configuration of the underlying logging system is done by EditLive!, and can be controlled using LoggingUtils.
Since:

7.5

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`debug(java.lang.Object message)` Log a message with debug log level.
`void`	`debug(java.lang.Object message, java.lang.Throwable t)` Log an error with debug log level.
`void`	`error(java.lang.Object message)` Log a message with error log level.
`void`	`error(java.lang.Object message, java.lang.Throwable t)` Log an error with error log level.
`void`	`errorIfObjectIsNull(java.lang.Object obj, java.lang.Object message)` Logs the message using `error(Object)` only if obj is null
`void`	`fatal(java.lang.Object message)` Log a message with fatal log level.
`void`	`fatal(java.lang.Object message, java.lang.Throwable t)` Log an error with fatal log level.
`void`	`info(java.lang.Object message)` Log a message with info log level.
`void`	`info(java.lang.Object message, java.lang.Throwable t)` Log an error with info log level.
`boolean`	`isDebugEnabled()` Is debug logging currently enabled?
`boolean`	`isErrorEnabled()` Is error logging currently enabled?
`boolean`	`isFatalEnabled()` Is fatal logging currently enabled?
`boolean`	`isInfoEnabled()` Is info logging currently enabled?
`boolean`	`isTraceEnabled()` Is trace logging currently enabled?
`boolean`	`isWarnEnabled()` Is warning logging currently enabled?
`void`	`trace(java.lang.Object message)` Log a message with trace log level.
`void`	`trace(java.lang.Object message, java.lang.Throwable t)` Log an error with trace log level.
`void`	`warn(java.lang.Object message)` Log a message with warn log level.
`void`	`warn(java.lang.Object message, java.lang.Throwable t)` Log an error with warn log level.

- Method Detail
  - isDebugEnabled
```
boolean isDebugEnabled()
```
    Is debug logging currently enabled?
    
    Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than debug.
    
    Returns:
    true if debug logging enabled
  - isErrorEnabled
```
boolean isErrorEnabled()
```
    Is error logging currently enabled?
    
    Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than error.
    
    Returns:
    true if error logging enabled
  - isFatalEnabled
```
boolean isFatalEnabled()
```
    Is fatal logging currently enabled?
    
    Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than fatal.
    
    Returns:
    true if fatal logging enabled
  - isInfoEnabled
```
boolean isInfoEnabled()
```
    Is info logging currently enabled?
    
    Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than info.
    
    Returns:
    true if info logging enabled
  - isTraceEnabled
```
boolean isTraceEnabled()
```
    Is trace logging currently enabled?
    
    Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than trace.
    
    Returns:
    true if trace logging enabled
  - isWarnEnabled
```
boolean isWarnEnabled()
```
    Is warning logging currently enabled?
    
    Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than warning.
    
    Returns:
    true if warning logging enabled
  - trace
```
void trace(java.lang.Object message)
```
    Log a message with trace log level.
    
    Parameters:
    message - log this message
  - trace
```
void trace(java.lang.Object message,
         java.lang.Throwable t)
```
    Log an error with trace log level.
    
    Parameters:
    message - log this message
    t - log this cause
  - debug
```
void debug(java.lang.Object message)
```
    Log a message with debug log level.
    
    Parameters:
    message - log this message
  - debug
```
void debug(java.lang.Object message,
         java.lang.Throwable t)
```
    Log an error with debug log level.
    
    Parameters:
    message - log this message
    t - log this cause
  - info
```
void info(java.lang.Object message)
```
    Log a message with info log level.
    
    Parameters:
    message - log this message
  - info
```
void info(java.lang.Object message,
        java.lang.Throwable t)
```
    Log an error with info log level.
    
    Parameters:
    message - log this message
    t - log this cause
  - warn
```
void warn(java.lang.Object message)
```
    Log a message with warn log level.
    
    Parameters:
    message - log this message
  - warn
```
void warn(java.lang.Object message,
        java.lang.Throwable t)
```
    Log an error with warn log level.
    
    Parameters:
    message - log this message
    t - log this cause
  - error
```
void error(java.lang.Object message)
```
    Log a message with error log level.
    
    Parameters:
    message - log this message
  - error
```
void error(java.lang.Object message,
         java.lang.Throwable t)
```
    Log an error with error log level.
    
    Parameters:
    message - log this message
    t - log this cause
  - errorIfObjectIsNull
```
void errorIfObjectIsNull(java.lang.Object obj,
                       java.lang.Object message)
```
    Logs the message using error(Object) only if obj is null
    
    Parameters:
    obj - object to check
    message - message if obj is null
  - fatal
```
void fatal(java.lang.Object message)
```
    Log a message with fatal log level.
    
    Parameters:
    message - log this message
  - fatal
```
void fatal(java.lang.Object message,
         java.lang.Throwable t)
```
    Log an error with fatal log level.
    
    Parameters:
    message - log this message
    t - log this cause

Interface Log

Method Summary

Method Detail

isDebugEnabled

isErrorEnabled

isFatalEnabled

isInfoEnabled

isTraceEnabled

isWarnEnabled

trace

trace

debug

debug

info

info

warn

warn

error

error

errorIfObjectIsNull

fatal

fatal