Log (PDFxStream API Reference)

```
public interface Log
```
Interface that must be implemented the loggers returned by any LogFactory implementation. The logging methods defined by this interface represent the range of severity that may be associated with logging messages. How and where such messages are outputted is entirely up to the Log implementation. The logging severity levels are (in ascending order):
1. trace
2. debug
3. info
4. warn
5. error
6. fatal
In addition, each Log implementation must provide isXXXXEnabled() methods, where 'XXXX' are the various logging severity levels. These methods return booleans indicating whether logging messages at the associated logging level will be outputted.
Version:

©2004-2014 Snowtide

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`debug(Object message)` Output a logging message at the 'debug' severity level.
`void`	`debug(Object message, Throwable t)` Output a logging message at the 'debug' severity level, including information about an associated Throwable.
`void`	`error(Object message)` Output a logging message at the 'error' severity level.
`void`	`error(Object message, Throwable t)` Output a logging message at the 'error' severity level, including information about an associated Throwable.
`void`	`fatal(Object message)` Output a logging message at the 'fatal' severity level.
`void`	`fatal(Object message, Throwable t)` Output a logging message at the 'fatal' severity level, including information about an associated Throwable.
`void`	`info(Object message)` Output a logging message at the 'info' severity level.
`void`	`info(Object message, Throwable t)` Output a logging message at the 'info' severity level, including information about an associated Throwable.
`boolean`	`isDebugEnabled()` Returns true if the 'debug' logging severity level is enabled.
`boolean`	`isErrorEnabled()` Returns true if the 'error' logging severity level is enabled.
`boolean`	`isFatalEnabled()` Returns true if the 'fatal' logging severity level is enabled.
`boolean`	`isInfoEnabled()` Returns true if the 'info' logging severity level is enabled.
`boolean`	`isTraceEnabled()` Returns true if the 'trace' logging severity level is enabled.
`boolean`	`isWarnEnabled()` Returns true if the 'warn' logging severity level is enabled.
`void`	`trace(Object message)` Output a logging message at the 'trace' severity level.
`void`	`trace(Object message, Throwable t)` Output a logging message at the 'trace' severity level, including information about an associated Throwable.
`void`	`warn(Object message)` Output a logging message at the 'warn' severity level.
`void`	`warn(Object message, Throwable t)` Output a logging message at the 'warn' severity level, including information about an associated Throwable.

- Method Detail
  - isDebugEnabled
```
boolean isDebugEnabled()
```
    Returns true if the 'debug' logging severity level is enabled.
  - isErrorEnabled
```
boolean isErrorEnabled()
```
    Returns true if the 'error' logging severity level is enabled.
  - isFatalEnabled
```
boolean isFatalEnabled()
```
    Returns true if the 'fatal' logging severity level is enabled.
  - isInfoEnabled
```
boolean isInfoEnabled()
```
    Returns true if the 'info' logging severity level is enabled.
  - isTraceEnabled
```
boolean isTraceEnabled()
```
    Returns true if the 'trace' logging severity level is enabled.
  - isWarnEnabled
```
boolean isWarnEnabled()
```
    Returns true if the 'warn' logging severity level is enabled.
  - trace
```
void trace(Object message)
```
    Output a logging message at the 'trace' severity level.
  - trace
```
void trace(Object message,
           Throwable t)
```
    Output a logging message at the 'trace' severity level, including information about an associated Throwable.
  - debug
```
void debug(Object message)
```
    Output a logging message at the 'debug' severity level.
  - debug
```
void debug(Object message,
           Throwable t)
```
    Output a logging message at the 'debug' severity level, including information about an associated Throwable.
  - info
```
void info(Object message)
```
    Output a logging message at the 'info' severity level.
  - info
```
void info(Object message,
          Throwable t)
```
    Output a logging message at the 'info' severity level, including information about an associated Throwable.
  - warn
```
void warn(Object message)
```
    Output a logging message at the 'warn' severity level.
  - warn
```
void warn(Object message,
          Throwable t)
```
    Output a logging message at the 'warn' severity level, including information about an associated Throwable.
  - error
```
void error(Object message)
```
    Output a logging message at the 'error' severity level.
  - error
```
void error(Object message,
           Throwable t)
```
    Output a logging message at the 'error' severity level, including information about an associated Throwable.
  - fatal
```
void fatal(Object message)
```
    Output a logging message at the 'fatal' severity level.
  - fatal
```
void fatal(Object message,
           Throwable t)
```
    Output a logging message at the 'fatal' severity level, including information about an associated Throwable.

Interface Log

Method Summary

Method Detail

isDebugEnabled

isErrorEnabled

isFatalEnabled

isInfoEnabled

isTraceEnabled

isWarnEnabled

trace

trace

debug

debug

info

info

warn

warn

error

error

fatal

fatal