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LevelRangeFilter Class Reference

This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range. More...

Inherits Filter.

## Public Types
typedef spi::Filter | BASE_CLASS
Public Types inherited from Filter
enum | FilterDecision { DENY = -1, NEUTRAL = 0, ACCEPT = 1 }

## Public Member Functions
| LevelRangeFilter ()
virtual void | setOption (const LogString &option, const LogString &value)
| Set options. More...
void | setLevelMin (const LevelPtr &levelMin1)
| Set the `LevelMin` option. More...
const LevelPtr & | getLevelMin () const
| Get the value of the `LevelMin` option. More...
void | setLevelMax (const LevelPtr &levelMax1)
| Set the `LevelMax` option. More...
const LevelPtr & | getLevelMax () const
| Get the value of the `LevelMax` option. More...
void | setAcceptOnMatch (bool acceptOnMatch1)
| Set the `AcceptOnMatch` option. More...
bool | getAcceptOnMatch () const
| Get the value of the `AcceptOnMatch` option. More...
FilterDecision | decide (const spi::LoggingEventPtr &event) const
| Return the decision of this filter. More...
Public Member Functions inherited from Filter
| Filter ()
void | addRef () const
void | releaseRef () const
log4cxx::spi::FilterPtr | getNext () const
void | setNext (const log4cxx::spi::FilterPtr &newNext)
void | activateOptions (log4cxx::helpers::Pool &p)
| Usually filters options become active when set. More...
void | setOption (const LogString &option, const LogString &value)
| Set `option` to `value`. More...
Public Member Functions inherited from OptionHandler
virtual | ~OptionHandler ()
Public Member Functions inherited from Object
virtual const helpers::Class & | getClass () const
virtual | ~Object ()
virtual bool | instanceof (const Class &clazz) const =0
virtual const void * | cast (const Class &clazz) const =0
Public Member Functions inherited from ObjectImpl
| ObjectImpl ()
virtual | ~ObjectImpl ()

## Additional Inherited Members
Static Public Member Functions inherited from Object
static const helpers::Class & | getStaticClass ()
static const log4cxx::helpers::ClassRegistration & | registerClass ()
Protected Attributes inherited from ObjectImpl
unsigned int volatile | ref

## Detailed Description

This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range.

The filter admits three options LevelMin, LevelMax and AcceptOnMatch.

If the level of the LoggingEvent is not between Min and Max (inclusive), then DENY is returned.

If the Logging event level is within the specified range, then if AcceptOnMatch is true, ACCEPT is returned, and if AcceptOnMatch is false, NEUTRAL is returned.

If `LevelMin`w is not defined, then there is no minimum acceptable level (ie a level is never rejected for being too "low"/unimportant). If `LevelMax` is not defined, then there is no maximum acceptable level (ie a level is never rejected for beeing too "high"/important).

Refer to the setThreshold method available to `all` appenders extending AppenderSkeleton for a more convenient way to filter out events by level.

## Member Typedef Documentation

typedef spi::Filter BASE_CLASS

## Constructor & Destructor Documentation

LevelRangeFilter | ( |  | ) |

## Member Function Documentation

FilterDecision decide | ( | const spi::LoggingEventPtr & | event | ) | const
| virtual

Return the decision of this filter.

Returns NEUTRAL if the LevelToMatch option is not set or if there is not match. Otherwise, if there is a match, then the returned decision is ACCEPT if the AcceptOnMatch property is set to `true`. The returned decision is DENY if the AcceptOnMatch property is set to false.

Implements Filter.

bool getAcceptOnMatch | ( |  | ) | const
| inline

Get the value of the `AcceptOnMatch` option.

const LevelPtr& getLevelMax | ( |  | ) | const
| inline

Get the value of the `LevelMax` option.

const LevelPtr& getLevelMin | ( |  | ) | const
| inline

Get the value of the `LevelMin` option.

void setAcceptOnMatch | ( | bool | acceptOnMatch1 | ) |
| inline

Set the `AcceptOnMatch` option.

void setLevelMax | ( | const LevelPtr & | levelMax1 | ) |
| inline

Set the `LevelMax` option.

void setLevelMin | ( | const LevelPtr & | levelMin1 | ) |
| inline

Set the `LevelMin` option.

virtual void setOption | ( | const LogString & | option,
|  | const LogString & | value
| ) |  |
| virtual

Set options.

Implements OptionHandler.

The documentation for this class was generated from the following file:

- levelrangefilter.h