Adobe® Flex® 4 Language Reference
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mx.logging 
ILoggingTarget 
Packagemx.logging
Interfacepublic interface ILoggingTarget
Implementors AbstractTarget

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

All logger target implementations within the logging framework must implement this interface.



Public Properties
 PropertyDefined By
  filters : Array
In addition to the level setting, filters are used to provide a psuedo-hierarchical mapping for processing only those events for a given category.
ILoggingTarget
  level : int
Provides access to the level this target is currently set at.
ILoggingTarget
Public Methods
 MethodDefined By
  
Sets up this target with the specified logger.
ILoggingTarget
  
Stops this target from receiving events from the specified logger.
ILoggingTarget
Property Detail

filters

property
filters:Array

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

In addition to the level setting, filters are used to provide a psuedo-hierarchical mapping for processing only those events for a given category.

Each logger belongs to a category. By convention these categories map to the fully qualified class name in which the logger is used. For example, a logger that is logging messages for the mx.rpc.soap.WebService class would use "mx.rpc.soap.WebService" as the parameter to the Log.getLogger() call. When messages are sent under this category only those targets that have a filter which matches that category will receive notification of those events. Filter expressions may include a wildcard match, indicated with an asterisk. The wildcard must be the right most character in the expression. For example: rpc*, mx.*, or *. If an invalid expression is specified a InvalidFilterError will be thrown. No spaces or any of the following characters are valid within a filter expression: []~$^&\/(){}<>+=`!#%?,:;'"@.



Implementation
    public function get filters():Array
    public function set filters(value:Array):void

Example
How to use this example
      var traceLogger:ILoggingTarget = new TraceTarget();
      traceLogger.filters = [ "mx.rpc.*", "mx.messaging.*" ];
      Log.addTarget(traceLogger);
      

level

property 
level:int

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Provides access to the level this target is currently set at. Value values are:

  • LogEventLevel.FATAL designates events that are very harmful and will eventually lead to application failure
  • LogEventLevel.ERROR designates error events that might still allow the application to continue running.
  • LogEventLevel.WARN designates events that could be harmful to the application operation
  • LogEventLevel.INFO designates informational messages that highlight the progress of the application at coarse-grained level.
  • LogEventLevel.DEBUG designates informational level messages that are fine grained and most helpful when debugging an application.
  • LogEventLevel.ALL intended to force a target to process all messages.



Implementation
    public function get level():int
    public function set level(value:int):void
Method Detail

addLogger

()method
public function addLogger(logger:ILogger):void

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Sets up this target with the specified logger. This allows this target to receive log events from the specified logger.

Note: This method is called by the framework and should not be called by you directly.

Parameters

logger:ILogger — The ILogger that this target listens to.

removeLogger

()method 
public function removeLogger(logger:ILogger):void

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Stops this target from receiving events from the specified logger.

Note: This method is called by the framework and should not be called by you directly.

Parameters

logger:ILogger — The ILogger that this target ignores.