Adobe® Flex® 4 Language Reference
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mx.logging 
ILogger 
Packagemx.logging
Interfacepublic interface ILogger extends IEventDispatcher
Implementors LogLogger

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

All loggers within the logging framework must implement this interface.

See also



Public Properties
 PropertyDefined By
  category : String
[read-only] The category value for the logger.
ILogger
Public Methods
 MethodDefined By
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.
IEventDispatcher
  
debug(message:String, ... rest):void
Logs the specified data using the LogEventLevel.DEBUG level.
ILogger
 Inherited
Dispatches an event into the event flow.
IEventDispatcher
  
error(message:String, ... rest):void
Logs the specified data using the LogEventLevel.ERROR level.
ILogger
  
fatal(message:String, ... rest):void
Logs the specified data using the LogEventLevel.FATAL level.
ILogger
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
IEventDispatcher
  
info(message:String, ... rest):void
Logs the specified data using the LogEvent.INFO level.
ILogger
  
log(level:int, message:String, ... rest):void
Logs the specified data at the given level.
ILogger
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
IEventDispatcher
  
warn(message:String, ... rest):void
Logs the specified data using the LogEventLevel.WARN level.
ILogger
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
IEventDispatcher
Property Detail

category

property
category:String  [read-only]

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

The category value for the logger.



Implementation
    public function get category():String
Method Detail

debug

()method
public function debug(message:String, ... rest):void

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

Logs the specified data using the LogEventLevel.DEBUG level. LogEventLevel.DEBUG designates informational level messages that are fine grained and most helpful when debugging an application.

The string specified for logging can contain braces with an index indicating which additional parameter should be inserted into the string before it is logged. For example "the first additional parameter was {0} the second was {1}" will be translated into "the first additional parameter was 10 the second was 15" when called with 10 and 15 as parameters.

Parameters

message:String — The information to log. This string can contain special marker characters of the form {x}, where x is a zero based index that will be replaced with the additional parameters found at that index if specified.
 
... rest — Additional parameters that can be subsituted in the str parameter at each "{x}" location, where x is an integer (zero based) index value into the Array of values specified.


Example
How to use this example
      // Get the logger for the mx.messaging.Channel "category"
      // and send some data to it.
      var logger:ILogger = Log.getLogger("mx.messaging.Channel");
      logger.debug("here is some channel info {0} and {1}", 15.4, true);
     
      // This will log the following String:
      //   "here is some channel info 15.4 and true"
      

error

()method 
public function error(message:String, ... rest):void

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

Logs the specified data using the LogEventLevel.ERROR level. LogEventLevel.ERROR designates error events that might still allow the application to continue running.

The string specified for logging can contain braces with an index indicating which additional parameter should be inserted into the string before it is logged. For example "the first additional parameter was {0} the second was {1}" will be translated into "the first additional parameter was 10 the second was 15" when called with 10 and 15 as parameters.

Parameters

message:String — The information to log. This String can contain special marker characters of the form {x}, where x is a zero based index that will be replaced with the additional parameters found at that index if specified.
 
... rest — Additional parameters that can be subsituted in the str parameter at each "{x}" location, where x is an integer (zero based) index value into the Array of values specified.


Example
How to use this example
      // Get the logger for the mx.messaging.Channel "category"
      // and send some data to it.
      var logger:ILogger = Log.getLogger("mx.messaging.Channel");
      logger.error("here is some channel info {0} and {1}", 15.4, true);
     
      // This will log the following String:
      //   "here is some channel info 15.4 and true"
      

fatal

()method 
public function fatal(message:String, ... rest):void

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

Logs the specified data using the LogEventLevel.FATAL level. LogEventLevel.FATAL designates events that are very harmful and will eventually lead to application failure

The string specified for logging can contain braces with an index indicating which additional parameter should be inserted into the string before it is logged. For example "the first additional parameter was {0} the second was {1}" will be translated into "the first additional parameter was 10 the second was 15" when called with 10 and 15 as parameters.

Parameters

message:String — The information to log. This String can contain special marker characters of the form {x}, where x is a zero based index that will be replaced with the additional parameters found at that index if specified.
 
... rest — Additional parameters that can be subsituted in the str parameter at each "{x}" location, where x is an integer (zero based) index value into the Array of values specified.


Example
How to use this example
      // Get the logger for the mx.messaging.Channel "category"
      // and send some data to it.
      var logger:ILogger = Log.getLogger("mx.messaging.Channel");
      logger.fatal("here is some channel info {0} and {1}", 15.4, true);
     
      // This will log the following String:
      //   "here is some channel info 15.4 and true"
      

info

()method 
public function info(message:String, ... rest):void

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

Logs the specified data using the LogEvent.INFO level. LogEventLevel.INFO designates informational messages that highlight the progress of the application at coarse-grained level.

The string specified for logging can contain braces with an index indicating which additional parameter should be inserted into the string before it is logged. For example "the first additional parameter was {0} the second was {1}" will be translated into "the first additional parameter was 10 the second was 15" when called with 10 and 15 as parameters.

Parameters

message:String — The information to log. This String can contain special marker characters of the form {x}, where x is a zero based index that will be replaced with the additional parameters found at that index if specified.
 
... rest — Additional parameters that can be subsituted in the str parameter at each "{x}" location, where x is an integer (zero based) index value into the Array of values specified.


Example
How to use this example
      // Get the logger for the mx.messaging.Channel "category"
      // and send some data to it.
      var logger:ILogger = Log.getLogger("mx.messaging.Channel");
      logger.info("here is some channel info {0} and {1}", 15.4, true);
     
      // This will log the following String:
      //   "here is some channel info 15.4 and true"
      

log

()method 
public function log(level:int, message:String, ... rest):void

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

Logs the specified data at the given level.

The String specified for logging can contain braces with an index indicating which additional parameter should be inserted into the String before it is logged. For example "the first additional parameter was {0} the second was {1}" is translated into "the first additional parameter was 10 the second was 15" when called with 10 and 15 as parameters.

Parameters

level:int — The level this information should be logged at. Valid 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.
 
message:String — The information to log. This String can contain special marker characters of the form {x}, where x is a zero based index that will be replaced with the additional parameters found at that index if specified.
 
... rest — Additional parameters that can be subsituted in the str parameter at each "{x}" location, where x is an integer (zero based) index value into the Array of values specified.


Example
How to use this example
      // Get the logger for the mx.messaging.Channel "category"
      // and send some data to it.
      var logger:ILogger = Log.getLogger("mx.messaging.Channel");
      logger.log(LogEventLevel.DEBUG, "here is some channel info {0} and {1}", LogEventLevel.DEBUG, 15.4, true);
     
      // This will log the following String as a DEBUG log message:
      //   "here is some channel info 15.4 and true"
      

warn

()method 
public function warn(message:String, ... rest):void

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

Logs the specified data using the LogEventLevel.WARN level. LogEventLevel.WARN designates events that could be harmful to the application operation.

The string specified for logging can contain braces with an index indicating which additional parameter should be inserted into the string before it is logged. For example "the first additional parameter was {0} the second was {1}" will be translated into "the first additional parameter was 10 the second was 15" when called with 10 and 15 as parameters.

Parameters

message:String — The information to log. This String can contain special marker characters of the form {x}, where x is a zero based index that will be replaced with the additional parameters found at that index if specified.
 
... rest — Aadditional parameters that can be subsituted in the str parameter at each "{x}" location, where x is an integer (zero based) index value into the Array of values specified.


Example
How to use this example
      // Get the logger for the mx.messaging.Channel "category"
      // and send some data to it.
      var logger:ILogger = Log.getLogger("mx.messaging.Channel");
      logger.warn("here is some channel info {0} and {1}", 15.4, true);
     
      // This will log the following String:
      //   "here is some channel info 15.4 and true"