A LoggingPolicy defines which events will be logged. This is most often based on the criteria of category and level.
A LoggingPolicy decides whether or not to log an event by evaluating a one-argument
isInterestingBlock, with the event. Here is the implementation
of the default isInterestingBlock:
defaultIsInterestingBlock ^ [ :event | event category == self category and: [ event isLevelHigherThan: self level ]]
You can configure your own LoggingPolicy by defining a custom isInterestingBlock. The isInterestingBlock for the class-side convenience #debugPolicy looks like this:
[ :event | event isLevelHigherThan: #debug ]
This policy will log all events with a level greater or equal to #debug, regardless of category. For a discussion of categories, see here.
For tricky logging situations, you should use a CompositeLoggingPolicy.
Published Thursday, October 19, 2006