A logger capable of logging from org.slf4j.event.LoggingEvent implements this interface.

Please note that when the log(LoggingEvent) method assumes that the event was filtered beforehand and no further filtering needs to occur by the method itself.

Implementations of this interface may apply further filtering but they are not required to do so. In other words, log(LoggingEvent) method is free to assume that the event was filtered beforehand and no further filtering needs to occur in the method itself.

See also https://jira.qos.ch/browse/SLF4J-575